Results 41 to 50 of about 29,741 (229)
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 +5 more
doaj +1 more source
Signatures of Selection for Environmental Adaptation and Zebu × Taurine Hybrid Fitness in East African Shorthorn Zebu [PDF]
El ganado East African Shorthorn Zebu (EASZ) es un antiguo híbrido entre el zebu asiático y el ganado taurino africano preferido por los agricultores locales debido a su adaptabilidad al medio ambiente africano. Los controles genéticos de estas adaptabilidades aún no se entienden claramente.
Hussain Bahbahani +16 more
openaire +5 more sources
Genetic Relationships Between Residual Gain and Economically Important Traits in Nellore Cattle
ABSTRACT Sustainable beef production requires identifying animals with superior feed efficiency to reduce environmental impact and production costs. This study aimed to estimate heritability and genetic correlations between residual gain (RG) and growth, reproductive, carcass and feed efficiency traits in Nellore cattle.
Miller Teodoro +7 more
wiley +1 more source
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
Influence of MC1R Gene Variants on Coat Color of Indicine Cattle Breeds
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
Silel V. S. A. Maciel +12 more
wiley +1 more source
Objetivou-se com este estudo avaliar o método de amostragem de Gibbs (GS) como ferramenta para se estimar os componentes de (co)variância e parâmetros genéticos para características de carcaça e reprodutivas: área de olho de lombo (AOL); espessura de ...
Vanessa Barbosa +7 more
doaj
Computed Tomography of the Nasal Cavities and Paranasal Sinuses of Cattle at Different Ages
Computed tomography (CT) provides a detailed, non‐invasive evaluation of the nasal cavities and paranasal sinuses in cattle. Age‐related changes include progressive enlargement of the sinuses and increasing ossification of the nasal turbinates. These findings highlight the importance of considering age when interpreting CT images in bovine diagnostics ...
Charles Montel +4 more
wiley +1 more source
Desempenho bioeconômico de sistemas intensivos de cria e de ciclo completo por meio de simulação
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
Madagascar's grasses and grasslands:anthropogenic or natural? [PDF]
Grasses, by their high productivity even under very low pCO2, their ability to survive repeated burning and to tolerate long dry seasons, have transformed the terrestrial biomes in the Neogene and Quaternary.
Bosser J +21 more
core +1 more source
Poor husbandry practices in Bukombe District accelerate diseases in livestock and indiscriminate uses of antimicrobials. Cow abortions, raw cow placenta and aborted fetuses feeding dogs, communal grazing and watering and introduction of new animals predict brucellosis in the herd.
Makoye Mhozya +2 more
wiley +1 more source

