摘要
测定桑叶粉及基础饲料中钛、铁、硒、稀土元素的含量,分别为61~92、520~1000、0.384、5.5mg/kg和37、650~710、0.414、5.4mg/kg。在基础饲料中以6.7~52.2mg钛/kg饲料剂量添加柠檬酸钛,对1~2龄蚕的生长发育未见有促进作用;以柠檬酸混合稀土、柠檬酸钟、柠檬酸镧形式向基础饲料中加入17.4~141.6mg/kg饲料的混合稀土或其单体元素铈和镧,其生长发育没有促进而略受抑制。稚蚕饲料中添加1%磷酸高铁(相当于2400mg/kg饲料),稚蚕期的生长发育有明显促进,促进程度随添加时间的延长而进一步加大,这种促进作用不是通过改变饲料适口性来实现的。
The content of titanium,iron,selenium,rare-earths in mulberry leaf powder andbasic artificial diet was determined.It was 61~92,520~1000,0.384,5.5 mg/kg in theformer and 37,650~710,0.414,5.4mg/kg in the latter,respectively. No obvious ef-fect on promoting the growth and development of silkworms of 1~2 instars was ob-served while adding titanium citrate at 6.7~52.2 mg titanium per kg diet.When mixedrare-earths,cerium or lanthanium were added at 17.4~141.6 mg per kg diet with theircitrates,the growth and development of the silkworms was not promoted hut slightlyinhibited.When 1% ferric phosphate was added to the diet(corresponding to 2400 mgiron per kg diet),the growth and development of the young larvae was obviously pro-moted,and its extent was greater as the period of adding was prolonged.Yet this effectwas not due to the improvement of the diet's palatability.
出处
《蚕业科学》
CAS
CSCD
1996年第3期145-149,共5页
ACTA SERICOLOGICA SINICA
基金
人事部回国留学人员科技项目
中国农业科学院院长基金
关键词
家蚕
人工饲料
微量元素
Bombyx mori Artificial diet Trace element