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	Provedor de dados Animal Sciences (2) Autor Araújo, Thalita Polyana Monteiro (2) Lima, Guilherme Ferreira da Costa (2) Peixoto, Maria Gabriela Campolina Diniz (2) Rangel, Adriano Henrique do Nascimento (2) Bezerra, Joadilza da Silva (1) Borba, Luiz Henrique Fernandes (1) Lima Júnior, Dorgival Morais de (1) Urbano, Stela Antas (1) Mais... Palavra-chave Zebu. (2) 5.04.05.02-0 gestation (1) Body reserve (1) Genetic progress (1) Milk production (1) Milk quality (1) Selection (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2018 (1) 2017 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Estimation of genetic and phenotypic trends for dairy traits of Gyr and Guzerá breeds Animal Sciences Rangel, Adriano Henrique do Nascimento; Araújo, Thalita Polyana Monteiro; Lima, Guilherme Ferreira da Costa; Borba, Luiz Henrique Fernandes; Peixoto, Maria Gabriela Campolina Diniz; Lima Júnior, Dorgival Morais de.  Milk production has high economic importance in dairy cattle production systems, which justifies its inclusion in genetic breeding programs. The objective of this study was to evaluate the genetic and phenotypic trends of dairy traits in Gyr (167 lactations) and Guzerá (148 lactations) breeds in the State of Rio Grande do Norte (RN). Milk, fat and protein production obtained from monthly dairy controls were the traits evaluated. The expected differences in progeny (DEPs) for these traits were estimated using an animal model. From the means of phenotypic values and DEPs, we estimated the genetic and phenotypic trends in linear regressions as a function of the year of calving of the animal. Positive genetic and phenotypic trends were observed for Gyr (26.8... Tipo: Info:eu-repo/semantics/article Palavras-chave: Genetic progress; Milk production; Selection; Zebu.. Ano: 2017 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/36685 Gir and Guzerat cow milk production and composition according to lactation stage, somatic cell count, physiological state and body condition Animal Sciences Araújo, Thalita Polyana Monteiro; Rangel, Adriano Henrique do Nascimento; Lima, Guilherme Ferreira da Costa; Peixoto, Maria Gabriela Campolina Diniz; Urbano, Stela Antas; Bezerra, Joadilza da Silva.  This work was realized to evaluate lactation stage, physiological state, somatic cell count (SCC) and body condition score (BCS) on production and composition of cow's milk from Gir and Guzerat breeds were studied. Ninety-eight cows were analyzed and classified according to their physiological state, lactation stage, SCC and BCS. Milk production was weighed monthly to obtain production data. Composed samples were collected in vials containing preservatives and sent to the laboratory for analysis. Data were used for statistic descriptive analysis and analysis of variance. Higher milk production in the first 60 days of lactation was observed. Fat, protein and total solids concentration increased according to the increase of days in milk; while lactose... Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.04.05.02-0 gestation; Milk quality; Body reserve; Zebu.. Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/39352 Registros recuperados: 2 Primeira ... 1 ... Última

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