Results 71 to 80 of about 123,696 (198)

Risk factors related to resistance to Rhipicephalus (Boophilus) microplus and weight gain of heifers

Semina: Ciências Agrárias, 2015
The aim of the present study was to evaluate the influence of age and genetics in dairy heifers on resistance to the cattle tick Rhipicephalus (Boophilus) microplus and correlate these parameters with weight gain.
Jenevaldo Barbosa da Silva , José Diomedes Barbosa , Adivaldo Henrique Fonseca   +2 more
doaj   +1 more source

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

Journal of Animal Breeding and Genetics, Volume 143, Issue 4, Page 496-507, July 2026.
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

Fertility of Bos indicus and Bos indicus X Bos taurus crossbred cattle after estrus synchronization

, 2013
Compares estrus response, estrus response interval and subsequent pregnancy rate in Bos indicus and Bos indicus X Bos taurus cross cows and heifers following estrus synchronization with prostaglandin F2 (PGF2X (a), a progesterone releasing intravaginal ...
Tegegne, Azage, Warnick, A.C., Ketema, H., Mukasa-Mugerwa, E.   +3 more
core   +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

Influence of MC1R Gene Variants on Coat Color of Indicine Cattle Breeds

Animal Genetics, Volume 57, Issue 3, June 2026.
ABSTRACT Indicine cattle display a broad range of coat colors, representing a relevant and breed‐defining trait required for registration in breeder association. Among the genes involved in pigmentation, MC1R stands out for modulating the synthesis of melanin‐related proteins and remains poorly explored in indicine cattle breeds. Therefore, we aimed to
Silel V. S. A. Maciel, Ingrid P. P. Oliveira, Beatriz B. Senes, Carolaine J. S. Santana, Jackeline S. Alves, Edilane A. da Silva, Fernando O. Franco, Bárbara C. F. da Silva, Fernando C. Cairo, Frederico C. Cairo, Aníbal E. Vercesi‐Filho, Raphael B. Costa, Gregório M. F. de Camargo   +12 more
wiley   +1 more source

Lures do not increase box‐trapping success of an endangered felid in South Texas

Wildlife Society Bulletin, Volume 50, Issue 2, June 2026.
We used a randomized design and linear regression to assess whether visual (compact disc [CD] and ribbon), and olfactory (musk and ocelot urine) lures would increase capture success of three mesocarnivores (ocelots [Leopardus pardalis], bobcats [Lynx rufus], and coyotes [Canis latrans]) with box traps baited with a live bird from December 2023 to April
Ashley M. Reeves, Landon R. Schofield, Alynn M. Martin, Aidan B. Branney, Lindsay A. Martinez, Georgia Harris, Meghan Murphy, Jason E. Sawyer   +7 more
wiley   +1 more source

DIVERSIDAD GENÉTICA ENTRE SUBPOBLACIONES RACIALES BOVINAS DE COSTA RICA

Agronomía Costarricense, 2015
El objetivo del estudio fue cuantificar la diversidad genética entre 16 subpoblaciones raciales bovinas de Costa Rica, con base en 1412 muestras de ADN bovino de todo el país, evaluadas mediante 18 marcadores microsatélites. El número promedio de alelos (
Marco Martínez, Bernardo Vargas, Juan Miguel Cordero, Idania Chacón, Bernal León   +4 more
doaj  

Cerebellar Abiotrophy in Nelore: First Report in Zebu Cattle (Bos taurus indicus)

Brazilian Journal of Veterinary Pathology, 2011
Cerebellar abiotrophy (CA) is a degenerative disorder of the central nervous system (CNS) that has been reported in humans and animals. In cattle, CA had been reported in Bos taurus taurus and crossbreed cattle.
Taismara S. Oliveira, Safira R. D. Lima, Ronaldo Furtini, Valquiria Bull, Érica A. Costa, Tatiane A. Paixão, Renato L. Santos   +6 more
doaj   +1 more source

Bos indicus cattle can maintain feed intake and fat reserves in response to heat stress better than Bos taurus cattle [PDF]

, 2004
Bos indicus cattle are better adapted to tropical conditions than Bos taurus breeds and in part this may be related to differences in lipid and carbohydrate metabolism during heat stress.
Barnes, A., Beatty, D., Pethick, D.W., Taylor, E., Dunshea, F.R.   +4 more
core  

Aspectos fisiológicos e reprodutivos de Bos taurus e Bos indicus: uma revisão comparativa [PDF]

A bovinocultura está em grande ascensão nas últimas décadas, impulsionada pela crescente demanda global de carne bovina e pelo avanço das tecnologias voltadas à produção animal.
Mareli Gomes, Maria Eduarda, Furtado Braga, Clauber, Costa Almeida, Marco Túlio, Fernandes Barrada, Maria Clara   +3 more
core   +2 more sources