Results 31 to 40 of about 25,627 (245)

High throughput analysis of MHC‐I and MHC‐DR diversity of Brazilian cattle populations

HLA, Volume 98, Issue 2, Page 93-113, August 2021., 2021
The major histocompatibility complex (MHC) contains many genes that play key roles in initiating and regulating immune responses. This includes the polymorphic MHCI and MHCII genes that present epitopes to CD8+ and CD4+ T‐cells, respectively. Consequently, the characterisation of the repertoire of MHC genes is an important component of improving our ...
Deepali Vasoya, Priscila Silva Oliveira, Laura Agundez Muriel, Thomas Tzelos, Christina Vrettou, W. Ivan Morrison, Isabel Kinney Ferreira de Miranda Santos, Timothy Connelley   +7 more
wiley   +1 more source

Body composition and protein and energy net requeriments of steers of four genetic groups finished in feedlot [PDF]

, 2008
Objetivou-se neste estudo avaliar a composição corporal e as exigências para crescimento de bovinos de quatro grupos genéticos em confinamento. Utilizou-se a metodologia de abate comparativo, com delineamento inteiramente ao acaso, com quatro tratamentos:
ALENCAR, Maurício Mello de, ALLEONI, Guilherme Fernando, CRUZ, Geraldo Maria da, GOULART, Rodrigo Silva, LANNA, Dante Pazzanese Duarte, POTT, Edison Beno, TULLIO, Rymer Ramiz   +6 more
core   +2 more sources

Population structure, inbreeding and admixture in local cattle populations managed by community‐based breeding programs in Burkina Faso

Journal of Animal Breeding and Genetics, Volume 138, Issue 3, Page 379-388, May 2021., 2021
Abstract High‐throughput genomic markers provide an opportunity to assess important indicators of genetic diversity for populations managed in livestock breeding programs. While well‐structured breeding programs are common in developed countries, in developing country situations, especially in West Africa, on‐farm performance and pedigree recordings ...
Dominique Ouédraogo, Salifou Ouédraogo‐Koné, Bernadette Yougbaré, Albert Soudré, Bienvenue Zoma‐Traoré, Gábor Mészáros, Negar Khayatzadeh, Amadou Traoré, Moumouni Sanou, Okeyo Ally Mwai, Maria Wurzinger, Pamela A. Burger, Johann Sölkner   +12 more
wiley   +1 more source

Fatores que influenciam a textura da carne de novilhos Nelore e cruzados Limousin-Nelore [PDF]

Pesquisa Agropecuária Brasileira, 2003
O objetivo deste trabalho foi avaliar fatores que influenciam a textura da carne de novilhos Nelore e cruzados Limousin-Nelore. Cinqüenta novilhos, 25 Nelore e 25 Limousin-Nelore, foram aleatoriamente divididos em cinco grupos de 10 animais (cinco de cada grupo genético), para o abate seriado, até 204 dias. Os valores de temperatura e pH muscular foram
Heinemann, Riana Jordão Barrozo, Pinto, Marcos Franke, Romanelli, Pedro Fernando   +2 more
openaire   +7 more sources

Contribuição ao estudo da influência da libido e da capacidade de serviço sobre a taxa de concepção em nelore

Boletim de Indústria Animal, 2014
O objetivo deste trabalho foi o de avaliar a influência da libido e da capacidade de serviço nos índices de prenhez de um rebanho nelore, durante uma estação de monta de 63 dias.
Nelson Rafael Pineda, Paulo Fernando Lemos   +1 more
doaj   +4 more sources

Uso da promixalicina no controle de ecto e endoparasitas de bovinos

Pubvet, 2022
Objetivou-se avaliar neste trabalho, o efeito da Promixalicina para o controle de ecto e endoparasitas em bovinos Nelore ou anelorados em sistemas de pastejo, na região de Presidente Prudente/SP.
Marco Aurélio Factori, Gabriela de Campos Santos Lourenção, Daniela Seko Fernandes, Roque Sanchez Costa, Beatriz Aparecida da Silva Calixto, Stênio Clemente Paião Sitolino   +5 more
doaj   +1 more source

BIOPSIAS LUTEAIS EM VACAS NELORE

Ciência Animal Brasileira, 2010
The present study describes a technique to obtain consecutiveluteal samples by colpotomy. The animals received an epidural anesthesia and local anesthesia (vaginal vault) and after ten minutes the vaginal vault was incised with a scalpel blade and tissue was dissected to provide access to the pelvic cavity and to retract the ovary into the vagina. Then,
Martin, Ian, Fujihara, Caroline Junko, Marques Filho, Wolff Camargo, Maziero, Rosiara Rosárias Dias, Biscarde, Carmo Emanuel Almeida, Ferreira, João Carlos Pinheiro   +5 more
openaire   +6 more sources

Field study on nematode resistance in Nelore-breed cattle [PDF]

Veterinary Parasitology, 2007
The present study evaluated Nelore cattle with different degrees of resistance to natural infections by gastrointestinal nematodes. One hundred weaned male cattle, 11-12 months of age, were kept on the same pasture and evaluated from October 2003 to February 2004.
Bricarello, P. A., Zaros, L. G., Coutinho, L. L., Rocha, R. A., Kooyman, F. N. J., De Vries, E., Goncalves, J. R. S., Lima, L. G., Pires, A. V., Amarante, A. F. T.   +9 more
openaire   +5 more sources

A comparison of immunological, chemical and surgical castration of Nelore bulls

Theriogenology, 2021
The objective was to compare effects of immunological, chemical and surgical castrations on testicular characteristics, scrotal surface temperatures, sperm quality, and serum testosterone concentrations in Bos indicus bulls. Eighty Nelore bulls (∼20 mo) were grazed on pasture, fed a supplement and slaughtered at ∼480 kg.
Paulo Henrique Yamada, Viviane Maria Codognoto, Felipe Rydygier de Ruediger, Kelry Mayara da Silva, Viviana Vallejo Aristizábal, John Patrick Kastelic, Guilherme Rizzoto, Fabiana Ferreira de Souza, Ricardo Velludo Gomes de Soutello, Marcelo George Mungai Chacur, Eunice Oba   +10 more
openaire   +4 more sources

Transcriptome analyses reveal reduced hepatic lipid synthesis and accumulation in more feed efficient beef cattle [PDF]

, 2018
peer-reviewedThe genetic mechanisms controlling residual feed intake (RFI) in beef cattle are still largely unknown. Here we performed whole transcriptome analyses to identify differentially expressed (DE) genes and their functional roles in liver ...
Fitzsimmons, Carolyn, Keogh, Kate, Li, Changxi, Mukiibi, Robert, Stothard, Paul, Vinsky, Michael, Waters, Sinead M.   +6 more
core   +2 more sources