162,560 results match your criteria chicken


The physiological role of guanidinoacetic acid and its relationship with arginine in broiler chickens.

Poult Sci 2021 Apr 20;100(7):101203. Epub 2021 Apr 20.

Alzchem Trostberg GmbH, Dr.-Albert-Frank-Straße 32, 83308 Trostberg, Germany.

The role of guanidinoacetic acid (GAA) and its relationship with arginine was reviewed in order to define a replacement ratio between GAA and arginine for broiler diet formulation, the ratio being of how much arginine could be spared, or replaced by GAA. Guanidionoacetic acid, the precursor of creatine, can be synthesized de novo from the amino acids arginine and glycine, whereby 1 mol of arginine creates 1 mol of GAA; that is a weight:weight (w:w) ratio of 1.49:1 (arginine:GAA). Read More

View Article and Full-Text PDF

The protective effect of Nano-selenium against cadmium-induced cerebellar injury via the heat shock protein pathway in chicken.

Food Chem Toxicol 2021 Jun 9:112332. Epub 2021 Jun 9.

College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P.R. China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, P.R. China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin 150030, P.R. China. Electronic address:

Cadmium (Cd) is one of the toxic environmental heavy metals that poses health hazard to animal due to its toxicity. Nano-Selenium (Nano-Se) is a Nano-composite form of Se, which has emerged as promising therapeutic agent for its protective roles against heavy metals-induced toxicity. Heat shock proteins (HSPs) play a critical role in cellular homeostasis. Read More

View Article and Full-Text PDF

Natural loss of function of ephrin-B3 shapes spinal flight circuitry in birds.

Sci Adv 2021 Jun 11;7(24). Epub 2021 Jun 11.

Department of Medical Neurobiology, IMRIC, Hebrew University-Hadassah Medical School, Jerusalem 91120, Israel.

Flight in birds evolved through patterning of the wings from forelimbs and transition from alternating gait to synchronous flapping. In mammals, the spinal midline guidance molecule ephrin-B3 instructs the wiring that enables limb alternation, and its deletion leads to synchronous hopping gait. Here, we show that the ephrin-B3 protein in birds lacks several motifs present in other vertebrates, diminishing its affinity for the EphA4 receptor. Read More

View Article and Full-Text PDF

Use of available crop by-products as alternative bedding materials to wheat straw for rearing broilers.

Animal 2021 Jun 8;15(7):100260. Epub 2021 Jun 8.

Poultry Production Department, Agriculture College, Damietta University, Damietta 34517, Egypt.

The provision of suitable bedding for rearing broilers is an ongoing challenge for poultry producers. The aim of the present study was to evaluate the effect of using different types of crop residues as alternative bedding materials to wheat straw on growth performance, carcass traits, health, and welfare of broilers; moreover, the effects on the bedding and air quality were analyzed. We randomly assigned 180 1-day-old chickens (Cobb 500) across six bedding groups (three replicates of 10 birds each). Read More

View Article and Full-Text PDF

Immunization of chicken with flagellin adjuvanted Salmonella enteritidis bacterial ghosts confers complete protection against chicken salmonellosis.

Poult Sci 2021 Apr 21;100(7):101205. Epub 2021 Apr 21.

College of Veterinary Medicine, Jeonbuk National University, Iksan Campus, 54596, Iksan, Republic of Korea. Electronic address:

The present study describes the generation of Salmonella enteritidis (SE) ghosts with a surface decorated Salmonella Typhimurium (ST) flagellin (FliC) antigen for immune enhancement and strain-specific protection. The ghosts were generated by biological means using pJHL184::fliC temperature inducible plasmid where the lysis occurs by phage PhiX174 lysis gene E expression. Being an inactivated strain, no environmental contamination was observed by fecal shedding upon inoculation into the chicken. Read More

View Article and Full-Text PDF

Genetic and pathogenic characterization of a novel recombinant avian infectious bronchitis virus derived from GI-1, GI-13, GI-28, and GI-19 strains in Southwestern China.

Poult Sci 2021 Apr 29;100(7):101210. Epub 2021 Apr 29.

Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province; Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Science Sichuan University, Chengdu 610064, China. Electronic address:

Avian infectious bronchitis (IB), caused by avian infectious bronchitis virus (IBV), is an acute and highly contagious disease that is extremely harmful to the poultry industry throughout the world. The cross-using of different attenuated live vaccine strains has led to the occurrence of diverse IBV serotypes. In this study, we isolated an IBV strain from a chicken farm in southwest China and designated it CK/CH/SCMY/160315. Read More

View Article and Full-Text PDF

Distribution and molecular characterization of avian infectious bronchitis virus in southern China.

Poult Sci 2021 Mar 27;100(7):101169. Epub 2021 Mar 27.

Guangdong Provincial Animal Virus Vector Vaccine Engineering Technology Research Center, College of Animal Science, South China Agricultural University, Guangzhou, 510642, P.R. China; Key Laboratory of Healthy Animal Husbandry and Environmental Control of Guangdong Province, Guangzhou, 510642, Guangdong, P.R. China. Electronic address:

Avian infectious bronchitis virus (IBV) is causing considerable economic losses in the world poultry industry. The main difficulty of prevention and control of IB disease is the numerous genotypes and serotypes. The genetic analysis of IBV was mainly based on the S1 gene which played an important role in infectivity. Read More

View Article and Full-Text PDF

Rapid determination of viable but non-culturable Campylobacter jejuni in food products by loop-mediated isothermal amplification coupling propidium monoazide treatment.

Int J Food Microbiol 2021 Jun 1;351:109263. Epub 2021 Jun 1.

Food Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada; Department of Food Science and Agricultural Chemistry, Faculty of Agricultural and Environmental Sciences, McGill University, Ste Anne de Bellevue, QC H9X 3V9, Canada. Electronic address:

Campylobacter is the leading cause of foodborne human diarrhea worldwide. This microbe in the viable but non-culturable (VBNC) state can evade detection by routinely used culture-based methods and remain viable for extended periods of time. Bacteria in this dormancy state can resume their metabolic activity and virulence by resuscitation under favorable conditions, and subsequently cause infections. Read More

View Article and Full-Text PDF

Predicting the effect of salt on heat tolerance of Listeria monocytogenes in meat and fish products.

Int J Food Microbiol 2021 Jun 1;352:109265. Epub 2021 Jun 1.

The National Food Institute, Technical University of Denmark, Division for Microbiology and Production, Kemitorvet, Building 202, DK-2800 Kgs. Lyngby, Denmark.

Listeria monocytogenes is a potentially fatal foodborne pathogen that can be found in various ready-to-eat (RTE) products. It tolerates adverse conditions such as high salt concentrations and refrigerated storage, thus, the elimination of the pathogen in food processing often relies on heat processing. The objective of this study was to create a model to predict the effect of salt on heat tolerance of L. Read More

View Article and Full-Text PDF

Changes of avian influenza virus subtypes before and after vaccination in live poultry in Nanchang, China from 2016 to 2019.

Microbes Infect 2021 Jun 8:104848. Epub 2021 Jun 8.

The Collaboration Unit for Field Epidemiology of State Key Laboratory of Infectious Disease Prevention and Control, Jiangxi Provincial Key Laboratory of Animal-origin and Vector-borne Diseases, Nanchang Center for Disease Control and Prevention. Nanchang 330038, PR China. Electronic address:

We investigated fluctuations in the detection rates of avian influenza virus (AIV) subtypes H5, H7, and H9 in live bird markets (LBMs) in Nanchang city, Chinese province Jiangxi, before and after the Chinese nationwide AIV vaccination campaign against highly pathogenic (HP) AIV subtype H5 and H7. Samples were tested for nucleic acid of type A avian influenza virus by real-time reverse transcription polymerase chain reaction technology. The H5, H7 and H9 subtypes of influenza viruses were further classified for the positive results. Read More

View Article and Full-Text PDF

Epigenetic modification cooperates with Zeb1 transcription factor to regulate Bmp4 to promote chicken PGCs formation.

Gene 2021 Jun 8:145760. Epub 2021 Jun 8.

Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, China; College of biotechnology, Jiangsu University of science and technology, China. Electronic address:

BMP4 is the critical gene of primordial germ cell formation in mammal, however, the mechanism of PGCs formation in chicken still unknown. In this research, we compared the evolution relationship of different species. Although the protein sequence is highly conservative between mouse, human and chicken, promotors vary among avian and mammal species. Read More

View Article and Full-Text PDF

An in vitro model of avian skin reveals evolutionarily conserved transcriptional regulation of epidermal barrier formation.

J Invest Dermatol 2021 Jun 8. Epub 2021 Jun 8.

Skin Biology Laboratory, Department of Dermatology, Medical University of Vienna, Vienna, Austria. Electronic address:

The function of the skin as a barrier against a dry environment evolved in a common ancestor of terrestrial vertebrates such as mammals and birds. However, it is unknown which elements of the genetic program of skin barrier formation are evolutionarily ancient and conserved. Here, we determined the transcriptomes of chicken keratinocytes grown in monolayer culture and in an organotypic model of avian skin. Read More

View Article and Full-Text PDF

Experimental transmission of Leishmania (Mundinia) parasites by biting midges (Diptera: Ceratopogonidae).

PLoS Pathog 2021 Jun 11;17(6):e1009654. Epub 2021 Jun 11.

Department of Parasitology, Faculty of Science, Charles University, Prague, Czech Republic.

Leishmania parasites, causative agents of leishmaniasis, are currently divided into four subgenera: Leishmania, Viannia, Sauroleishmania and Mundinia. The recently established subgenus Mundinia has a wide geographical distribution and contains five species, three of which have the potential to infect and cause disease in humans. While the other Leishmania subgenera are transmitted exclusively by phlebotomine sand flies (Diptera: Psychodidae), natural vectors of Mundinia remain uncertain. Read More

View Article and Full-Text PDF

The environmental and economic trade-offs of using composted or stockpiled manure as partial substitute of synthetic fertilizer.

J Environ Qual 2021 Jun 11. Epub 2021 Jun 11.

Centre for Agriculture and the Bioeconomy, Queensland University of Technology, 2 George St, Brisbane, QLD, 4000, Australia.

Manure generated from livestock production could represent an important source of plant nutrients in substitution of synthetic fertilizer. To evaluate the sustainability of partially substituting synthetic fertilizer with soil organic amendments (OA) in horticulture, an economic and greenhouse gas (GHG) budget was developed. The boundary for analysis included manure processing (stockpiling versus composting), transport and spreading of manure and compost (feedlot and chicken) in intensively cultivated horticultural fields. Read More

View Article and Full-Text PDF

Effect of the physicochemical properties of zinc oxide sources on their bioavailability in broilers.

Br Poult Sci 2021 Jun 11. Epub 2021 Jun 11.

UMR BOA, INRAE, Université de Tours, F-37380, Nouzilly, France.

The bioavailability of a trace mineral source is related to its intestinal solubility (bioaccessibility), which in turn is determined by its physicochemical properties. It is still not clear which characteristics are more relevant in affecting solubility and bioavailability of mineral sources. Zinc oxide (ZnO) is a common feed additive used to supplement zinc in the diet of monogastric animals. Read More

View Article and Full-Text PDF

Assessing evolutionary and developmental transcriptome dynamics in homologous cell types.

Dev Dyn 2021 Jun 11. Epub 2021 Jun 11.

DUW Zoology, University of Basel, Basel, Switzerland.

Background: During development, complex organ patterns emerge through the precise temporal and spatial specification of different cell types. On an evolutionary timescale, these patterns can change, resulting in morphological diversification. It is generally believed that homologous anatomical structures are built - largely - by homologous cell types. Read More

View Article and Full-Text PDF

Effects of tetracycline antibiotics in chicken manure on soil microbes and antibiotic resistance genes (ARGs).

Environ Geochem Health 2021 Jun 10. Epub 2021 Jun 10.

College of Resources and Environmental Sciences, Southwest University, Chongqing, 400715, People's Republic of China.

China is the world's largest livestock and poultry breeding country, but also the largest use of veterinary antibiotics. When a large amount of chicken manure is applied to the soil, it will cause the number of antibiotic residues and resistant bacteria to increase, which will bring about the pollution of antibiotic resistance genes (ARGs) in the soil, and then increase the risk of environmental pollution and human health. Field experiments were conducted to study the changes of soil tetracycline antibiotic residues, resistant bacteria and resistance genes treated with different types and dosage of chicken manure (no chicken manure, (CK), low fresh chicken manure treatment (300 kg·667 m), high fresh chicken manure treatment (600 kg·667 m), low decomposed chicken manure treatment (300 kg·667 m) and high decomposed chicken manure treatment (600 kg·667 m)). Read More

View Article and Full-Text PDF

Chickens, Sex, and Revisiting an Old Paradigm.

Endocrinology 2021 Jul;162(7)

Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3168, Australia.

View Article and Full-Text PDF

Tandem Mass Tag-Based Quantitative Proteomic Analysis of Chicken Bursa of Fabricius Infected With Reticuloendotheliosis Virus.

Front Vet Sci 2021 25;8:666512. Epub 2021 May 25.

College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.

Reticuloendotheliosis virus (REV) is a type C avian retrovirus that causes immunosuppression, dwarf syndrome, and lymphoma in infected hosts. In this study, we used tandem mass tag (TMT) labeling and liquid chromatography-tandem mass spectrometry (LC-MS/MS) to characterize protein alterations in chicken bursa of Fabricius, before and after REV infection at 7, 14, 21, and 28 days. Our data showed that 1,127, 999, 910, and 1,138 differentially expressed proteins were significantly altered at 7, 14, 21, and 28 days after REV infection, respectively. Read More

View Article and Full-Text PDF

Functional Amino Acids in Pigs and Chickens: Implication for Gut Health.

Front Vet Sci 2021 25;8:663727. Epub 2021 May 25.

METEX NOOVISTAGO, Paris, France.

In pigs and broiler chickens, the gastrointestinal tract or gut is subjected to many challenges which alter performance, animal health, welfare and livability. Preventive strategies are needed to mitigate the impacts of these challenges on gut health while reducing the need to use antimicrobials. In the first part of the review, we propose a common definition of gut health for pig and chickens relying on four pillars, which correspond to the main functions of the digestive tract: (i) epithelial barrier and digestion, (ii) immune fitness, (iii) microbiota balance and (iv) oxidative stress homeostasis. Read More

View Article and Full-Text PDF

Thermal Image Scanning for the Early Detection of Fever Induced by Highly Pathogenic Avian Influenza Virus Infection in Chickens and Ducks and Its Application in Farms.

Front Vet Sci 2021 25;8:616755. Epub 2021 May 25.

Department of Anatomy, College of Veterinary Medicine, Konkuk University, Seoul, South Korea.

Highly pathogenic avian influenza (HPAI) is considered as one of the most devastating poultry diseases. It is imperative to immediately report any known outbreaks to the World Organization for Animal Health. Early detection of infected birds is of paramount importance to control virus spread, thus minimizing the associated economic loss. Read More

View Article and Full-Text PDF

Antigenic and Molecular Characterization of Virulent Newcastle Disease Viruses Circulating in Ethiopia Between 1976 and 2008.

Vet Med (Auckl) 2021 4;12:129-140. Epub 2021 Jun 4.

Institute of Infectology, Friedrich-Loeffler-Institut, Greifswald, Germany.

Introduction: Newcastle disease virus (NDV) cultures held in the isolate collections in Ethiopia between 1976 and 2008 were not characterized using biological and molecular techniques. The already characterized NDV isolates belonged to genotype VI but the genetic nature of previously collected isolates, which could shade light on the history of introduction into the country and their evolutionary relationships, were not established.

Methods: A total of 14 NDVs (11 obtained from outbreak cases in chickens and three commercial vaccinal strains used in the country) were inoculated into specific pathogen free (SPF) embryonated chicken eggs (ECE). Read More

View Article and Full-Text PDF

A rare case of allergic fungal rhinosinusitis in Indonesian elderly: A case report and diagnostic procedure.

Ann Med Surg (Lond) 2021 Jun 21;66:102400. Epub 2021 May 21.

Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medicine, Universitas Airlangga - Dr. Soetomo General Academic Hospital, Surabaya, Indonesia.

Background: Allergic fungal rhinosinusitis (AFRS) is a rare case.

Case Presentation: A 63-year-old-man presented right nasal congestion one year ago. There was a polyp in the right nasal cavity supported CTScan showed a solid mass with central hyperattenuating of ±8. Read More

View Article and Full-Text PDF

Differential response of oxidative and glycolytic skeletal muscle fibers to mesterolone.

Sci Rep 2021 Jun 10;11(1):12301. Epub 2021 Jun 10.

Department of Anatomy, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan.

Oxidative and glycolytic muscle fibers differ in their ultrastructure, metabolism, and responses to physiological stimuli and pathological insults. We examined whether these fibers respond differentially to exogenous anabolic androgenic steroids (AASs) by comparing morphological and histological changes between the oxidative anterior latissimus dorsi (ALD) and glycolytic pectoralis major (PM) fibers in adult avian muscles. Adult female White Leghorn chickens (Gallus gallus) were randomly divided into five groups: a vehicle control and four mesterolone treatment groups (4, 8, 12, and 16 mg/kg). Read More

View Article and Full-Text PDF

The umami receptor T1R1-T1R3 heterodimer is rarely formed in chickens.

Sci Rep 2021 Jun 10;11(1):12318. Epub 2021 Jun 10.

Laboratory of Functional Anatomy, Faculty of Agriculture, Kyushu University, Fukuoka, Japan.

The characterization of molecular mechanisms underlying the taste-sensing system of chickens will add to our understanding of their feeding behaviors in poultry farming. In the mammalian taste system, the heterodimer of taste receptor type 1 members 1/3 (T1R1/T1R3) functions as an umami (amino acid) taste receptor. Here, we analyzed the expression patterns of T1R1 and T1R3 in the taste cells of chickens, labeled by the molecular markers for chicken taste buds (vimentin and α-gustducin). Read More

View Article and Full-Text PDF

"Chicken-Wing" Undersizing for "Sandwich" Left Atrial Appendage Closure Technique: An Image of Caution.

JACC Cardiovasc Interv 2021 Jun;14(11):e127-e128

Department of Coronary and Structural Heart Diseases, National Institute of Cardiology, Warsaw, Poland.

View Article and Full-Text PDF

Development of new strategy combining heat treatment and phage cocktail for post-contamination prevention.

Food Res Int 2021 Jul 18;145:110415. Epub 2021 May 18.

Department of Food and Animal Biotechnology, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea; Department of Agricultural Biotechnology, College of Agriculture and Life Science, Seoul National University, Seoul 08826, Republic of Korea; Center for Food Bioconvergence, Seoul National University, Seoul 08826, Republic of Korea. Electronic address:

Heat treatment is an effective method for ensuring food safety and quality by controlling microbial contamination. However, food poisoning outbreaks have continuously occurred in heat-treated products due to improper thermal treatment and/or post-contamination of foodborne pathogens. This study proposes a novel strategy combining thermostable bacteriophages with thermal processing of food production plants to control foodborne pathogens and even bacterial contamination. Read More

View Article and Full-Text PDF

Protective effects of selenium yeast against cadmium-induced necroptosis through miR-26a-5p/PTEN/PI3K/AKT signaling pathway in chicken kidney.

Ecotoxicol Environ Saf 2021 Jun 8;220:112387. Epub 2021 Jun 8.

College of Biological and Pharmaceutical Engineering, Jilin Agricultural Science and Technology College, Jilin 132101, PR China. Electronic address:

Cadmium (Cd) is a ubiquitous environmental pollutant of increasing worldwide concern to both humans and animals. Selenium yeast (Se-Y) is an organic selenium source that has been shown an advantage in antagonizing Cd-induced liver necroptosis in chicken. Herein, we described the discovery path of Se-Y antagonism in Cd-induced renal necroptosis in chicken through targeting miR-26a-5p/PTEN/PI3K/AKT signaling pathway. Read More

View Article and Full-Text PDF

Adjuvant effects of bacterium-like particles in the intranasal vaccination of chickens against Newcastle disease.

Vet Microbiol 2021 Jun 4;259:109144. Epub 2021 Jun 4.

College of Veterinary Medicine, Jilin Agricultural University, Changchun, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, China; Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, China. Electronic address:

Given that the respiratory mucosa is an important site for the initial replication of Newcastle disease virus (NDV), developing intranasal vaccines for chickens is an effective strategy to protect against this disease. The low immunogenicity of inactivated NDV administered by the mucosal route motivated us to identify a safe and potent adjuvant. Previous studies have shown that bacterium-like particles (BLPs), which serve as mucosal adjuvants, induce effective local and systemic immune responses through TLR2 signaling in both mammals and humans. Read More

View Article and Full-Text PDF

On-site generated peroxy acetic acid (PAA) technology reduces Salmonella and Campylobacter on chicken wings.

Poult Sci 2021 Apr 21;100(7):101206. Epub 2021 Apr 21.

Department of Poultry Science, University of Georgia, Athens, GA 30602. Electronic address:

Peroxyacetic acid (PAA) is a widely used antimicrobial during poultry processing that requires to be shipped in a concentrated solution, stored under hazardous conditions and diluted for use. On-site PAA generation using nonhazardous ingredients can help eliminate transportation and storage issues at the processing plant and reduce the risk of occupational hazards. The objective of the proposed research was to 1) evaluate the efficacy of on-site generated PAA in reducing Salmonella and Campylobacter populations compared to the commercially available PAA stock solutions and 2) to perform color measurements to evaluate any deviations between treatments. Read More

View Article and Full-Text PDF