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	Provedor de dados Ciência Rural (1) Autor Moraes,Mauro Pires (1) Rebelatto,Marlon Cesar (1) Silva,Adriana Moraes da (1) Weiblen,Rudi (1) Palavra-chave Calves (1) Morbidity (1) Passive immunity (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2000 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Relationship between passive immunity and morbidity and weight gain in dairy cattle Ciência Rural Moraes,Mauro Pires; Weiblen,Rudi; Rebelatto,Marlon Cesar; Silva,Adriana Moraes da. Serum samples from 87 calves from a dairy herd in Southern Brazil were collected to determine the levels of passive transfer and its relationship to morbidity and mean daily weight gain (MDG). Serum immunoglobulin (Ig) levels were measured by the zinc sulfate turbidity test at 24 hours of age in the calves. The average serum Ig level was 11.40g/l. Fourteen out of 87 calves (16.1%) showed serum Ig levels one standard deviation below the mean (4.59g/l) and were considered as having failure of passive immunity transfer (FPT). The occurrence of diarrhea from birth to weaning was higher in the FPT group (100%) than the normal group (90.7%) but the difference was not significant. The occurrence of signs of respiratory disease was similar in both groups (35.7%... Tipo: Info:eu-repo/semantics/article Palavras-chave: Passive immunity; Calves; Morbidity. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782000000200017 Registros recuperados: 1 Primeira ... 1 ... Última

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