Results 41 to 50 of about 5,693 (181)

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

Journal of Animal Breeding and Genetics, EarlyView.
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

Genetic Parameters of Methane Emission, Feed Efficiency, Feeding Behaviour, and Growth Traits in Beef Cattle

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Climate change has intensified the need to reduce greenhouse gas emissions, particularly methane (CH4) from enteric fermentation. Genetic selection has emerged as a promising mitigation strategy; however, studies on Bos taurus indicus , especially Nellore cattle, remain limited.
J. A. Silva, J. P. S. Valente, L. F. M. Mota, G. R. D. Rodrigues, T. L. S. Soares, J. O. S. Marcatto, A. M. Pelaez, F. M. Monteiro, R. C. Canesin, L. G. Albuquerque, M. E. Z. Mercadante   +10 more
wiley   +1 more source

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

Journal of Animal Breeding and Genetics, EarlyView.
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

Ethological behavior of Bos taurus, Bos indicus, and Caqueteño Creole cattle in three tree cover systems of Brachiaria decumbens paddocks at the Amazon foothills in Colombia

Revista de Ciências Agroveterinárias, 2022
The study was conducted at the Amazon Research Center CIMAZ - MACAGUAL of the University of Amazonia, Colombia, with a tropical rain forest climate (Af).
Sandra Milena Londoño-Paéz, Jose Alfredo Orjuela-Chaves, Faver Álvarez-Carrillo, Juan Carlos Suarez-Salazar, Lucena Vasquez-Gamboa, Jhoyner Felipe Ortiz-Meneses, Gustavo Adolfo Celis Parra   +6 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

AVALIAÇÕES DA PARASITEMIA, DO HEMATÓCRITO E DOS NÍVEIS BIOQUÍMICOS SÉRICOS, DE BEZERROS NELORE (Bos indicus), INOCULADOS COM ISOLADOS DE Babesia bigemina (Smith & Kilborne, 1893) DAS REGIÕES SUL, SUDESTE, CENTRO-OESTE, NORDESTE E NORTE DO BRASIL

Ciência Animal Brasileira, 2006
Avaliaram-se a parasitemia, o hematócrito e os níveis séricos de bilirrubina total, creatinina, uréia e colesterol de bezerros Nelore (Bos indicus) inoculados com isolados de Babesia bigemina das cinco regiões fisiográficas do Brasil. Constatou-se que os
Dirson Vieira, Carla Lopes Mendonça, Aguemi Kohayagawa, Cláudio Roberto Madruga, Maria Aparecida Schenki, Raul Kessler   +5 more
doaj   +1 more source

Livestock grazing boosts plant diversity in the Greater Serengeti–Mara Ecosystem

Ecological Applications, Volume 36, Issue 2, March 2026.
Abstract Intensifying land use is a global threat to biodiversity, and livestock grazing—occupying 26% of terrestrial land—is one of such threats. Designated protected areas are one of the key conservation strategies to halt biodiversity loss, but their effectiveness is debated, in part because of data shortage at relevant spatial scales (>1 ha).
Yustina Kiwango, Rob Venderbos, Yuhong Li, Han Olff, Michiel P. Veldhuis   +4 more
wiley   +1 more source

Treatments to Optimize the Use of Artificial Insemination and Reproductive Efficiency in Beef Cattle under Tropical Environments

Veterinary Medicine International, 2011
Bos indicus cattle, the preferred genetic group in tropical climates, are characterized by having a lower reproductive efficiency than Bos taurus. The reasons for the poorer reproductive efficiency of the Bos indicus cows include longer lengths of ...
Ocilon Gomes de Sá Filho, José Luiz Moraes Vasconcelos   +1 more
doaj   +1 more source

Development of eNA Sampling for Early Detection of Pathogens in On‐Farm Water Sources

Environmental DNA, Volume 8, Issue 2, March/April 2026.
We compare four water‐sampling methods for detecting microbial and viral eNA in livestock troughs and show all approaches effectively recover community profiles, supporting flexible, field‐ready surveillance of livestock pathogens. ABSTRACT Early detection of livestock pathogens is critical for mitigating risk and implementing timely control or ...
Maxine P. Piggott, Allyson Malpartida
wiley   +1 more source

Population Structure, and Selection Signatures Underlying High-Altitude Adaptation Inferred From Genome-Wide Copy Number Variations in Chinese Indigenous Cattle

Frontiers in Genetics, 2020
Copy number variations (CNVs) have been demonstrated as crucial substrates for evolution, adaptation and breed formation. Chinese indigenous cattle breeds exhibit a broad geographical distribution and diverse environmental adaptability. Here, we analyzed
Yaran Zhang, Yan Hu, Xiuge Wang, Qiang Jiang, Han Zhao, Jinpeng Wang, Zhihua Ju, Liguo Yang, Yaping Gao, Xiaochao Wei, Jiachen Bai, Yang Zhou, Jinming Huang, Jinming Huang   +13 more
doaj   +1 more source