Results 71 to 80 of about 28,413 (220)

Impact of Model Parameterisation and Variance Component Estimates on Genomic Predictions of Carcass Traits in Montana Composite Cattle

Journal of Animal Breeding and Genetics, Volume 143, Issue 3, Page 431-442, May 2026.
ABSTRACT This study evaluated the influence of variance component (VC) estimates, obtained from different models and two relationship matrices, pedigree‐based (BLUP) and genomic information‐based (ssGBLUP), on genomic predictions of carcass traits in Montana composite cattle.
Caroline Assis Almeida, Felipe Eguti de Carvalho, Flávia Cristina Bis, Rachel Santos Bueno Carvalho, Elisângela Chicaroni de Mattos, Rafael Espigolan, Joanir Pereira Eler, Luís Telo da Gama, Fernando Baldi, José Bento Sterman Ferraz   +9 more
wiley   +1 more source

Quantitative trait locus affecting birth weight on bovine chromosome 5 in a F2 Gyr x Holstein population

Genetics and Molecular Biology, 2005
Segregation between a genetic marker and a locus influencing a quantitative trait in a well delineated population is the basis for success in mapping quantitative trait loci (QTL). To detect bovine chromosome 5 (BTA5) birth weight QTL we genotyped 294 F2
Gustavo Gasparin, Marcelo Miyata, Luiz Lehmann Coutinho, Mário Luiz Martinez, Marcos Vinícius G. Barbosa da Silva, Marco Antônio Machado, Ana Lúcia Campos, Luciana Correia de Almeida Regitano   +7 more
doaj   +1 more source

Ascertainment Bias in Cattle SNP Arrays and Implications for Multibreed Genomic Predictions

Animal Genetics, Volume 57, Issue 2, April 2026.
ABSTRACT Ascertainment bias of SNP for genotyping arrays, where markers are discovered largely in one breed then used to genotype other breeds, can affect scaling and dispersion of genomic breeding values in multibreed genomic evaluations. Detecting and addressing this bias is crucial for robust genetic analyses.
Christie L. Warburton, Ben J. Hayes
wiley   +1 more source

Genomic Variants Associated With Oocyte and Embryo Production in Dairy Gir Cattle

Animal Genetics, Volume 57, Issue 2, April 2026.
ABSTRACT The use of in vitro fertilization protocols associated with genomic selection increases genetic gain in dairy cattle. The aims of this study were to uncover genetic variants in a specific interval on BTA7 and to investigate their effects on the number of oocytes and embryos in dairy Gir.
Renata de Fatima Bretanha Rocha, Haniel Cedraz de Oliveira, Marta Fonseca Martins, Marco Antônio Machado, João Claudio do Carmo Panetto, Marcos Vinícius Barbosa da Silva, Simone Eliza Facioni Guimarães   +6 more
wiley   +1 more source

Comparison of Bos Taurus-Bos Indicus Breed Crosses with Straightbred Bos Indicus Breeds of Cattle for Maternal and Individual Traits

Journal of Animal Science, 1985
Data were analyzed to compare crossbred females produced by crossing exotic Angus and Red Poll males to indigenous Ankole, Boran and Small East African Zebu (Zebu) females with straightbred females of the Ankole, Boran and Zebu breeds at the Ruhengere Field Station in the Ankole District of Southwestern Uganda. Progeny of the straightbred and crossbred
Trail, J.C.M., Gregory, K.E., Marples, H.J.S., Kakonge, J.   +3 more
openaire   +2 more sources

Forage Species and Nutrition Among Reintroduced Banteng (Bos javanicus d'Alton, 1823) in Salakphra Wildlife Sanctuary and Khao Kiew–Khao Chompoo Wildlife Sanctuary, Thailand

Ecology and Evolution, Volume 16, Issue 4, April 2026.
Dietary management is an important factor affecting the health and survival of critically endangered wildlife. The natural habitat showed a significant seasonal difference which was also higher than in introduced habitat. Reintroduced banteng exhibit dietary flexibility and adaptability to different natural habitats.
Wasinee Thepapichaikul, Rattanawat Chaiyarat, Roschong Boonyarittichaikij, Phanwimol Tanhan, Seree Nakbun   +4 more
wiley   +1 more source

Wolf Presence Disrupts Seasonal Variation in Hair Cortisol Among Free‐Ranging Beef Cattle

Ecology and Evolution, Volume 16, Issue 4, April 2026.
Predators exert indirect effects on prey populations beyond direct predation, but how predator reintroduction restructures prey physiology remains poorly understood. Using hair cortisol analysis in cattle exposed versus unexposed to wolves, we found that wolf presence disrupted normal seasonal cortisol regulation patterns.
Christina M. Nord, Alexander J. Pritchard, Rosemary A. Blersch, Brenda McCowan, Jessica J. Vandeleest, Kenneth W. Tate, Tina L. Saitone   +6 more
wiley   +1 more source

Sequenciamento e análise dos genes das subunidades alfa e beta do hormônio folículo estimulante de bovino (Bos taurus indicus) Sequencing and analysis of subunits alpha and beta of the follicle stimulating hormone from bovine (Bos taurus indicus)

Ciência Animal Brasileira, 2008
<span><p align="justify">Este trabalho relata uma clonagem e seqüenciamento das subunidades alfa e beta do hormônio folículo estimulante de <em>Bos taurus indicus.
Luci Sayori Murata, Fernando Araripe Torres, Lidia Pepe Moraes, Ângela Patrícia Santana   +3 more
doaj  

INDICADORES METABÓLICOS SANGUÍNEOS DE GENOTIPOS LECHEROS EN PASTOREO DE LA PROVINCIA DE NAPO-ECUADOR

La Granja: Revista de Ciencias de la Vida, 2017
El objetivo de este trabajo fue evaluar el metabolismo energético/proteico en sangre de vacas lecheras de cuatro genotipos de primera lactancia en condiciones de pastoreo en el cantón Arosemena Tola, Napo, Ecuador.
Orlando Roberto Quinteros Pozo, Julio Cesar Vargas Burgos, Ivana Barbona, Pablo Roberto Manrini   +3 more
doaj   +1 more source

Prediction of mortality and conception rates of beef breeding cattle in northern Australia [PDF]

, 2012
In current simulation packages for the management of extensive beef-cattle enterprises, the relationships for the key biological rates (namely conception and mortality) are quite rudimentary.
Mayer, D. G., McKeon, G. M., Moore, A. D.   +2 more
core   +2 more sources