摘要
用ρ均为４５％的马铃薯淀粉、糊精、葡萄糖和４５％马铃薯淀粉＋０５％Ｃｒ２Ｏ３为碳水化合物源的４种试验饲料饲喂草鱼，１６ｄ后测定消化率，５０ｄ后测定消化组织的淀粉酶活性．结果表明，日增质量率和饲料效率在各组之间均无显著差异（Ｐ＞００５）；草鱼对淀粉、糊精、葡萄糖和淀粉＋Ｃｒ２Ｏ３的表观消化率分别为５９２５％，９８５２％，９８５９％和５７３７％；各试验组消化组织的淀粉酶活性在摄食后下降，肝胰脏和前肠、中肠、后肠淀粉酶活性的最低值分别出现在摄食后３ｈ，３～５ｈ，５～８ｈ。
Determination of digestibility and amylase activity was proceeded after grass carp were raised with diets containig 45% starch,45% dextrin, 45% glucose,45% starch+0 5% Cr 2O 3,respectively.The results showed that there were no significant difference( P >0 5) in gain ratio and feed efficiency among the four groups.The digestibility of starch,dextrin,glucose and starch_Cr 2O 3 in grass carp were 59 26%,98 52%,98 59% and 57 37%,respectively.The amylase activities in hepatopancreas and anterior intestine,middle intestine,posterior intestine decreased after feeding,reaching a minimum level at 3 h,3～5 h,5～8 h,respectively.The amylase activities in the starch+Cr 2O 3 group were lower than those in the starch group.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
1999年第4期87-91,共5页
Acta Scientiarum Naturalium Universitatis Sunyatseni
关键词
草鱼
碳水化合物
表观消化率
利用率
grass carp
carbohydrate
utilization
apparent digestibility coefficient
amylase activity
