Results 181 to 190 of about 12,697 (209)

Intervalo de partos de fêmeas bovinas Nelore, Guzerá x Nelore, Red Angus x Nelore, Marchigiana x Nelore e Simental x Nelore [PDF]

Revista Brasileira De Zootecnia, 2006
Neste trabalho foram analisadas 286 observações de intervalo do primeiro ao segundo parto (IEP1) e 1.106 observações de intervalo de partos, considerando-se todos os partos (IEP2), de 89 fêmeas Nelore (NN), 47 F1 Guzerá x Nelore (GN), 76 F1 Red Angus x Nelore (RN), 35 F1 Marchigiana x Nelore (MN) e 39 F1 Simental x Nelore (SN).
Perotto, Daniel, Abrahão, José Jorge dos Santos, Kroetz, Inácio Afonso   +2 more
exaly   +5 more sources

Desempenho até a desmama de bezerros Nelore e cruzas com Nelore [PDF]

Revista Brasileira De Zootecnia, 2001
Foi analisado o desempenho ponderal pré-desmama de bezerros Nelore (N), Guzerá x N (GN), Red Angus x N (RN) e Marchigiana x N (MN), oriundos de um experimento de cruzamentos realizado na Estação Experimental do IAPAR de Paranavaí, nascidos no período de 1985 a 1998, produzidos por meio de inseminação artificial, em duas estações anuais de nascimento ...
Cubas, Antonio Carlos, Perotto, Daniel, Abrahão, José Jorge dos Santos, Mella, Sílvio Carlos   +3 more
exaly   +5 more sources

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The polymorphism in MUC1 gene in Nelore cattle

Journal of Animal Breeding and Genetics, 2007
SummaryMUC1 is a transmembrane glycoprotein expressed on the apical surfaces of the uterine epithelial tissue with predicted functions in protection and cell–cell adhesion. These properties are closely related with the repetitive region [variable number of tandem repeats (VNTR)] of the extracellullar domain and with the O‐glycosylation in their serine ...
F R P, de Souza, D B, Dentillo, J, Meola, F H, Biase, M V, Andréa, P A, Vozzi, R B, Lôbo, L R, Martelli   +7 more
openaire   +2 more sources

Homeopathic treatment for infertility in a prize Nelore bull

Homeopathy, 2007
Treatments for infertility in bulls are not described in homeopathic literature. A few treatments, such as changing the protein content of the diet, giving extra minerals, etc have been proposed. This case report describes homeopathic treatment for infertility in a prize bull.
exaly   +3 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.
A F T Amarante, R A Rocha, F N J Kooyman   +2 more
exaly   +5 more sources

Ovarian follicular dynamics in nelore breed () cattle

Theriogenology, 1997
C M Barros, C M Barros
exaly   +2 more sources

Heritability estimate for stayability in nelore cows

Livestock Production Science, 2003
Abstract The objective of the present study was to determine the possibility of using stayability (STAY) of dams as a selection criterion for fertility in the Nelore breed. STAY was defined as whether or not a cow calved in a herd at a specific age or after this age given that she had calved at an earlier age. The specific ages studied were 5 (STAY5),
Silva, JAIIV, Eler, J. P., Ferraz, JBS, Golden, B. L., Oliveira, H. N.   +4 more
openaire   +2 more sources

VIABLE OOCYTE PRODUCTION RATE, EMBRYO TURNAROUND AND PREGNANCY RATE, IN NELORE P.O AND NELORE CEIP

Brazilian livestock has established itself as a global reference, driven by advancements in reproductive biotechnologies and the genetic improvement of the cattle herd. The use of techniques such as fixed-time artificial insemination (TAI), fixed-time embryo transfer (TETF), and in vitro embryo production (IVEP) has significantly accelerated genetic ...
Maria Eduarda Ramalho Lopes, Ruana Rosa Gitirana, Otaviano de Souza Pires Neto, Julia Beatriz Lemos Vasconcelos, Renê Ferreira Costa, Marielly Maria Almeida Moura, Ana Karolyne Pereira Barbosa, Joyce Costa Ribeiro, Julianna Lopes da Silva, Esther Mariely Vieira, Maria Clara Chaves Lima, Mariana Rabelo Madureira, Álvaro Henrique Lopes Fernandes, Isadora Fernanda Dias Nunes, Rachel Costa Lins de Albuquerque, Maria Clara de Freitas Soares, Nysa Neves Alves, Cíntia Aparecida de Almeida Manhães, Matheus Pereira da Silva, Lívia Rodrigues Mendes, Layza Lorena Medeiros Fonseca, Enzo Meireles Andrade   +21 more
exaly   +2 more sources

Fertility-associated proteins in Nelore bull sperm membranes

Animal Reproduction Science, 2006
The present study was undertaken to evaluate the protein composition of the sperm membranes (SM) of Nelore bulls, assessing protein markers associated with bull fertility, and whether these markers can be used for predicting bull fertility. Samples were obtained of 20 Nelore bulls, with fertility ranked and divided into three groups (greater, normal ...
Roncoletta, M., Morani, EDC, Esper, C. R., Barnabe, V. H., Franceschini, P. H.   +4 more
openaire   +3 more sources