Effect of Different Periods of Cold Storing of Bivoltine Eggs on Subsequent Generation Rearing Performance
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Abstract
Different methods of cold storing of bivoltine eggs are in practice to postpone hatching. Bivoltine eggs undergo hibernation if they are not acid treated within 20 − 24 hrs of oviposition, which depends on race, ambient temperature and humidity. The schedules adopted for cold storing include hibernation schedule (Hib), ordinary chilling (OC), short term chilling (STC) and acid treated layings (AT). Peanut cocooning race NB4D2 has been subjected for the present assessment. Cocoons harvested from the crop pertaining to all the four methods of cold storing have been used for producing different combinations and acid treated followed by rearing. The performance in respect of chawki loss, maximum larval weight (5th age), yield/ 10,000 larvae (no), cocoon and shell weight showed maximum values for hibernation × hibernation combination followed hibernation with OC and hibernation with AT. Lowest performance was recorded when STC batch source females were used.
참고문헌 (14)
- "Seed technological parameters of bivoltine silk-worm eggs due to refrigeration for delaying acid treatment", pp.345~348 (1994)
- "Acid treatment in relation to refrigeration of silk- worm eggs.", 35, pp.77~79 (1996)
- "Effect of difer-ent cold storing term of silkworm eggs on their hatchabilityin the acid treatment after chilling method" (1976), Training Center 6
- "Effect of cold storage on hatchabilityof egs with reference to embryonic stages" (1986)
- "Influence ofrefrigeration of multivoltine egs of Silkworm Bombyx moriL at an eye spot stage on rearing performance", pp.151~15 (1986)
- "Artificial hatching of silkworm eggs Bombyx mori after diferent chilling periods", 36, pp.47~50 (1997)
- "New technology of silkworm rearing" (1978)
- "Damages caused tosilkworm egs during preservation"
- "Effect of cold storageof multivoltine and multi x bivoltine silkworm eggs Bombyxmori L", pp.615~33 620
- "Chilling of silkworm", 11, pp.70~74 (1995)
- "Efect of long term refrigeration of eggs on hatching and rearing performance of some polyvoltine silkworm races, Bombyx mori L. in north- ern India", 36, pp.429~453 (1996)
- "Manual on silkworm egs pro-duction p 131-132" (1988)
- "Design and analysis of field experiments" (1972)
- "Impact of chilling and hydrochlorisation on the hatchability of silkworm eggs in Bombyxmori L Ph" (1982)