Publicação: Fatores de riscos associados à ocorrência de helmintos gastrintestinais em cabras leiteiras mantidas em sistema de pastejo
Carregando...
Data
2012-01-01
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Estadual de Londrina (UEL)
Tipo
Artigo
Direito de acesso
Acesso aberto
Resumo
Infection due to the gastrointestinal nematodes can negatively interact with the productive performance of dairy goats, and in some cases can induce mortality in the flocks. The objective was to study the influence of season, parturition order, postpartum, lactation and breed standard on the population of helminths in dairy goats. 31 goats were used, with 15 Saanen and 16 F1 (1/2 Boer + 1/2 Saanen). of these, 13 were from the 1st lactation and 18 from the 2nd or more lactations. The highest fecal egg counts occurred during the summer and spring, with FEC in Saanen higher (p < 0.01) than in F1 animals (1/2 Boer + 1/2 Saanen). The animals with 1st lactation showed higher FEC (p < 0.004) than the animals in 2nd or more lactation. During the peripartum the largest FEC for both breeds standards were in the week of the birth (p < 0.05), followed by post-partum and pre-partum. In peripartum the Saanen goats showed higher FEC (p < 0.02) than the F1 and primiparous (p < 0.008) in relation to pluriparous. F1 animals are resistant to helminthes when compared to Saanen animals, demonstrating that crossing of resistant breeds with high production breeds is a viable alternative to increase productivity without compromising the parasitary stability of the herd. The peripartum period is a risk factor associated to the occurrence of gastrointestinal helminths, especially in Saanen goats from first lactation.
Descrição
Palavras-chave
Idioma
Português
Como citar
Semina-ciencias Agrarias. Londrina: Universidade Estadual de Londrina (UEL), v. 33, n. 2, p. 713-721, 2012.
