Effects of spider-derived protease (Arazyme) supplementation of corn-soy diets on the performance in laying hens at the late production
作者： J.U. Kim , J.Y. Kim , J.S. Kim , B.K. Lee , S.Y. Lee
DOI: 10.5536/KJPS.2009.36.1.047
关键词: Spider 、 Intestinal contents 、 Eggshell 、 Caecum 、 Biology 、 Food science 、 Cholesterol 、 Enzyme assay 、 Protease 、 Coliform bacteria
摘要: This study was carried out to investigate the effects of spider-derived protease [Arazyme (AZ)] supplementation on egg production, quality, cecal microflora and viscosity intestinal contents in laying hens at late production. A total two hundred, 59-wks-old, Hy-Line Brown layers were divided into four groups, placed 5 replicates per group (50 birds group) fed one diets containing 0.05, 0.075 or 0.1% AZ control for wks. The results showed that weight diet 0.05% significantly higher than those other groups (P
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