Results 11 to 20 of about 12,697 (209)

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

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
core   +7 more sources

Use of Restricted Nursing and a Bovine Appeasing Substance on the Welfare, Growth Performance, and Response to Vaccination of Beef Calves at Weaning

Animal Research and One Health
This study evaluated the effects of restricted nursing (RN) and the administration of a bovine appeasing substance (BAS) given 8 days before (d‐8) and on the day of weaning (d0) as a strategy to mitigate stress and optimize the post‐weaning growth ...
Denise E. Mussalafo, Marcelo Vedovatto, Aylpy R. D. Santos, Dalton M. Oliveira, Fabiana A. M. Sterza, Mariana Santos, Helena B. C. R. Batista, Jaíne G. Garcia, Andréa R. D. L. Souza   +8 more
doaj   +2 more sources

CARACTERÍSTICAS DE CARCAÇA DE NOVILHOS INTEIROS NELORE E F1 NELORE X HOLANDÊS

Ciência Animal Brasileira, 2007
Dados de quatorze novilhos com dentição de leite foram utilizados e distribuídos em dois grupos genéticos (sete bovinos da raça Nelore, sete bovinos F1 Nelore x Holandês). Manejaram-se os animais em pastagem diferida de Brachiaria decumbens, iniciando-se
Dorival Pereira Borges da Costa, João Batista Rodrigues de Abreu, Raphael de Castro Mourão, Jucimar Castro Galdino da Silva, Victor Cruz Rodrigues, Jorge Carlos Dias de Sousa, Roberta Alethéa Felippe de Souza Marques   +6 more
doaj   +2 more sources

Curvas de crescimento de fêmeas da raça nelore e seus cruzamentos Growth curves of female nelore and their crosses [PDF]

Ciência e Agrotecnologia, 2011
Seleção para características do crescimento pode ser feita após ajustadas funções de crescimento para todos os animais sob seleção. Porém, a curva de crescimento de fêmeas é influenciada pelas gestações e lactações subsequentes.
Tarcisio de Moraes Gonçalves, Marco Aurélio Dessimoni Dias, Jairo Azevedo Junior, Mary Ana Petersen Rodriguez, Vivian Dagnesi Timpani, Antônio Ilson Gomes de Oliveira   +5 more
doaj   +2 more sources

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   +5 more sources

Influence of MC1R Gene Variants on Coat Color of Indicine Cattle Breeds. [PDF]

Anim Genet
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
Maciel SVSA, Oliveira IPP, Senes BB, Santana CJS, Alves JS, da Silva EA, Franco FO, da Silva BCF, Cairo FC, Cairo FC, Vercesi-Filho AE, Costa RB, de Camargo GMF.   +12 more
europepmc   +2 more sources

Does synchronising follicular wave emergence improve outcomes in non-superstimulated donor cattle undergoing ovum pick-up (OPU) for in vitro embryo production? [PDF]

Aust Vet J
In vitro embryo production (IVEP) is now a widely commercialised assisted reproductive technology used in cattle reproduction. The use of follicle‐stimulating hormone (FSH) to superstimulate donor cattle prior to ovum pick‐up (OPU) is generally regarded as an effective strategy to improve oocyte quality, developmental competence and increase embryo ...
Bird J, Nevard RP.
europepmc   +2 more sources

Genetic Parameters for Novel Feedlot Profitability-Related Traits in Nelore Cattle. [PDF]

J Anim Breed Genet
ABSTRACT This study aimed to estimate (co)variance components and genetic parameters for accumulated profitability (AFP) and profit per kilogram of liveweight gain (PFT), and their relationships with weight at 450 days of age (W450), scrotal circumference at 365 days of age (SC365), age at first calving (AFC), probability of precocious calving at 30 ...
Pereira L, Baldi F, Rosa GJM, Ferraz JBS, Albertini TZ, Carvalho M, Lobo RB, da Costa Eifert E, Peripolli E, Magnabosco CU.   +9 more
europepmc   +2 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   +4 more sources

Genomic Prediction Ability for Novel Profitability Traits Using Different Models in Nelore Cattle. [PDF]

J Anim Breed Genet
ABSTRACT The aim of this study was to assess the accuracy, bias and dispersion of genomic predictions for accumulated profitability (APF) and profit per kilogram of liveweight gain (PFT) in Nelore cattle using different prediction approaches. The dataset consisted of 3969 phenotypic records for each trait. The pedigree harboured information from 38,930
Pereira LS, Magnabosco CU, Rosa G, Stafuzza NB, Albertini TZ, Carvalho M, Lobo RB, Peripolli E, da Costa Eifert E, Baldi F.   +9 more
europepmc   +2 more sources