Consulta: creatorFacets:"Pizauro Jr.,JM"
Registros recuperados: 2
Data/hora: 10/06/2024 04:46:59

Effect of broiler breeder age on pancreas enzymes activity and digestive tract weight of embryos and chicks
Provedor de dados: 89
Autores: Maiorka,A; Santin,E; Silva,AVF; Routman,KS; Pizauro Jr.,JM; Macari,M.
A study was carried out to evaluate the effect of broiler breeder age on the development of the digestive tract of embryos and chicks. Fertilized eggs Cobb from 30 and 60 week-old broiler breeder was utilized in this experiment. The results showed that eggs from older (60 weeks of age) broiler breeders were heavier (p = 0.001) than those from younger (30 weeks of age) broiler breeder. In addition, older broiler breeder had larger (p = 0.001) embryos showing a higher yolk sac (p = 0.001) and higher gastrointestinal tract relative weight (p = 0.007) than those from younger broiler breeder. The activities of pancreatic lipase and trypsin enzymes were also higher in embryos from older broiler breeder than those from younger broiler breeder (p = 0.001 and p =...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler breeder age; Embryo; Enzymatic activity; Gastrointestinal tract.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000100003

Intestinal and pancreas enzyme activity of broilers exposed to thermal stress
Provedor de dados: 89
Autores: Routman,KS; Yoshida,L; Frizzas de Lima,AC; Macari,M; Pizauro Jr.,JM.
Thirty-two Hubbard broilers were raised under commercial husbandry to evaluate the effect of temperature exposure (26 and 35ºC) on the activity of digestive enzymes at different ages (23 and 46 days) and different diet energy levels (2,900 and 3,200 kcal ME/kg). Data were analyzed in a 2x2x2 factorial arrangement (energy/temperature/age) in a completely randomized design. Animals were slaughtered after four hours of heat exposure for sampling of an intestinal segment, to extract alkaline phosphatase, and pancreas, to extract amylase, lipase and trypsin. The activity of intestinal alkaline phosphatase was influenced by energy level and animal age. Energy level of diet and environmental temperature interfered on the activity of pancreatic amylase. Lipase...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broilers; Digestive enzymes; Thermal stress.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2003000100003