Results 101 to 110 of about 4,192 (210)

Aspectos relacionados à precocidade sexual em bovinos machos da raça Nelore, PO

Brazilian Archives of Biology and Technology, 1999
O estudo foi desenvolvido em 79 bovinos machos da raça Nelore, PO, de dez a 16 meses de idade. Em todos os animais foram medidas a circunferência escrotal (CE), a concentração de testosterona (Testo) e o aparecimento dos primeiros espermatozoides no ...
Antonio E. D. Feliciano Silva, Maria M. Unanian, Alzira Roza e Silva   +2 more
doaj   +1 more source

Multidisciplinary Evaluation of a 10‐Year Restoration Program for Two Endangered Atlantic Salmon (Salmo salar) Populations

Evolutionary Applications, Volume 19, Issue 7, July 2026.
ABSTRACT Supportive breeding programs are widely implemented to counteract demographic collapse in threatened populations. Their long‐term success, however, depends on maintaining genetic diversity while ensuring that released individuals contribute effectively to wild populations.
Louarn Fauchet, Anne‐Laure Ferchaud, Jean‐Christophe Guay, Jean‐Sébastien Moore, Nicolas Derôme, Julien April, Louis Bernatchez   +6 more
wiley   +1 more source

Novel genetic polymorphisms in caprine GPR54 gene associated with reproductive functions

Indian Journal of Animal Sciences, 2014
The objective of this study was to characterize caprine GPR54 gene, a key mediator of molecular mechanism of reproduction (puberty and prolificacy) in mammals.
A MAITRA, REKHA SHARMA, SONIKA AHLAWAT, M S TANTIA   +3 more
doaj   +1 more source

The Forgotten Pink Salmon in the Laurentian Great Lakes: An Unexpected Invasion With Insights for Three Oceans

Fish and Fisheries, Volume 27, Issue 4, Page 813-830, July 2026.
ABSTRACT Introductions of species outside their native range, such as pink salmon (Oncorhynchus gorbuscha) in the Laurentian Great Lakes, can serve as unplanned experiments that provide new insights into ecological adaptation. We synthesize available information on the understudied Great Lakes pink salmon invasion and highlight how this case can inform
Joseph A. Langan, Peter J. Alsip, Hazem U. Abdelhady, Charles R. Bronte, Cory A. Goldsworthy, Matthew S. Kornis, Krista B. Oke, Eva B. Thorstad, Benjamin A. Turschak   +8 more
wiley   +1 more source

Evaluation of the effect of selection for sexual precocity on important traits of the nelore breed [PDF]

, 2022
A precocidade sexual em novilhas está relacionada com aumento na lucratividade do sistema de produção, principalmente por reduzir o ciclo de produção, promover maior viabilidade econômica ao sistema, aumentar a intensidade de seleção e maior ganho ...
Barbosa, Maria Mikaella Pacheco [UNESP]
core  

LKB1 alleviates high glucose‑ and high fat‑induced inflammation and the expression of GnRH and sexual precocity‑related genes, in mouse hypothalamic cells by activating the AMPK/FOXO1 signaling pathway. [PDF]

Mol Med Rep, 2022
Liu H, Guan L, Zhou Q, Huang H, Xu L.
europepmc   +1 more source

Contribution of Fat Adjustment to Residual Feed Intake Estimation in Beef Cattle

Journal of Animal Breeding and Genetics, Volume 143, Issue 4, Page 602-612, July 2026.
ABSTRACT Including fat thickness as a covariate in the regression model used to calculate residual feed intake (RFI) could help preserve carcass quality traits, such as marbling, flavour and juiciness, by accounting for variation in fat deposition.
Larissa Bordin Temp, Letícia Pereira, Marcos Jun‐Iti Yokoo, Cintia Righetti Marcondes, Roberto D. Sainz, Fernando Bussiman, Jorge Hidalgo, Daniela Lourenco, Fernando Baldi   +8 more
wiley   +1 more source

Pubertal development and hypothalamic–pituitary–gonadal axis are altered in male mice lacking Mecp2

Journal of Neuroendocrinology, Volume 38, Issue 7, July 2026.
Abstract Mutations in the MECP2 gene, encoding the epigenetic reader Methyl‐CpG binding protein 2, are the main cause of Rett syndrome, a rare neurodevelopmental disorder. Besides severe symptoms such as profound intellectual disability, loss of speech and motor skills, and epilepsy, loss of function of MECP2 has been associated with pubertal ...
Ana Martín‐Sánchez, Daniela Jiménez‐Díaz, Rafael Esteve‐Pérez, Alexandru Vasile‐Tudorache, Jordan E. Read, Sasha R. Howard, Carmen Agustín‐Pavón   +6 more
wiley   +1 more source

Effects of polymorphisms of LHR and FSHR genes on sexual precocity in a Bos taurus x Bos indicus beef composite population [PDF]

, 2008
The purpose of the present research was to investigate the effects of polymorphisms of luteinizing hormone receptor (LHR) and follicle-stimulating hormone receptor (FSHR) genes, evaluated by polymerase chain reaction-restriction fragment length ...
MARSON, E. P., MEIRELLES, F. V., BALIEIRO, J. C. C., ELER, J. P., FERRAZ, J. B. S.   +4 more
core  

Phenotypic relationship of female sexual precocity with production and reproduction traits in beef cattle using multivariate statistical techniques

Italian Journal of Animal Science, 2019
Multivariate statistical techniques were used to characterise the differences between precocious and non-precocious Nellore females regarding the phenotypic expression of various reproductive and productive traits.
Gerardo Alves Fernandes Júnior, Diogo Anastácio Garcia, Bruna Hortolani, Lucia Galvão de Albuquerque   +3 more
doaj   +1 more source