257,012 results match your criteria Avian Research[Journal]


Effect of pelleting and different feeding programs on growth performance, carcass yield, and nutrient digestibility in broiler chickens.

Poult Sci 2019 Apr 17. Epub 2019 Apr 17.

Department of Animal Science, Federal University of Paraná, Curitiba 80035-050, Brazil.

This experiment was conducted to study the effect of different feeding programs and pelleting on performance, nutrient digestibility, ileal digestible energy (IDE); and carcass yield of broilers from 21 to 35 d of age. In total, 768 male broilers were distributed according to a completely randomized design with 6 treatments and 8 replicates of 16 birds each. The treatments were mash and pelleted diets provided ad libitum, or pelleted and supplied at the same rate (100%) or restricted at 95, 90, and 85% (P100, P95, P90, and P85) of the amount consumed by the birds fed mash diet ad libitum. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3382/ps/pez176DOI Listing

The influence of indigestible protein on the performance and meat quality of broilers vaccinated for coccidiosis.

Poult Sci 2019 Apr 17. Epub 2019 Apr 17.

Department of Animal and Poultry Science, University of Saskatchewan, Saskatoon, SK S7N5A8, Canada.

High dietary protein and the use of poorly digested protein sources have been suggested to negatively impact broiler health, possibly because of protein fermentation in the distal intestinal tract. The effect of dietary protein levels with low or high indigestible protein fractions (LIP or HIP) on male and female broiler performance were evaluated. The trial was completely randomized with a 2 × 3 × 2 factorial arrangement, where gender, dietary protein levels (24, 26, and 28%), and dietary protein digestible fractions were the main factors. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3382/ps/pez216DOI Listing

Effects of dietary energy and protein content and lipid source on growth performance and carcass traits in Pekin ducks.

Poult Sci 2019 Apr 17. Epub 2019 Apr 17.

State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.

The present study was conducted to determine the impact of dietary energy and protein concentrations and lipid sources on growth performance and carcass traits of Pekin ducks. In Exp. 1, 15-day-old ducks (6 replicate pens, 60 ducks/pen) were randomly assigned to 4 dietary treatments with different metabolizable energy (ME) and crude protein (CP) concentrations (2,850 kcal/kg and 16%, 2,950 kcal/kg and 16. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3382/ps/pez217DOI Listing

An assessment of climate change vulnerability for Important Bird Areas in the Bering Sea and Aleutian Arc.

PLoS One 2019 17;14(4):e0214573. Epub 2019 Apr 17.

US Fish and Wildlife Service, Anchorage, Alaska, United States of America.

Recently available downscaled ocean climate models for the Bering Sea and Aleutian Arc offer the opportunity to assess climate vulnerability for upper trophic level consumers such as marine birds. We analyzed seasonal and annual spatial projections from three climate models for two physical climate variables (seawater temperature and sea ice) and three forage variables (large copepods, euphausiids, and benthic infauna), comparing projected conditions from a recent time period (2003-2012) to a future time period (2030-2039). We focused the analyses on core areas within globally significant Important Bird Areas, and developed indices of the magnitude of projected change and vulnerability agreement among models. Read More

View Article

Download full-text PDF

Source
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0214573PLOS
April 2019
1 Read

On-farm broiler chicken welfare assessment using transect sampling reflects environmental inputs and production outcomes.

PLoS One 2019 17;14(4):e0214070. Epub 2019 Apr 17.

Department of Animal and Aquacultural Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, Ås, Norway.

To evaluate the utility of transect sampling for assessing animal welfare in large chicken flocks, we quantified relationships between environmental inputs, welfare problems detected using transect sampling, and production outcomes. We hypothesised that environmental inputs including environmental complexity (i.e. Read More

View Article

Download full-text PDF

Source
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0214070PLOS

Influences of dietary crude protein and stocking density on growth performance and body measurements of ostrich chicks.

An Acad Bras Cienc 2019 8;91(1):e20180479. Epub 2019 Apr 8.

Nutrition and Clinical Nutrition Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt.

Thirty-six African Black ostrich chicks were used to investigate the effects of dietary crude protein (CP) levels (180, 210 and 240 g/kg), stocking density (4.5 and 3 m2/bird) and their interactions. A factorial arrangement was used to examine the impact of treatments on growth performance and body measurements of ostrich chicks during 2 to 10 weeks of the age. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1590/0001-3765201920180479DOI Listing

The sandwich structure of keratinous layers controls the form and growth orientation of chicken rhinotheca.

J Anat 2019 Apr 17. Epub 2019 Apr 17.

Nagoya University Museum, Nagoya, Japan.

The upper beak bone of birds is known to be overlain by the rhinotheca, which is composed of the horny sheath of keratinous layers. However, the details of the structure and growth pattern of the rhinotheca are yet to be understood. In this study, the microstructure of the rhinotheca from chicken specimens of different growth stages (ranging from 1 to ~ 80 days old) was analyzed using a combination of thin section and scanning electron microscopy observations, and small-angle X-ray scattering analysis. Read More

View Article

Download full-text PDF

Source
https://onlinelibrary.wiley.com/doi/abs/10.1111/joa.12998
Publisher Site
http://dx.doi.org/10.1111/joa.12998DOI Listing
April 2019
1 Read

Comparing erosion and organ accumulation rates of lead and alternative lead-free ammunition fed to captive domestic ducks.

Ambio 2019 Apr 16. Epub 2019 Apr 16.

Institute of Animal Nutrition (ITE), Bundesallee 37, 38116, Braunschweig, Germany.

Lead poisoning of birds of prey from ingestion of ammunition lead has been well documented. Alternative, lead-free ammunition is widely available, but the toxicokinetics of other metals in birds are poorly understood. We tested the erosion of lead, copper, zinc, iron and brass by feeding domestic Pekin ducks (Anas platyrhynchos forma domestica) defined numbers of small metal pellets. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s13280-019-01183-0DOI Listing

Immunosuppressive potential of fowl adenovirus serotype 4.

Poult Sci 2019 Apr 16. Epub 2019 Apr 16.

College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong Province 271018, China.

Fowl adenovirus serotype 4 (FAdV-4) is the causative agent of hydropericardium syndrome. To clarify the effects of FAdV-4 on immune organs in birds, we conducted a detailed examination of dynamic morphology and damage mechanisms in chickens randomly divided into 4 groups (FAdV-4, vaccination, FAdV-4 plus vaccination, and control). FAdV-4 caused the depletion of lymphocytes and subsequent growth impairment in the thymus and bursa. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3382/ps/pez179DOI Listing

Different dietary trace mineral sources for broiler breeders and their progenies.

Poult Sci 2019 Apr 16. Epub 2019 Apr 16.

Department of Animal Science, Universidade de São Paulo, Pirassununga, Brazil.

The objective of this study was to evaluate the effect of different trace mineral supplementation sources in the diet of broiler breeders on their performance and on their progenies. In total, 128 Cobb 500 broiler breeders were distributed according to a completely randomized experimental design in 2 experimental treatments. The control group was fed a diet supplemented with inorganic trace minerals (ITM), while the other group was fed a diet supplemented with reduced levels of trace minerals in the organic form. Read More

View Article

Download full-text PDF

Source
https://academic.oup.com/ps/advance-article/doi/10.3382/ps/p
Publisher Site
http://dx.doi.org/10.3382/ps/pez182DOI Listing
April 2019
1 Read

Age-related arabinoxylan hydrolysis and fermentation in the gastrointestinal tract of broilers fed wheat-based diets.

Poult Sci 2019 Apr 16. Epub 2019 Apr 16.

Laboratory of Food Chemistry and Biochemistry, Department of Microbial and Molecular Systems (M²S), KU Leuven, 3001 Leuven, Belgium.

Endoxylanases are frequently used in cereal-based broiler feeds to improve the nutritional quality of the feed. It is hypothesized that the age of broilers and the age-related development of their intestinal microbiota influence the efficacy of these enzymes. Hence, the objective of this study was to identify possible age-related changes in arabinoxylan (AX) digestion in the different parts of the gastrointestinal (GI) tract of broilers. Read More

View Article

Download full-text PDF

Source
https://academic.oup.com/ps/advance-article/doi/10.3382/ps/p
Publisher Site
http://dx.doi.org/10.3382/ps/pez159DOI Listing
April 2019
1 Read

Extending r/K selection with a maternal risk-management model that classifies animal species into divergent natural selection categories.

Authors:
Deby L Cassill

Sci Rep 2019 Apr 16;9(1):6111. Epub 2019 Apr 16.

Department of Biological Sciences, USF St. Petersburg, St, Petersburg, Florida, 33701, USA.

Reproduction is a defining process of biological systems. Every generation, across all species, breeding females repopulate ecosystems with offspring. r/K selection was the first theory to classify animal species by linking the rates with which breeding females repopulated ecosystems, to the stability of ecosystems. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1038/s41598-019-42562-7DOI Listing

Duck production systems and highly pathogenic avian influenza H5N8 in France, 2016-2017.

Sci Rep 2019 Apr 16;9(1):6177. Epub 2019 Apr 16.

IHAP, Université de Toulouse, INRA, ENVT, Toulouse, France.

In winter 2016-2017, Highly Pathogenic Avian Influenza (HPAI) H5N8 virus spread across Europe, causing unprecedented epizootics. France was massively affected, resulting in the culling of over 6 million poultry. Boosted regression tree (BRT) models were used to quantify the association between spatial risk factors and HPAI H5N8 infection in poultry holdings and to generate predictive maps for HPAI infection. Read More

View Article

Download full-text PDF

Source
http://www.nature.com/articles/s41598-019-42607-x
Publisher Site
http://dx.doi.org/10.1038/s41598-019-42607-xDOI Listing
April 2019
1 Read

Sexual selection predicts the rate and direction of colour divergence in a large avian radiation.

Nat Commun 2019 Apr 16;10(1):1773. Epub 2019 Apr 16.

Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK.

Sexual selection is proposed to be a powerful driver of phenotypic evolution in animal systems. At macroevolutionary scales, sexual selection can theoretically drive both the rate and direction of phenotypic evolution, but this hypothesis remains contentious. Here, we find that differences in the rate and direction of plumage colour evolution are predicted by a proxy for sexual selection intensity (plumage dichromatism) in a large radiation of suboscine passerine birds (Tyrannida). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1038/s41467-019-09859-7DOI Listing

Why has transparency evolved in aposematic butterflies? Insights from the largest radiation of aposematic butterflies, the Ithomiini.

Proc Biol Sci 2019 Apr;286(1901):20182769

1 Institut Systématique Évolution Biodiversité (ISYEB), CNRS, MNHN, Sorbonne Université , EPHE, Université des Antilles, CP50 75005 Paris , France.

Defended species are often conspicuous and this is thought to be an honest signal of defences, i.e. more toxic prey are more conspicuous. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1098/rspb.2018.2769DOI Listing

Avian functional responses to landscape recovery.

Proc Biol Sci 2019 Apr;286(1901):20190114

1 Fenner School of Environment and Society, The Australian National University , Frank Fenner Building 141, Linnaeus Way, Acton ACT 2601 , Australia.

Restoring native vegetation in agricultural landscapes can reverse biodiversity declines via species gains. Depending on whether the traits of colonizers are complementary or redundant to the assemblage, species gains can increase the efficiency or stability of ecological functions, yet detecting these processes is not straightforward. We propose a new conceptual model to identify potential changes to complementarity and redundancy in response to landscape change via relative changes in taxonomic and functional richness. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1098/rspb.2019.0114DOI Listing

Signal complexity communicates aggressive intent during contests, but the process is disrupted by noise.

Biol Lett 2019 Apr;15(4):20180841

School of Biological Sciences, Queen's University Belfast , 97 Lisburn Road, Belfast BT9 7BL , UK.

Contestants use displays to signal their aggressive intent and settle disputes before they escalate. For birds, this is often in the form of song, which can vary in structural complexity. The role of song complexity in signalling aggressive intent has not been fully established, and its efficacy could be influenced by background noise levels. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1098/rsbl.2018.0841DOI Listing

Epidemiology and Antibiogram of Isolated from Waterfowl Slaughterhouses in Taiwan.

J Vet Res 2019 Mar 22;63(1):79-86. Epub 2019 Mar 22.

Department of Veterinary Medicine, National Chiayi University, 60054 Chiayi, Taiwan, Republic of China.

Introduction: Laryngeal swab samples collected from three waterfowl slaughterhouses in central Taiwan were cultured and suspected isolates of were identified by API 20NE and 16S rDNA PCR.

Material And Methods: Serum agglutination was used for serotyping, and antimicrobial susceptibility was tested.

Results: Seventy-six isolates were detected, and the prevalences in the ducks and geese were 12. Read More

View Article

Download full-text PDF

Source
https://content.sciendo.com/view/journals/jvetres/63/1/artic
Publisher Site
http://dx.doi.org/10.2478/jvetres-2019-0003DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6458550PMC
March 2019
1 Read

Influence of starch sources and dietary protein levels on intestinal functionality and intestinal mucosal amino acids catabolism in broiler chickens.

J Anim Sci Biotechnol 2019 5;10:26. Epub 2019 Apr 5.

1State key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 People's Republic of China.

Background: There is growing interest in carbohydrate and protein nutrition to enhance the efficiency of animal production. Reduced-crude protein diets depress environmental pollution and feeding cost, but the challenge to their adoption is maintaining digestive function and growth performance of birds. The present study was conducted to evaluate the influence of different dietary starch sources and protein levels on intestinal functionality and mucosal amino acid catabolism. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1186/s40104-019-0334-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6449925PMC

Transcriptome Analyses of Heart and Liver Reveal Novel Pathways for Regulating Songbird Migration.

Sci Rep 2019 Apr 15;9(1):6058. Epub 2019 Apr 15.

Department of Animal Science, Pennsylvania State University, University Park, PA, 16802, USA.

Many birds undertake long biannual voyages during the night. During these times of the year birds drastically reduce their amount of sleep, yet curiously perform as well on tests of physical and cognitive performance than during non-migrating times of the year. This inherent physiological protection disappears when birds are forced to stay awake at other times of the year; thus these protective changes are only associated with the nocturnal migratory state. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1038/s41598-019-41252-8DOI Listing

Optimizing the conservation of migratory species over their full annual cycle.

Nat Commun 2019 Apr 15;10(1):1754. Epub 2019 Apr 15.

Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, ON, K1S 5B6, Canada.

Limited knowledge of the distribution, abundance, and habitat associations of migratory species hinders effective conservation actions. We use Neotropical migratory birds as a model group to compare approaches to prioritize land conservation needed to support ≥30% of the global abundances of 117 species. Specifically, we compare scenarios from spatial optimization models to achieve conservation targets by: 1) area requirements for conserving >30% abundance of each species for each week of the year independently vs. Read More

View Article

Download full-text PDF

Source
http://www.nature.com/articles/s41467-019-09723-8
Publisher Site
http://dx.doi.org/10.1038/s41467-019-09723-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6465267PMC
April 2019
1 Read

Characterizing the cultural niches of North American birds.

Proc Natl Acad Sci U S A 2019 Apr 15. Epub 2019 Apr 15.

Cornell Lab of Ornithology, Cornell University, Ithaca, NY 14850;

Efforts to mitigate the current biodiversity crisis require a better understanding of how and why humans value other species. We use Internet query data and citizen science data to characterize public interest in 621 bird species across the United States. We estimate the relative popularity of different birds by quantifying how frequently people use Google to search for species, relative to the rates at which they are encountered in the environment. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1073/pnas.1820670116DOI Listing
April 2019
1 Read

Role of Sialic Acid in Adhesion to Pig Colonic Mucins.

Infect Immun 2019 Apr 15. Epub 2019 Apr 15.

Department of Medical Biochemistry and Cell biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden

Infection with results in mucoid hemorrhagic diarrhea. This pathogen is associated with the colonic mucus layer, mainly composed of mucins. Infection regulates mucin -glycosylation in the colon and increases mucin secretion as well as binding sites on mucins. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1128/IAI.00889-18DOI Listing

The Influence of Curcumin on the Downregulation of MYC, Insulin and IGF-1 Receptors: A possible Mechanism Underlying the Anti-Growth and Anti-Migration in Chemoresistant Colorectal Cancer Cells.

Medicina (Kaunas) 2019 Apr 3;55(4). Epub 2019 Apr 3.

Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz 6135715794, Iran.

: Mounting evidence shows that curcumin, a bioactive substance originating from turmeric root, has anticancer properties. Additionally, curcumin prevents the migration and metastasis of tumor cells. However, the molecular mechanism involved in the anti-metastatic action of curcumin is not clear. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3390/medicina55040090DOI Listing

Delayed Feeding Alters Transcriptional and Post-Transcriptional Regulation of Hepatic Metabolic Pathways in Peri-Hatch Broiler Chicks.

Genes (Basel) 2019 Apr 3;10(4). Epub 2019 Apr 3.

Department of Animal Science, North Carolina State University, Raleigh, NC 27607, USA.

Hepatic fatty acid oxidation of yolk lipoproteins provides the main energy source for chick embryos. Post-hatching these yolk lipids are rapidly exhausted and metabolism switches to a carbohydrate-based energy source. We recently demonstrated that many microRNAs (miRNAs) are key regulators of hepatic metabolic pathways during this metabolic switching. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3390/genes10040272DOI Listing

A Novel Modified Hydrated Sodium Calcium Aluminosilicate (HSCAS) Adsorbent Can Effectively Reduce T-2 Toxin-Induced Toxicity in Growth Performance, Nutrient Digestibility, Serum Biochemistry, and Small Intestinal Morphology in Chicks.

Toxins (Basel) 2019 Apr 2;11(4). Epub 2019 Apr 2.

Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.

The objective of this study was to evaluate the ability of a modified hydrated sodium calcium aluminosilicate (HSCAS) adsorbent to reduce the toxicity of T-2 toxin in broilers. Ninety-six one-day-old male broilers were randomly allocated into four experimental groups with four replicates of six birds each. The four groups, 1-4, received a basal diet (BD), a BD plus 6. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3390/toxins11040199DOI Listing

Subclade 2.2.1-Specific Human Monoclonal Antibodies That Recognize an Epitope in Antigenic Site A of Influenza A(H5) Virus HA Detected between 2015 and 2018.

Viruses 2019 Apr 2;11(4). Epub 2019 Apr 2.

Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo 108-8639, Japan.

Highly pathogenic avian H5 influenza viruses persist among poultry and wild birds throughout the world. They sometimes cause interspecies transmission between avian and mammalian hosts. H5 viruses possessing the HA of subclade 2. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3390/v11040321DOI Listing

Meat Quality and Sensory Traits of Finisher Broiler Chickens Fed with Black Soldier Fly ( L.) Larvae Fat as Alternative Fat Source.

Animals (Basel) 2019 Apr 2;9(4). Epub 2019 Apr 2.

Department of Animal Medicine, Production and Health, University of Padova, Agripolis, Viale dell'Università 16, 35020 Legnaro, Padova, Italy.

At present, there is limited knowledge about the possible utilization of the fat fraction derived from (HI) larvae processing. The objective of the present study was to evaluate the replacement of soybean oil with HI larvae fat in broiler finisher diet, on the quality and sensory traits of their meat. At 21 days of age, 120 male broiler chickens were randomly allocated to three experimental groups (5 replicates and 8 birds/pen): a basal control diet (C), and two groups in which either 50% or 100% of the soybean oil was replaced with HI larvae fat (the HI50 and HI100 group, respectively). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3390/ani9040140DOI Listing
April 2019
1 Read

The birds and the bees: do Puerto Rican mothers and daughters talk about sex?

Arch Clin Med Case Rep 2018 9;2(6):190-205. Epub 2018 Nov 9.

UPR School of Medicine-CEMI, San Juan, PR.

Introduction: Effective communication skills that foster responsible sexual decisions are known to have the potential to reduce the risky adolescent sexual behavior. It is well understood that maternal communication is a key element in modifying the adolescent sexual behavior. The objective of this qualitative study was to explore if Puerto Rican mothers of adolescent girls have conversations about sexuality with their daughters and the content of such conversations. Read More

View Article

Download full-text PDF

Source
http://www.fortunejournals.com/articles/pthe-birds-and-the-b
Publisher Site
http://dx.doi.org/10.26502/acmcr.96550043DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6461385PMC
November 2018
1 Read

Specific detection of avian influenza H5N2 whole virus particles on lateral flow strips using a pair of sandwich-type aptamers.

Biosens Bioelectron 2019 Jun 1;134:123-129. Epub 2019 Apr 1.

Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Anam-dong, Seongbuk-gu, Seoul, 136-701, Republic of Korea. Electronic address:

We report a selection of a cognate pair of aptamers for whole avian influenza virus particles of H5N2 by using graphene-oxide based systemic evolution of ligands by exponential enrichment (GO-SELEX), and the application of a pair of sandwich-type binding aptamers on the lateral flow strips. The aptamers were characterized by GO-FRET assay, and Kd values of the selected aptamers were estimated to be from 6.913 × 10 to 1. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bios.2019.03.061DOI Listing
June 2019
1 Read

Recovery periods during repeated stress impact corticosterone and behavioral responses differently in house sparrows.

Horm Behav 2019 Apr 12. Epub 2019 Apr 12.

Department of Biology, Tufts University, Medford, MA 02155, USA.

A number of studies have shown that chronic stress can negatively impact both physiology and behavior in a variety of organisms. What has yet to be extensively explored is whether these changes permanently alter an animal's functioning, or if they can be reversed. In this study, we used wild-caught house sparrows (Passer domesticus) to assess how recovery periods influence the physiological and behavioral impacts of an initial four days and subsequent four days of repeated stressors. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.yhbeh.2019.04.009DOI Listing

High prevalence of Sarcocystis calchasi in racing pigeon flocks in Germany.

PLoS One 2019 15;14(4):e0215241. Epub 2019 Apr 15.

Clinic for Birds, Reptiles, Amphibians and Fish, Justus Liebig University Giessen, Giessen, Germany.

The apicomplexan parasite Sarcocystis calchasi (Coccidia: Eimeriorina: Sarcocystidae) is the causative agent of Pigeon Protozoal Encephalitis (PPE) and infects birds of the orders Columbiformes, Piciformes and Psittaciformes. Accipiter hawks (Aves: Accipitriformes) are the definitive hosts of this parasite. Infections of S. Read More

View Article

Download full-text PDF

Source
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0215241PLOS
April 2019
1 Read

Emerging respiratory infections threatening public health in the Asia-Pacific region: A position paper of the Asian Pacific Society of Respirology.

Respirology 2019 Apr 15. Epub 2019 Apr 15.

Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Hallym University Sacred Heart Hospital, Anyang, Republic of Korea.

In past decades, we have seen several epidemics of respiratory infections from newly emerging viruses, most of which originated in animals. These emerging infections, including severe acute respiratory syndrome coronavirus (SARS-CoV), Middle East respiratory syndrome coronavirus (MERS-CoV) and the pandemic influenza A(H1N1) and avian influenza (AI) viruses, have seriously threatened global health and the economy. In particular, MERS-CoV and AI A(H7N9) are still causing infections in several areas, and some clustering of cases of A(H5N1) and A(H7N9) may imply future possible pandemics. Read More

View Article

Download full-text PDF

Source
https://onlinelibrary.wiley.com/doi/abs/10.1111/resp.13558
Publisher Site
http://dx.doi.org/10.1111/resp.13558DOI Listing
April 2019
1 Read

Divergence in floral trait preferences between nonflower-specialized birds and insects on the Galápagos.

Am J Bot 2019 Apr 15;106(4):540-546. Epub 2019 Apr 15.

Institut Mediterrani d'Estudis Avançats (CSIC-UIB), Global Change Research Group, Mallorca, Balearic Islands, Spain.

Premise Of The Study: The characteristic scarcity of insects on remote oceanic islands has driven nonflower-specialized vertebrates to broaden their trophic niches and explore floral resources. From our previous studies in the Galápagos, we know that native insectivorous and frugivorous birds visit a wide range of entomophilous flowers and can also act as effective pollinators. Here, we tested whether opportunistic Galápagos birds show any preference for specific floral traits, and if so, this preference differs from that of insects. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1002/ajb2.1270DOI Listing

Antimicrobial activity of nest-lining feathers is enhanced by breeding activity in avian nests.

FEMS Microbiol Ecol 2019 May;95(5)

Departamento de Ecología Funcional y Evolutiva, Estación Experimental de Zonas Áridas (CSIC), Ctra. Sacramento s/n, La Cañada de San Urbano, E-04120 Almería, Spain.

The use of feathers as nest material has been proposed as a kind of self-medication strategy because antimicrobial-producing microorganisms living on feathers may defend offspring against pathogenic infections. In this case, it is expected that density of antimicrobial-producing bacteria, and their antimicrobial effects, are higher in feathers that line the nests than in eggshells. Moreover, we know that feather pigmentation and breeding activity may influence density and antimicrobial production of bacteria. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/femsec/fiz052DOI Listing

Veno-venous extracorporeal membrane oxygenation for patient with a history of open cholecystectomy and acute respiratory distress syndrome caused by coinfection of avian influenza A (H7N9) and Epstein-Barr virus.

Chin Med J (Engl) 2019 Apr 9. Epub 2019 Apr 9.

State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510120, China.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1097/CM9.0000000000000254DOI Listing

Insight Into Dynamics of Gut Microbial Community of Broilers Fed With Fructooligosaccharides Supplemented Low Calcium and Phosphorus Diets.

Front Vet Sci 2019 29;6:95. Epub 2019 Mar 29.

Department of Poultry Science, University of Georgia, Athens, GA, United States.

We investigated how the microbiota in the ileum and cecum of broiler chickens fed a diet of low calcium (Ca) and available phosphorus (aP) and prebiotic fructooligosaccharides (FOS) supplements changed over a 3 weeks period. Three dietary treatments were randomly assigned to four replicate cages of five birds each, including: positive control (PC), a wheat-corn-soybean meal-based diet; negative control (NC), as PC with 0.2% reduced Ca and aP; and NC + FOS, as NC supplemented with 0. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3389/fvets.2019.00095DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6449842PMC

Anatomical Pathology, Behavioral, and Physiological Responses Induced by Application of Non-penetrating Captive Bolt Devices in Layer Chickens.

Front Vet Sci 2019 28;6:89. Epub 2019 Mar 28.

Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada.

We evaluated three models of non-penetrating captive bolt devices, Zephyr-E, Zephyr- EXL, and Turkey euthanasia device (TED) for time to loss of sensibility and degree of brain damage during euthanasia in four age groups of male and female layer chickens (10-11, 20-21, 30-35, 60-70 weeks respectively). Latencies to onset of insensibility and cardiac arrest were assessed to detect whether killing birds via these devices was humane and effective. Both gross and microscopic pathology evaluations were conducted to score skull and brain trauma post mortem. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3389/fvets.2019.00089DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6447681PMC
March 2019
1 Read

Avian Primordial Germ Cells Contribute to and Interact With the Extracellular Matrix During Early Migration.

Front Cell Dev Biol 2019 28;7:35. Epub 2019 Mar 28.

Department of Radiology, Children's Hospital Los Angeles, Los Angeles, CA, United States.

During early avian development, primordial germ cells (PGC) are highly migratory, moving from the central area pellucida of the blastoderm to the anterior extra-embryonic germinal crescent. The PGCs soon move into the forming blood vessels by intravasation and travel in the circulatory system to the genital ridges where they participate in the organogenesis of the gonads. This complex cellular migration takes place in close association with a nascent extracellular matrix that matures in a precise spatio-temporal pattern. Read More

View Article

Download full-text PDF

Source
https://www.frontiersin.org/article/10.3389/fcell.2019.00035
Publisher Site
http://dx.doi.org/10.3389/fcell.2019.00035DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6447691PMC
March 2019
3 Reads

Evidence of West Nile virus circulation among humans in central northern Algeria.

New Microbes New Infect 2019 May 8;29:100512. Epub 2019 Mar 8.

Laboratoire des Arbovirus et Virus de Fièvres Hémorragiques, Institut Pasteur de Dakar, Senegal.

West Nile Virus (WNV) is the most widely distributed flavivirus worldwide. It is a mosquito-borne virus, and birds constitute its natural reservoir. Humans and equines are considered accidental hosts. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S20522975193000
Publisher Site
http://dx.doi.org/10.1016/j.nmni.2019.01.008DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6444287PMC
May 2019
1 Read

Neurophysiology of Avian Sleep: Comparing Natural Sleep and Isoflurane Anesthesia.

Front Neurosci 2019 28;13:262. Epub 2019 Mar 28.

Avian Sleep Group, Max Planck Institute for Ornithology, Seewiesen, Germany.

Propagating slow-waves in electroencephalogram (EEG) or local field potential (LFP) recordings occur during non-rapid eye-movement (NREM) sleep in both mammals and birds. Moreover, in both, input from the thalamus is thought to contribute to the genesis of NREM sleep slow-waves. Interestingly, the general features of slow-waves are also found under isoflurane anesthesia. Read More

View Article

Download full-text PDF

Source
https://www.frontiersin.org/article/10.3389/fnins.2019.00262
Publisher Site
http://dx.doi.org/10.3389/fnins.2019.00262DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6447711PMC
March 2019
1 Read

The different effects of viral and bacterial mimics maternal stimuli on ethology of hens and reproduction of their offspring.

Poult Sci 2019 Apr 15. Epub 2019 Apr 15.

National Engineering Laboratory for Animal Breeding & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China.

Environmental stimuli resulting from immunological stress can induce transgenerational phenotypic inheritance, but few similar studies are found in avian. Here, we challenged F0 hens with polyinosinic: polycytidylic acid [Poly(I: C)] and lipopolysaccharide (LPS) at 53 wk of age, and then investigated the ethology of the challenged hens. In the unchallenged F1 descendants, the egg quality at 23 wk of age and laying rate (LR) at different stages were measured. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3382/ps/pez189DOI Listing

Survey on the prevalence of Dermanyssus gallinae in commercial laying farms in Portugal.

Avian Pathol 2019 Apr 15:1-26. Epub 2019 Apr 15.

d Moredun Research Institute , Pentlands Science Park, Bush Loan, Edinburgh , Midlothian EH26 0PZ , United Kingdom.

Dermanyssus gallinae, also known as the poultry red mite (PRM), is a blood-feeding ectoparasite of poultry and sylvatic birds. This mite is endemic in many parts of the globe and poses a threat to the egg industry, while compromising the health and welfare of hens, both directly and as a vector of diseases. In addition, people attacked by D. Read More

View Article

Download full-text PDF

Source
https://www.tandfonline.com/doi/full/10.1080/03079457.2019.1
Publisher Site
http://dx.doi.org/10.1080/03079457.2019.1606415DOI Listing
April 2019
1 Read

Comparative pathogenicity of two subtypes (hepatitis-type and pancreatitis-type) of duck hepatitis A virus type 1 in experimentally-infected Muscovy ducklings.

Avian Pathol 2019 Apr 15:1-27. Epub 2019 Apr 15.

b Institute of Animal Husbandry and Veterinary medicine, Fujian Academy of Agricultural Science . Fuzhou , China .

Duck hepatitis A virus type 1 (DHAV-1) causes acute hepatitis with high morbidity and mortality in ducklings of the genera Cairina and Anas and is characterized by ecchymotic haemorrhage and necrosis of the liver surface. Since September 2011, a new subtype of DHAV-1 (named pancreatitis-type DHAV-1) has been isolated. This new subtype is characterized by yellowish or haemorrhagic pancreatitis, but with no significant pathological changes in the liver. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1080/03079457.2019.1605146DOI Listing

Evolution of a major bovine mastitic genotype (rpoB sequence type 10-2) of Staphylococcus aureus in cows.

J Microbiol 2019 Apr 13. Epub 2019 Apr 13.

Department of Farm Animal Medicine, Seoul, 08826, Republic of Korea.

Staphylococcus aureus is the major pathogen leading to bovine mastitis globally while livestock-associated methicillin resistant S. aureus (LA-MRSA) has become a potential threat to public health. MRSA from bovine mastitis is not common but a methicillin susceptible S. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s12275-019-8699-1DOI Listing

In vitro characterization and analysis of probiotic species in the chicken intestine by real-time polymerase chain reaction.

Poult Sci 2019 Apr 13. Epub 2019 Apr 13.

Department of Poultry Sciences, University of Georgia, Athens, GA, 30602, USA.

Two experiments, 1 in vitro and 1 in vivo study, were conducted to analyze probiotic species characteristics and survival in the intestine of broiler birds. The in vitro study characterized the effect of bile salt supplementation and pH on the proliferation of Lactobacillus reuteri, Pediococcus acidilactici, Bifidobacterium animalis, and Enterococcus faecium. L. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3382/ps/pez188DOI Listing

Glycosaminoglycans and vitamin C affect broiler bone parameters.

Poult Sci 2019 Apr 13. Epub 2019 Apr 13.

Department of Morphology and Animal Physiology, São Paulo State University, Jaboticabal, SP, Brazil, 14884-900.

The purpose of this study was to determine if in ovo feeding and rearing with glycosaminoglycans and vitamin C could influence bone and cartilage macroscopy, mineral composition, mineral density and surface area, bone breaking strength, and bone histology in broilers. Fertile eggs from breeders (Cobb) were either uninjected or injected with 4 μg of additive/100 μL water on day 4 of incubation. Every 100 g of in ovo additive contained 30 g of chondroitin sulfate, 30 g of glucosamine, and 5 g of vitamin C. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3382/ps/pez177DOI Listing

Restriction of dietary non-phytate phosphorus on growth performance and expression of intestinal phosphate cotransporter genes in broilers.

Poult Sci 2019 Apr 13. Epub 2019 Apr 13.

Department of Food, Agriculture and BioResources, Asian Institute of Technology, Klong Luang 12120, Thailand.

Effects of dietary non-phytate phosphorus (nPP) restriction on growth and duodenal type IIb sodium-dependent phosphate cotransporter (NaPi-IIb) genes were observed. A total of 432 one-day old Cobb500 male broiler chickens in 36 cage pens were divided into 6 groups with each group containing 6 pens. Each group was treated with one of the diets containing 0. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3382/ps/pez171DOI Listing

Effects of in ovo injection of L-ascorbic acid on growth performance, carcass composition, plasma antioxidant capacity, and meat quality in broiler chickens1,2,3.

Poult Sci 2019 Apr 13. Epub 2019 Apr 13.

Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762.

The current study was designed to investigate the effects of the in ovo injection of different dosages of L-ascorbic acid (AA) on posthatch growth performance, carcass characteristics, plasma antioxidant capacity, and meat quality in broiler chickens. A total of 2,220 Ross 708 broiler hatching eggs containing live embryos at 17 D of incubation were subjected to 1 of 6 treatments (trt): non-injected control, saline-injected control, or saline containing 3, 6, 12 or 36 mg of AA. An Inovoject m semi-automatic multi-egg injector was used to inject a 100 μL volume of sterile saline (0. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3382/ps/pez173DOI Listing
April 2019
2 Reads

Hard tick (Acari: Ixodidae) survey of Oleoducto trail, Soberania National Park, Panama.

Ticks Tick Borne Dis 2019 Apr 9. Epub 2019 Apr 9.

Departamento de Investigación en Entomología Médica, Instituto Conmemorativo Gorgas de Estudios de la Salud, Panama. Electronic address:

Hard tick diversity was determined along the Oleoducto trail (OT), Soberania National Park, from February 2013 to September 2014. Ticks were surveyed at four sites of 500 m each and with increasing forest cover gradient and decreasing disturbance. Tick collections were made by dragging and flagging vegetation, and traps and mist nets were used to capture mammals and birds. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S1877959X183046
Publisher Site
http://dx.doi.org/10.1016/j.ttbdis.2019.04.001DOI Listing
April 2019
1 Read