Results 21 to 30 of about 2,597 (160)

Genomic insights into the population structure and genetic diversity of Ugandan indigenous cattle. [PDF]

Anim Genet
Abstract Domestic cattle in Africa can be categorized as either taurine (Bos taurus) or indicine (Bos indicus) based on their domestication histories from the extinct aurochs (Bos primigenius). Close to 150 breeds of indigenous cattle are estimated to exist in Africa and have a complex mixture of B. taurus and B. indicus ancestries.
Okwasiimire R, Kugonza DR, Ruvinskiy D, Weldenegodguad M, Ghanem N, Makgahlela ML, Ginja C, Crooijmans RPMA, Kantanen J, Uimari P, Pokharel K.   +10 more
europepmc   +2 more sources

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

Accuracy of genotype imputation in Nelore cattle [PDF]

Genetics Selection Evolution, 2014
Genotype imputation from low-density (LD) to high-density single nucleotide polymorphism (SNP) chips is an important step before applying genomic selection, since denser chips tend to provide more reliable genomic predictions. Imputation methods rely partially on linkage disequilibrium between markers to infer unobserved genotypes.
Carvalheiro, Roberto, Boison, Solomon A, Neves, Haroldo H R, Sargolzaei, Mehdi, Schenkel, Flavio S, Utsunomiya, Yuri T, O'Brien, Ana Maria Pérez, Sölkner, Johann, Mcewan, John C, van Tassell, Curtis P, Sonstegard, Tad S, Garcia, José Fernando   +11 more
openaire   +5 more sources

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   +4 more sources

Desempenho de bovinos Nelore e cruzados Blonde d'Aquitaine x Nelore do nascimento ao desmame [PDF]

Revista Brasileira de Saúde e Produção Animal, 2013
Objetivou-se avaliar o desempenho produtivo de bovinos Nelore e suas cruzas com Blonde d'Aquitaine (½ Nelore + ½ Blonde d'Aquitaine) do nascimento ao desmame, mantidos em sistema de pastejo, no Estado de Alagoas. Foram analisadas 1.279 medidas de peso ao nascimento (PN) e peso à desmama ajustado para 210 dias (P210) referentes ao período entre os anos ...
Menezes, Lenice Mendonça de, Pedrosa, Amaro Calheiros, Pedroso, Daniel, Fernandes, Sayonara   +3 more
openaire   +5 more sources

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   +6 more sources

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   +2 more sources

Estimating Linkage Disequilibrium and Effective Population Size Across Generations in Holstein Cattle. [PDF]

Vet Med Sci
This study reveals a significant historical decline in effective population size (Ne) in Holstein cattle due to intensive breeding, with recent stabilization reflecting improved genetic management. Maintaining genetic diversity is vital for sustainable dairy cattle breeding programs.
Salehi R, Javanmard A, Mokhber M, Alijani S.   +3 more
europepmc   +2 more sources

Cerebellar Abiotrophy in Nelore

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. CA is characterized by degeneration and loss of Purkinje cells and decrease in the population of granule cells.
Taismara S. Oliveira, Safira R. D. Lima, Ronaldo Furtini, Valquiria Bull, Érica A. Costa, Tatiane A. Paixão, Renato L. Santos   +6 more
openaire   +1 more source

Cervical Vertebral Stenotic Myelopathy in a Nelore Calf

Veterinary Sciences, 2022
This paper aims to report clinical, laboratory, radiographic, and pathological features in a case of cervical vertebral stenotic myelopathy (CVSM) affecting a 4-month-old Nelore calf for the first time. During physical examination, the calf could stand if assisted when lifting by the tail but fallen to the ground when trying to walk.
Mariana de Oliveira Bonow, José Renato Junqueira Borges, Isabel Luana de Macêdo, Davi Emanuel Ribeiro de Sousa, João Marcelo Azevedo de Paula Antunes, Márcio Botelho de Castro, Antonio Raphael Teixeira-Neto, Benito Soto-Blanco, Antonio Carlos Lopes Câmara   +8 more
openaire   +3 more sources