Efeitos da nutrição, idade à desmama e mastite sobre a qualidade do colostro e do leite de ovelhas

• Autor(a) principal: Fernandes, Simone [UNESP]
• Data de Publicação: 2013
• Outros Autores: Siqueira, Edson Ramos de [UNESP], Domingues, Paulo Francisco [UNESP], Pilan, Guilherme José Guimarães [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://www.fmvz.unesp.br/rvz/index.php/rvz/article/view/343; http://hdl.handle.net/11449/141133
• topic: Milk chemical composition; Immunoglobulin; Sheep; Composición química de la leche; Inmunoglobulinas; Ovinos; Composição química do leite; Imunoglobulinas; Ovinos

Twenty nine multiparae Santa Inês breed ewes, all of them with the same reproductive age, were submitted to four treatments in the last gestation month and during lactation. It was used a factorial design (two nutrition levels and two weaning ages), in the following way: 1: corn silage diet and weaning at the age of 45 days; 2: corn silage plus concentrate diet and weaning at the age of 45 days; 3: corn silage diet and weaning at the age of 70 days; 4: corn silage plus concentrate diet and weaning at the age of 70 days. Milk samples were collected weekly, starting at the second week after parturition, for somatic cell count. The content of protein, fat, lactose and total solids were analyzed in colostrum and milk. There was a diet effect for colostrum protein, fat and total solids. The ewe group fed corn silage plus concentrate presented the minor values. For milk fat percentage the best result was obtained for weaning at 70 days age (5.51%) versus (4.32%) observed at 45 days age. The milk chemical composition was similar to the values obtained by other authors for milk production breeds. The subclinical mastitis did not affect the milk quality.