摘要： 北方鱼类越冬期肠内含物多为有机碎屑、藻类、水草、底栖生物及泥沙。肠管充塞度从前肠到中、后肠逐渐增加，最高达4级。不同越冬水体，不同鱼类肠内含物组成及充塞度差别较大。对越冬草鱼进行投喂，可增重，提高越冬成活率。
关键词:
北方鱼类,
越冬期,
肠内含物,
充塞度,
摄食
Abstract: Under low temperature of winter season,wintering fishes can absorb nourishment from intestinal contents(organic pieces,algae,water plants,silts).The saturation and composition of intestinal contents change with different types of water and fishes.The saturation in the intestine is increased gradually from front intestine,and the latter part of it has the highest saturation and can reach fourth degree.The research result showed that feeding wintering fishes could insure and increase survival rate and growth.
Key words:
Wintering fishes,
Intestinal content,
Saturation,
Absorbing
中图分类号:
刘国才, 温海深, 崔雅杰. 北方鱼类越冬期肠内含物组成及冰下摄食情况[J]. 华北农学报, 1996, 11(3): 128-132. doi: 10.3321/j.issn:1000-7091.1996.03.025.
Liu Guocai, Wen Haishen, Cui Yajie. Itestinal Contents of Wintering Fishes and Their Absorbing Nourishment Under Ice[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1996, 11(3): 128-132. doi: 10.3321/j.issn:1000-7091.1996.03.025.