Results 21 to 30 of about 25,627 (245)

High throughput analysis of MHC class I and class II diversity of Zambian indigenous cattle populations

HLA, Volume 101, Issue 5, Page 458-483, May 2023., 2023
The classical MHC class I and class II molecules play key roles in determining the antigenic‐specificity of CD8+ and CD4+ T‐cell responses—as such characterisation of the repertoire of MHCI and MHCII allelic diversity is fundamental to our ability to understand, and potentially, exploit how genetic diversity influences the outcome of immune responses ...
Isaac Silwamba, Deepali Vasoya, Martin Simuunza, Thomas Tzelos, King S. Nalubamba, Edgar Simulundu, Christina Vrettou, Geoffrey Mainda, Mick Watson, John Bwalya Muma, Timothy Connelley   +10 more
wiley   +1 more source

Application of gender‐ablated semen during timed artificial insemination following oestrous synchronization in dairy and beef cows

Reproduction in Domestic Animals, Volume 58, Issue 4, Page 529-536, April 2023., 2023
Abstract The objectives of this study were to compare oestrous synchronization expression and conception rate following timed artificial insemination (TAI) with frozen–thawed X‐sexed or unsexed semen in dairy and beef cows. For this study, 227 cows (dairy, n = 130 and beef, n = 97) were assigned to a 9‐day Ovsynch + controlled intravaginal drug release
Thabang Luther Magopa, Masindi Lottus Mphaphathi, Thendo Mulaudzi   +2 more
wiley   +1 more source

Tolerância ao calor em bovinos das raças Nelore branco, Nelore vermelho e Pantaneira [PDF]

Revista Brasileira de Saúde e Produção Animal, 2014
A identificação de parâmetros/ métricas associados à adaptação ambiental é uma das principais tendências e desafios da pecuária mundial. Desta forma, o objetivo deste trabalho foi avaliar as características de tolerância ao calor de bovinos da raça Nelore e Pantaneiro no ecossistema do Pantanal matogrossense no pico de calor da região.
Barbosa, Bruna Rocha Passos, Santos, Sandra Aparecida, Abreu, Urbano Gomes Pinto de, Egito, Andrea Alves, Comastri Filho, José Aníbal, Juliano, Raquel Soares, Paiva, Samuel Rezende, McManus, Concepta   +7 more
openaire   +4 more sources

Effect of Different Protocols of Fixed‐Time Artificial Insemination on Mucus, Ovarian Size, and Pregnancy of Mixed‐Breed Cows in the Humid Tropics of Peru

Veterinary Medicine International, Volume 2023, Issue 1, 2023., 2023
The objective of the research was to evaluate three synchronization protocols for fixed‐time artificial insemination (FTAI) in Bos indicus with Bos taurus crossbred cows. Forty‐five cows of 5 ± 1.6 years were selected. The Jsynch treatment consisted of the application of an intravaginal device plus benzoate; on day 8, the device was removed and PGF2α ...
Clavel Diaz-Quevedo, Alonso Ramírez García, Lenin Torres Bernal, Jorge Cáceres Coral, Gustavo Ampuero Trigoso, José Américo Saucedo-Uriarte, Sumanta Nandi   +6 more
wiley   +1 more source

Heat tolerance of Nelore, Senepol x Nelore and Angus x Nelore heifers in the southeast region of Brazil

South African Journal of Animal Science, 2008
The Brazilian beef industry has experienced an increase in the utilization of adapted and non-adaptedBos taurus breeds in crossbreeding systems. In spite of this, little is known about the adaptability of these groups and of their crossbred progeny when raised in a tropical climate.
Ribeiro, A.R.B., Alencar, M.M., Freitas, A.R., Regitano, L.C.A., Oliveira, M.C.S., Ibelli, A.M.G.   +5 more
openaire   +5 more sources

Characterization of novel lncRNA muscle expression profiles associated with meat quality in beef cattle

Evolutionary Applications, Volume 15, Issue 4, Page 706-718, April 2022., 2022
Abstract The aim of this study was to identify novel lncRNA differentially expressed (DE) between divergent animals for beef tenderness and marbling traits in Nellore cattle. Longissimus thoracis muscle samples from the 20 most extreme bulls (of 80 bulls set) for tenderness, tender (n = 10) and tough (n = 10) groups, and marbling trait, high (n = 10 ...
Maria Malane Magalhães Muniz, Larissa Fernanda Simielli Fonseca, Daiane Cristina Becker Scalez, Aroa Suarez Vega, Danielly Beraldo dos Santos Silva, Jesus Aparecido Ferro, Artur Loyola Chardulo, Fernando Baldi, Angela Cánovas, Lucia Galvão de Albuquerque   +9 more
wiley   +1 more source

Parâmetros genéticos em características morfológicas de bovinos Nelore

Boletim de Indústria Animal, 2014
Este trabalho apresenta os resultados da avaliação morfológica linear, através de notas, atribuídas durante a apreciação individual de bovinos da raça Nelore com idade média de 378 dias, ao final da prova de ganho de peso, realizada na Estação
Fausto Pereira Lima, Luiz Martins Bonilha Neto, Alexander Geoerge Razook, Laércio José Pacola, Leopoldo Andrade de Figueiredo, Aristeu Mendes Peixoto   +5 more
doaj   +8 more sources

Estudo de sistemas polimórficos em bovinos de raça Nelore (Bos taurus indicus L.) associados à produção de carne. II. Transferrinas: peso e ganho de peso de animais submetidos a teste de performance e circunferência escrotal

Boletim de Indústria Animal, 2013
Uma amostra de bovinos machos da raça Nelore, submetida a teste de performance, pertencente à Estação Experimental de Zootecnia de Sertãozinho, SP, foi analisada com o objetivo de estudar as freqüências observadas para os tipos de transferrinas ...
Luciano Ricardo Marcondes da Silva, Marcos Vinícius Gualberto Barbosa da Silva, Leopoldo Andrade de Figueiredo, Alexander George Razook, Joslaine Noelly dos Santos Gonçalves, Wanderley Lima Guidi, Laércio José Pacola   +6 more
doaj   +8 more sources

Resveratrol enhanced mitochondrial recovery from cryopreservation‐induced damages in oocytes and embryos

Reproductive Medicine and Biology, Volume 20, Issue 4, Page 419-426, October 2021., 2021
Cryopreservation‐induced damage in embryos may be ameliorated by an activation of mitochondrial synthesis and degeneration. Abstract Background Mitochondria play a crucial role in nuclear maturation, fertilization, and subsequent embryo development. Cryopreservation is an important assisted reproductive technology that is used worldwide for humans and ...
Hisataka Iwata
wiley   +1 more source

Pelvimetria em vacas Nelore

Brazilian Journal of Veterinary Research and Animal Science, 2003
Mensuracoes corporeas externas, pelvicas externas e internas foram realizadas in vivo em 142 femeas de bovinos da raca Nelore, utilizando regua padrao e pelvimetro de Rice. As medias e os respectivos desvios padrao para as mensuracoes corporeas foram: peso 390,19 ± 45,23 kg; perimetro toracico 174 ± 8,60 cm; altura de cernelha 129 ± 4,10 cm ...
Oliveira, Priscila Carvalho de, Bombonato, Pedro Primo, Balieiro, Júlio César de Carvalho   +2 more
openaire   +3 more sources