摘要
研究了取食不同水分含量桑叶对二化性家蚕 (CSR3×CSR6 ) 5龄幼虫的影响。实验设嫩叶 (水分含量 80 %～ 85 % )、半成熟叶 (水分含量 6 5 %～ 70 % )和成熟叶 (水分含量 5 5 %～ 6 0 % ) 3个不同处理。采用标准重量分析法分析和计算各种生长、营养和营养效率指数。结果表明 ,在取食较高水分含量桑叶的处理中 ,营养指数 (包括取食量、消化量和近似消化率等 )和营养效率指数 (包括食物利用率和转化率等 )均显著较高 ,但不同处理中消化食物向茧壳的转化率及产生每克茧壳所需食物消化量差异不明显。
The effect of feeding mulberry leaves with different moisture contents on the 5th instar bivoltine silkworm (CSR3×CSR6) was studied. For this purpose tender leaves (with moisture 80%-85%), medium leaves (with moisture 65%-70%) and mature leaves (with moisture 55%-60%) were provided to silkworm. The growth, nutritional indices and nutritional efficiency parameters were studied and worked out by standard gravimetric procedure. The results indicated that nutritional parameters like ingesta, digesta, approximate digestibility, reference ratio and consumption index were recorded significantly higher in batches fed with higher moisture content leaves. Similarly, nutritional efficiency parameters like conversion efficiency of ingested and digested food into larvae, cocoon and shell were recorded significantly higher in batches fed with higher moisture content leaves. However, there was no significant difference observed between treatments in the case efficiency of conversion of digested food into shell and digesta required to produce one gram of shell.
出处
《昆虫学报》
CAS
CSCD
北大核心
2004年第6期701-704,共4页
Acta Entomologica Sinica
关键词
家蚕
桑叶水分含量
食物利用率
消化
吸收
能量转换
Bombyx mori
leaf moisture content
nutrition efficiency
consumption
assimilation
conversion
