Results 1 to 10 of about 542 (161)
Genetic study of quantitative traits supports the use of Guzerá as dual-purpose cattle [PDF]
Animal Bioscience, 2022 Objective The aim of this study was to estimate genetic parameters for 305-day cumulative milk yield and components, growth, and reproductive traits in Guzerá cattle.
Eula Regina Carrara +9 more
doaj +2 more sources
Genetic diversity of bovine populations raised in Senegal. [PDF]
Vet Med Sci, 2022 This study revealed that the animals in Senegal's cattle breeding programmes show low genetic diversity. This is mainly explained by reproductive isolation and selection pressure. Abstract Background The Gobra zebu and N'dama taurine cattle breeds are important genetic animal resources for Senegal.
Sambe BS +6 more
europepmc +2 more sources
The contribution of a MOET nucleus scheme for the improvement of Guzerá (Bos indicus) cattle for milk traits in Brazil [PDF]
Frontiers in Genetics, 2022 The Guzerá breed evolved from the introduction of breeds from India, mainly the Kankrej breed, into Brazilian livestock at the end of the 19th century. Guzerá adapted well to the climatic conditions of Brazil, where it is considered a dual-purpose breed ...
Maria Gabriela Campolina Diniz Peixoto +4 more
doaj +2 more sources
Genetic Diversity and Population Genetic Structure of a Guzerá (Bos indicus) Meta-Population [PDF]
Animals, 2021 The Brazilian Guzerá population originated from a few founders introduced from India. These animals adapted well to the harsh environments in Brazil, were selected for beef, milk, or dual-purpose (beef and milk), and were extensively used to produce ...
Maria Gabriela C. D. Peixoto +8 more
doaj +2 more sources
Genetic Evaluation Weight, Carcass and Stayability in Nellore Females. [PDF]
J Anim Breed GenetABSTRACT Traits related to growth, carcass quality and stayability are key components in enhancing the profitability and sustainability of Nelore cattle production systems. This study aimed to estimate heritabilities and genetic and environmental correlations for these traits using a Bayesian approach. Data from 94,703 females were analysed for weights
de Carvalho IS +4 more
europepmc +2 more sources
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2003 A duração do estro e os intervalos início do estro-ovulação e fim do estro-ovulação após luteólise induzida ou espontânea, e os intervalos administração de prostaglandina-início do estro e administração de prostaglandina-ovulação foram avaliados em 35 ...
N.G. Alves +4 more
doaj +2 more sources
Cluster analysis of breeding values for milk yield and lactation persistency in Guzerá cattle [PDF]
Ciência Rural, 2016 : The aim of this study was to explore the pattern of genetic lactation curves of Guzerá cattle using cluster analysis. Test-day milk yields of 5,274 first-lactation Guzerá cows were recorded in a progeny test.
Diego Augusto Campos da Cruz +5 more
doaj +2 more sources
PRODUÇÃO E COMPOSIÇÃO DO LEITE DE VACAS GIR E GUZERÁ NAS DIFERENTES ORDENS DE PARTO
Revista Caatinga, 2009 The present study aimed to evaluate the interference of cows genotype and calving order on the milk production and composition during lactation period.
Adelílian Baracho Ribeiro +4 more
doaj +2 more sources
Boletim de Indústria Animal, 2013 O presente trabalho analisou o efeito da suplementação no ganho de peso após a desmama, de bovinos da raça Guzerá e de seus cruzamentos com Pardo SuÃço (PS), Nelore (NE), Chianina (CH) e Caracu (CA). Foram utilizados 140 animais, sendo 53 no experimento 1 e 87 no experimento 2 com a seguinte composição genética: experimento 1 – GU; 3/4GU1 ...
LuÃs Orlindo Tedeschi +3 more
openaire +9 more sources
Isotonic regression analysis of Guzerá cattle growth curves [PDF]
Revista Ceres, 2018 The objective of this study was to apply data transformation via isotonic regression in growth curves studies of Guzerá cattle whose data presented disturbances characterized by decreased body weight in certain age groups.
Adriano Rodrigues +5 more
doaj +2 more sources