SOYBEAN PROTEINASE-INHIBITORS AFFECT INTESTINAL TRYPSIN ACTIVITIES AND AMINO-ACID DIGESTIBILITIES IN RAINBOW-TROUT (ONCORHYNCHUS-MYKISS)

被引：176

作者：

KROGDAHL, A ^{[1
]}

LEA, TB ^{[1
]}

OLLI, JL ^{[1
]}

机构：

[1] NLH,INST AQUACULTURE RES,N-1430 AS,NORWAY

来源：

COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-PHYSIOLOGY | 1994年 / 107卷 / 01期

关键词：

SOYBEAN PROTEINASE INHIBITORS; TRYPSIN ACTIVITIES; PROTEIN DIGESTIBILITY; ONCORHYNCHUS MYKISS;

D O I：

10.1016/0300-9629(94)90296-8

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Rainbow trout (Oncorhynchus mykiss), 265 g kept in fresh water, 1 m(2) surface area tanks, 10 kg per tank were fed diets based on high quality fish meal added 0.00, 0.37, 0.74, 1.11 and 1.48% soybean proteinase inhibitors, and chromic oxide as internal marker. After TO days, 10 fish were dissected to obtain total contents of intestinal segments, and faeces were stripped from the remainder. The inhibitors decreased protein digestibility from 93 to 70%. Cysteine accumulated increasingly in the small intestine with increasing dietary inhibitor level. A linear relationship between intestinal proteolytic activities and protein digestibility was seen. Lipid digestibility was not significantly affected.

引用

页码：215 / 219

页数：5

共 24 条

[1] Soybean protein as a source of amino acids for the chick [J].