Results 81 to 90 of about 18,168 (244)
Genetic diversity among bovine racial subpopulations of Costa Rica
Agronomía Costarricense, 2015 Genetic diversity among bovine racial subpopulations of Costa Rica. The objetive of this study was to quantify the genetic diversity among 16 bovine racial subpopulations of Costa Rica, based on 1412 samples of bovine DNA from around the country, which ...
Marco Martínez +4 more
doaj
Hormonal protocols for in vitro production of Zebu and taurine embryos
Pesquisa Agropecuária Brasileira, 2014 The objective of this work was to evaluate the effects of hormonal synchronization protocols, associated or not with follicular development stimulation, on the recovery of oocytes and on in vitro production of Bos indicus and B.
Carlos Antônio de Carvalho Fernandes +7 more
doaj +1 more source
, 2002 The objective of the present study was to evaluate the effects of age and genetic group in bulls, and determine the relationship between these two factors on testicular biometry (scrotal circunference and testicular consistency).
R. Valentim +3 more
semanticscholar +1 more source
Pesquisa Agropecuária Brasileira, 2006 The objective of this work was to characterize Pantaneiro cattle genetically through its paternal ancestry by the morphology of the Y chromosome, whether submetacentric or acrocentric, as well as to identify the maternal ancestry through mitochondrial ...
Érica Cunha Issa +2 more
doaj +1 more source
, 2008 The productive performance of four Holstein-Gir genetic groups (1/2H, 1/4H, 5/8H, 5/8Hinter se) and the effects of non-genetic factors on production traits was evaluated using a data set of 7,951 test-day samples collected between January 1980 and ...
S. Barbosa +5 more
semanticscholar +1 more source
Ciência Rural, 2009 The aim of this study was to identify heparin-binding proteins (HBPs) in seminal plasma of Nellore (Bos taurus indicus) bulls. Bulls (n=4), 30-36 months old, 500-550kg with satisfactory seminal quality were selected.
Carlos Eurico Fernandes +3 more
doaj
Restriction fragment length polymorphism in calpain (CAPN2) gene in crossbred cattle
Boletim de Indústria Animal, 2012 With advances in molecular genetics have been possible to predict the genetic value of the animal, in particular its potential to transmit desired characters to their offspring, including characters difficult to evaluate or with low heritability, as is ...
Maria Aparecida Cassiano Lara +6 more
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The Pre-Natal Development of Skin and Hair in Cattle II. Bos Indicus l. X B. Taurus l. [PDF]
, 1960 AG Lyne, Margaret J Heideman
openalex +1 more source
TERMORREGULAÇÃO ESCROTAL EM TOUROS NELORE (Bos taurus indicus)
, 2014 The aim of this study was to determine the scrotal surface temperature with the use of infrared thermography camera in Nellore bulls under field conditions, before and after collection of semen.
Camila Dutra de Souza +7 more
semanticscholar +1 more source
An assessment of population structure in eight breeds of cattle using a whole genome SNP panel
BMC Genetics, 2008 Background Analyses of population structure and breed diversity have provided insight into the origin and evolution of cattle. Previously, these studies have used a low density of microsatellite markers, however, with the large number of single ...
Gao Chuan +15 more
doaj +1 more source