Nutrição in ovo: adição de glicerol em ovos embrionados de frangos de corte

Detalhes bibliográficos
Ano de defesa: 2015
Autor(a) principal: Neves, Danusa Gebin das
Orientador(a): Não Informado pela instituição
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal de Lavras
Programa de Pós-Graduação em Zootecnia
UFLA
brasil
Departamento de Zootecnia
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
Link de acesso: http://repositorio.ufla.br/jspui/handle/1/10673
Resumo: The objective of this study was to evaluate the effect of feeding in ovo with glycerol on post-hatch development of broiler chicks. A total of 408 fertile eggs were distributed into six experimental groups consisting of five 0,9% saline solutions with different concentrations of glycerol 85% (0.0, 12.5, 25.0, 37.5 and 50.0 nmol/ml) and a control group (without inoculation). The inoculations were conducted at 17 days of incubation, in order to evaluate hatchability, embryo mortality, body weight and viscera weight, intestinal epithelial morphometry, glycemia and glycerol kinase activity of liver in chicks at hatching and at 7 days of age. The inoculation of solutions with glycerol did not influence the hatching weight and relative weights of the liver, pancreas, intestine and chest. There was quadratic effect of glycerol levels on the weights of yolk residue and gizzard and and glycemia; as well as increasing linear effect over the weights of spleen and heart, over at the height of the the villus of the duodenum and the ileum, at the depth of the crypts in the jejunum and ileum, and over hepatic glycerol kinase activity. At seven days of age, there was occurred no effect of glycerol over body weight and viscera weight; However, the height of villus and depth of the crypts in the ileum, with decrease glycemia and of the crypts in the jejunum. We conclude that glycerol can be used as substrate for in ovo nutrition of broiler chicks egg at the dose of 12.5 nmol/mL, for improving the conditions of the intestinal epithelial after hatching and yolk reserves in up to seven days after hatching.