Results 91 to 100 of about 14,295 (248)

Bos indicus, the zebu

open access: yes, 2008
Zebus or humped cattle are the typical cattle of the South Asian subcontinent. At present, there are thirty or more zebu breeds in India. The recognized breeds differ mainly in the shape and firmness of the hump, horn size, ranging from long-horned to very short-horned or even almost rudimentary horns, and horn shape, ranging from lyre-shaped through ...
openaire   +2 more sources

RADIOIMMUNOASSAY OF LUTEINIZING HORMONE IN THE BLOOD OF ZEBU CATTLE [PDF]

open access: yesReproduction, 1972
A solid-phase radioimmunoassay was used to measure lh in the serum of a Zebu cow and heifer during the oestrous cycle. Shortly after the onset of oestrus, serum levels of lh rose sharply to 20 to 120 ng/ml before dropping to baseline levels of about 2 ng/ml after 8 to 10 hr.
openaire   +3 more sources

Reproductive parameters of Sindhi cows (Bos taurus indicus) treated with two ovulation synchronization protocols

open access: yesRevista Brasileira de Zootecnia, 2013
The objective of this study was to evaluate the reproductive parameters of Sindhi cows aiming to improve the efficiency of fixed-time artificial insemination protocols in this breed.
Raquel Rodrigues Costa Mello   +7 more
doaj  

Avaliação andrológica por pontos e comportamento sexual em touros da raça Nelore Andrologic evaluation by points and sexual behavior in Nelore bulls

open access: yesRevista Brasileira de Zootecnia, 2009
Objetivou-se estudar a relação entre dois métodos de avaliação do potencial reprodutivo - Classificação Andrológica por Pontos (CAP) e comportamento sexual de touros da raça Nelore - e verificar a acurácia desses testes em predizer o potencial ...
Flávio Guiselli Lopes   +4 more
doaj   +1 more source

Desempenho bioeconômico de sistemas intensivos de cria e de ciclo completo por meio de simulação

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2013
Foram simulados quatro sistemas de produção de bovinos de corte a partir de dados zootécnicos e econômicos de uma fazenda de ciclo completo situada no município de Corinto, região central de Minas Gerais.
R.A.V. Santana   +3 more
doaj   +1 more source

CARACTERÍSTICAS FÍSICO-QUÍMICAS DA CARNE DE TOURINHOS ZEBUÍNOS E EUROPEUS ALIMENTADOS COM NÍVEIS DE GRÃO DE MILHETO NA DIETA

open access: yesCiência Animal Brasileira, 2014
We evaluated the physicochemical characteristics of crossbred bulls with European or zebu genetic predominance fed in feedlot with diets with high concentrate (80%) and grain millet levels to replace corn grain (0, 33, 66 and 100%).
Rodrigo Medeiros da Silva   +5 more
doaj   +1 more source

Assessment of Reproductive Performance and Problems in Crossbred (Holstein Friesian X Zebu) Dairy Cattle in and Around Mekelle, Tigray, Ethiopia

open access: yes, 2015
A cross sectional study was conducted in and around Mekelle, Tigray, Ethiopia from November 2013 to May 2014 with the aims to assess reproductive performance and prevalence of reproductive problems in crossbred (Holstein Friesian x Zebu) dairy cattle.
A. Mekonnin   +6 more
semanticscholar   +1 more source

NÍVEIS PERIFÉRICOS DE TESTOSTERONA TOTAL EM TOUROS GUZERÁ

open access: yesCiência Animal Brasileira, 2014
Twenty-four Guzerat bulls were evaluated from 24 to 34 months of age, aiming to determinate the bulls serum testosterone concentration profile and their variation according to age, body weight and andrologic traits.
Juliano Cesar Dias   +4 more
doaj   +1 more source

Impacts of the classifier on results of genetic analysis of score traits related to type and management in gyr dairy cattle

open access: yesBoletim de Indústria Animal, 2018
The success of a breeding program invariably depends on the quality of data collected. Visual scores have the advantage of low operating cost for their collection, but they require objectivity, both in definition and in the process of attribution of the
Rafael Guimarães Vizoná   +5 more
doaj  

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