Results 21 to 30 of about 7,051 (197)

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
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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

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
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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

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

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
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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
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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
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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
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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