Shancan 2
Selection and breeding unit: Shaanxi sericulture Research Institute.
Approval: approved by Shaanxi Provincial crop Variety approval Committee in 1981 and recognized by the National crop Variety approval Committee in 1994.
Variety registration number: GSI1003-l993.
Variety source: (122x Su, 5X226X Su 6).
Characteristics: Quaternary hybrids. The physique is strong and easy to raise, the cocoon yield is high, and the cocoon silk quality is better. The average cleanliness is gi.65, the size of cocoon silk is 2.967D, the relaxation rate is 83%, the length of comfortable silk is 995.3 meters, and the cocoon shell rate is 25.44%.
Main points of feeding: pay attention to adjust the starting point of the embryo before turning green, protect the dark after the silkworm eggs turn green, and be sure to make the embryo develop in one. The young silkworm has strict requirements on the quality of the leaves, and it is appropriate to be mature and tender. Expand and balance the seats in time and go to the mulberry at the right time. On the 3rd-7th day of 5-year-old, pay attention to the full feeding of good mulberry, strengthen the feeding management, and serve in batches.
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Breeding New varieties of Silkworm in Hubei Province
The new silkworm varieties E Bombyx mori No. 3 and E Silkworm No. 4 won the first prize for scientific and technological progress in Hubei Province not long ago. Compared with Huanghe × Zhaoxia, the main autumn variety in Hubei Province, E silkworm No. 3 has strong resistance, the unified life rate of insect pupae is more than 92%, and the yield is high, with a cocoon yield of 33.95kg, an increase of 9.94%. The cocoon shell rate is 24.83%, the length of one cocoon is 1150 meters, the length of Jieshu silk is 941 meters, and the silk emergence rate is 17.88%, which is increased by 8-1% respectively.
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Feeding rabbits with silkworm faeces is effective
Silkworm faeces has high nutritional value, crude protein content is 15.4%, second only to bran, higher than rice bran and grass, it is a good livestock feed. Feeding livestock and poultry with silkworm excrement often has good results. 1. Silkworm excrement feeding pigs can save a lot of concentrated feed, pigs gain weight quickly per unit time, and the slaughter rate is high. After sow eats silkworm excrement, milk secretion increases. Second, silkworm excrement feeding sheep milk secretion increased, wool production, sheep hair length can reach more than 14 cm. 3. Feeding silkworm excrement to cattle can make
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