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In ovo injection with glycerol and insulin-like growth factor (IGF-I): hatchability, intestinal morphometry, performance, and carcass characteristics of broilers.
Neves, Danusa Gebin Das; Retes, Pâmela Lacombe; Alves, Victória Veiga; Pereira, Rani Silva Guedes; Bueno, Yanka Do Couto; Alvarenga, Renata Ribeiro; Zangeronimo, Marcio Gilberto.
Afiliação
  • Neves DGD; Department of Animal Science, Federal University of Lavras , Lavras, Brazil.
  • Retes PL; Department of Veterinary Medicine, Federal University of Lavras , Lavras, Brazil.
  • Alves VV; Department of Veterinary Medicine, Federal University of Lavras , Lavras, Brazil.
  • Pereira RSG; Department of Animal Science, Federal University of Lavras , Lavras, Brazil.
  • Bueno YDC; Department of Veterinary Medicine, Federal University of Lavras , Lavras, Brazil.
  • Alvarenga RR; Department of Animal Science, Federal University of Lavras , Lavras, Brazil.
  • Zangeronimo MG; Department of Veterinary Medicine, Federal University of Lavras , Lavras, Brazil.
Arch Anim Nutr ; 74(4): 325-342, 2020 Aug.
Article em En | MEDLINE | ID: mdl-32362138
The objective of this study was to evaluate the effects of in ovo injection with glycerol (GLY) and insulin-like growth factor (IGF-I) on hatchability, biochemical parameters, intestinal morphometry, performance, and carcass characteristics of broiler chickens. A total of 400 fertilised eggs were distributed into five experimental groups. The treatments were arranged as non-injected (control), saline solution injected (0.9% NaCl solution), GLY solution injected (10 nmol/ml), IGF-I solution injected (100 ng/ml), and GLY + IGF-I solution injected. At 17.5 d of incubation, 0.5 ml of each solution was injected into the amniotic fluid of each egg of the injected groups. The injection of different solutions did not influence the hatchability and incubation time of the eggs. Compared to intact eggs, IGF-I and IGF-I+ GLY increased (p < 0.01) the blood IGF-I at hatching. Higher hepatic glycogen was observed (p < 0.05) with GLY or IGF-I. The tested substances decreased (p = 0.02) the fructose 1,6-biphosfate phosphatase activity but did not affect glycaemia. No difference in performance was observed in the first week. Higher feed intake and weight gain with lower feed conversion ratio was obtained ( p  < 0.05) with IGF-I at 14 d. At 21 d, higher weight gain was obtained (p = 0.05) with IGF-I, GLY, IGF-I, and GLY + IGF-I, resulting (p < 0.01) in birds with greater weight gain at 35 and 42 d of age. GLY provided higher villus height in the ileum at hatching and at 7 d of age. The tested solutions increased the relative weight of the liver at hatching. At 42 d of age, no carcass characteristics were influenced. It is concluded that GLY and IGF-I, together or separately, can be used in the in ovo feeding to improve the post-hatch performance of broilers, without affecting hatchability and carcass composition.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fator de Crescimento Insulin-Like I / Galinhas / Glicerol / Intestinos Limite: Animals Idioma: En Revista: Arch Anim Nutr Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fator de Crescimento Insulin-Like I / Galinhas / Glicerol / Intestinos Limite: Animals Idioma: En Revista: Arch Anim Nutr Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido