Results 41 to 50 of about 31,776 (275)

Genomic Analysis of Taurine and Indicine Ancestry in the Montana Tropical Composite Population

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT The Montana Tropical cattle, a Taurine and Indicine composite, were developed in Brazil since 1994 and were based on crossing four biological types of cattle: zebu (mainly Nelore), tropical adapted taurine (mainly Senepol and Romosinuano), British taurine (mainly Angus) and continental taurine (as Charolais, Simental and Limousin).
Camila Alves dos Santos, El Hamidi Hay, Elisangela Chicaroni de Mattos Oliveira, Rafael Espigolan, José Bento Sterman Ferraz, Tiago do Prado Paim   +5 more
wiley   +1 more source

Genetic variability of 10 microsatellite markers in the characterization of Brazilian Nellore cattle (Bos indicus)

Genetics and Molecular Biology, 2006
We assessed the polymorphism of 10 microsatellites in Brazilian Nellore cattle (Bos indicus) using a commercial multiplex system. Allele frequencies, polymorphism information content, heterozygosity and exclusion probability were calculated.
Marcelo Cervini, Flávio Henrique-Silva, Norma Mortari, Euclides Matheucci Jr   +3 more
doaj   +1 more source

Inbreeding depression in Zebu cattle traits [PDF]

Journal of Animal Breeding and Genetics, 2016
SummaryThe productivity of herds may be negatively affected by inbreeding depression, and it is important to know how intense is this effect on the livestock performance. We performed a comprehensive analysis involving five Zebu breeds reared in Brazil to estimate inbreeding depression in productive and reproductive traits.
Pereira, R. J., Santana, M. L., Ayres, D. R., Bignardi, A. B., Menezes, G. R. O., Silva, L. O. C., Machado, C. H. C., Josahkian, L. A., Albuquerque, L. G.   +8 more
openaire   +3 more sources

Genetic Parameter Estimation for Pregnancy Loss and Their Association With Reproductive and Growth Traits in Brahman Cattle Under Extensive Tropical Conditions

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT This study estimated genetic parameters for pregnancy loss (PL) in Brahman cattle and evaluated the genetic correlation of PL with growth and reproductive traits using both the pedigree relationship matrix (A) and pedigree plus genomic relationship matrix (H). Data were collected from two herds in Bolivia, focusing on three age groups: heifers,
Daniel Cardona‐Cifuentes, Lucia G. de Albuquerque, Milagros Arias, Sindy Caivio‐Nasner, Luis Camaripano, Luis G. Gonzalez‐Herrera, Patricia I. Schmidt, Fernando Baldi   +7 more
wiley   +1 more source

Herdabilidades de parâmetros de curvas de crescimento não-lineares em zebuínos, no estado de Pernambuco Heritabilities of nonlinear growth curve parameters in zebu breeds, in Pernambuco State, Northeastern Brazil

Revista Brasileira de Zootecnia, 2005
Objetivou-se estimar parâmetros genéticos e fenotípicos de curvas de crescimento de modelos não-lineares. Foram analisados dados de pesagem constantes no banco de dados de Controle de Desenvolvimento Ponderal da Associação Brasileira de Criadores de Zebu
Kleber Régis Santoro, Severino Benone Paes Barbosa, Eufrázio de Souza Santos, Lúcia Helena de Albuquerque Brasil   +3 more
doaj   +1 more source

Inferencia del origen del bovino Criollo Cubano a través del análisis de patri- y matrilinajes [PDF]

, 2011
Antes de descubrimiento, no existían bovinos en América. Los primeros, fueron introducidos en la Antillas Mayores (La Española, Puerto Rico, Jamaica y Cuba), y desde allí trasladados al resto de Latinoamérica.
Acosta, A., Garcia, J., Giovambattista, Guillermo, Liron, Juan Pedro, Peral Garcia, Pilar, Posik, Diego Manuel, Rogberg Muñoz, Andres, Uffo, O.   +7 more
core   +2 more sources

Stayability in the Era of Early‐Challenged Females: Genetic Parameters and Correlations With Economically Relevant Traits

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT This study aimed to estimate the variance components, heritabilities and genetic correlations between four new different categories of stayability (STAY48‐2, STAY48‐3, STAY54‐2, STAY54‐3) with weight at 240 days of age (W240), weight at 450 days of age (W450), scrotal circumference at 365 days of age (SC365), age at puberty in males (APM ...
Letícia Silva Pereira, Larissa Bordin Temp, Gabriel Gubiani, Miller Teodoro, Cláudio Ulhoa Magnabosco, Fernando Baldi   +5 more
wiley   +1 more source

Characteristics of feeding and breeding practices for intensification of smallholder dairy systems in the Kenya highlands [PDF]

, 2010
This study aimed at better understanding of the characteristics of feeding and breeding practices smallholder farmers adopt in intensifying their dairy production.
Bebe, B.O., Thorpe, W., Udo, H.M.J.
core   +8 more sources

Parâmetros genéticos para a produção de leite de controles individuais de vacas da raça Gir estimados com modelos de repetibilidade e regressão aleatória Estimation of genetic parameters for test day milk records of first lactation Gyr cows using repeatability and random regression animal models

Revista Brasileira de Zootecnia, 2005
Registros individuais perfazendo 8.183 controles de produção de leite (PLC) de 1.273 primeiras lactações de vacas da raça Gir de rebanhos supervisionados pela ABCZ no período 1994/2000 foram utilizados para se estimar componentes de variância e ...
Claudio Napolis Costa, Claudio Manoel Rodrigues de Melo, Carlos Henrique Crivelari Machado, Ary Ferreira de Freitas, Irineu Umberto Packer, Jaime de Araújo Cobuci   +5 more
doaj   +1 more source

Genetic Parameters for Novel Feedlot Profitability‐Related Traits in Nelore Cattle

Journal of Animal Breeding and Genetics, EarlyView.
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 ...
Letícia Pereira, Fernando Baldi, Guilherme Jordão Magalhães Rosa, José Bento Sterman Ferraz, Tiago Zanett Albertini, Minos Carvalho, Raysildo Barbosa Lobo, Eduardo da Costa Eifert, Elisa Peripolli, Cláudio Ulhôa Magnabosco   +9 more
wiley   +1 more source