Transl Anim Sci 2018 Sep 27;2(Suppl 1):S19-S21. Epub 2018 Sep 27.
Department of Animal and Range Sciences, New Mexico State University, Las Cruces, NM.
Vet Surg 2021 May 1. Epub 2021 May 1.
Department of Clinical Sciences, College of Veterinary Medicine, Oregon State University, Corvallis, Oregon, USA.
Objective: To assess outcomes and behavior changes associated with bilateral laparoscopic ovariectomies.Study Design: Retrospective study.Sample Population: Fifty-one equids. Read More
Animals (Basel) 2021 Apr 1;11(4). Epub 2021 Apr 1.
Departamento Produccion y Sanidad Animal, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, C/Tirant lo Blanc, 7, 46115 Alfara del Patriarca, Spain.
Currently, there is an intense effort to find an alternative hormone to eCG to induce ovulation after estrus synchronization treatments in sheep. One of the proposed alternatives is based on the use of hCG, but the results are controversial since fertility rates are commonly affected. The present study aims to evaluate, therefore, the adequacy of hCG in protocols for the synchronization of estrus and ovulation. Read More
J Integr Neurosci 2021 Mar;20(1):77-85
College of Life Sciences, Qufu Normal University, Qufu, 273165 Shandong, P. R. China.
The social behavior mechanisms have not been thoroughly reported in the solitary female striped dwarf hamster (). In this study, the handling bag test and neutral arena measurements were used to detect the changes of aggression in the face of rivals of different genders of wild striped dwarf hamsters. We found that female hamsters had the highest aggressive performance in proestrus, followed by estrus, and the lowest in metestrus and the dioestrus, and the increased aggression during the proestrus or estrus period was low-intensity aggression such as intimidation, shock, boxing and counterattack, or even ritualized non-harmful behaviors to drive away opponents. Read More
Endocrinology 2021 Apr 7. Epub 2021 Apr 7.
Centre for Neuroendocrinology & Department of Physiology, University of Otago, Dunedin, New Zealand.
Coordination of ovulation and behavior is critical to reproductive success in many species. During the female estrous cycle, the preovulatory gonadotropin surge occurs when ovarian follicles reach maturity and, in rodents, begins just before the daily onset of activity, ensuring ovulation coincides with sex behavior. Timing of the surge relies on projections from the suprachiasmatic nucleus (SCN), the locus of the central circadian clock, to hypothalamic circuits that regulate gonadotropin secretion. Read More
Anim Reprod 2021 Jan 6;17(4):e20200526. Epub 2021 Jan 6.
Núcleo de Pesquisa e Conservação de Cervídeos (NUPECCE), Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista (UNESP), Jaboticabal, SP, Brasil.
Deer are sensitive to stressful stimuli by handling and their reproductive physiology could be altered by these procedures, making it necessary to develop less invasive protocols for ART. Melengestrol acetate (MGA), a synthetic progestin administered orally, appears as an alternative for estrous synchronization protocols (ESP), such as reported in cattle. Firstly, we compared two MGA doses (0. Read More