Study on the stabilized rearing of wild silkmoths
Grant-in-Aid for General Scientific Research (B)
|Allocation Type||Single-year Grants|
|Research Institution||KYOTO INSTITUTE OF TECHNOLOGY|
ICHIDA Masatoshi K.I.T.Faculty of Textile Science, Associate Professor, 繊維学部, 助教授 (40223101)
FURUSAWA Toshiharu K.I.T.Faculty of Textile Science, Professor, 繊維学部, 教授 (70127166)
|Project Period (FY)
1993 – 1995
Completed(Fiscal Year 1995)
|Budget Amount *help
¥6,600,000 (Direct Cost : ¥6,600,000)
Fiscal Year 1995 : ¥1,300,000 (Direct Cost : ¥1,300,000)
Fiscal Year 1994 : ¥1,400,000 (Direct Cost : ¥1,400,000)
Fiscal Year 1993 : ¥3,900,000 (Direct Cost : ¥3,900,000)
|Keywords||Wild silkmoth / Artificial rearing / Aseptic rearing / Antheraea yamamai / Supercooling point / Year-round rearing / 卵耐凍性 / 無菌平板給餌 / 低コスト人工飼料 / 発蛾同調化|
1.Composition of artificial diet for wild silk-moths.
We improved composition of artificial diet with the use of the Japanese oak silkworm, Antherses yamamai
The percentage of dry leaf powder exerts effect on the growth of the Japanese oak silkworm larva, and the feeding 25% feed acts so as to decrease a body weight, and can't molt at 2nd instar.
It was considered that dry leaf powder concent was in need of 40%.
The non-sugar feed increased the non-excuviated larva. It was considered that sugar content was in need of 10%.
There was every possibility of introducing of aseptic rearing method by disin fection of eggs, rearing case, and stavilization of feed.
3.Comparison with the supercooling point.
As the result of the investigation on the surercooling point of eggs, the supercooling point was considered to be about -20ﾟC in Antheraea yamamai, about -25 - -26ﾟC in Caligula japonica (Moore) and Rhodinia fugax (Butler) , about -29ﾟC in Caligula jonasii (Butler) .
4.Limit of storage life of hibernating eggs
As the result of the investigation on the relation between the storage temperature and storage life of hibernating eggs, the limit of storage life was considered to be about 7 months at 5-2.5ﾟC,about a year at 2.5-2ﾟC after the spawning tim.
Research Products (6results)