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Pig breed (form a complete set is fastened) authorized level
From;    Author:Stand originally
Pig breed (form a complete set is fastened) authorized level (try out) this standard applies to a pig those who breed breed and department of form a complete set is authorized. One, breed is authorized condition 1, have common source, consanguineous and clear. Local breed distributings the area at opposite segregation, not with other breed cross. Via the breed of cross seed selection, from group breed should be in above of 4 for generations. 2, blooded foundation sow achieves 1000 above, those who accord with breeding index requirement is individual should be in 70% , namely (U- ) / S < - 0.5244 (U is breeding index, it is group average, s is group standard deviation) . What concern without close predestined relationship in 3 generation is genealogical and due 10 above. 3, offer fair, sow weight matchs first, produce at the beginning of the sow, via producing average kitten number and Yo become number, 21 days of age checks are serious, the day that fattening pig reachs butcher weight age, fat of live body back is thick, day weightening finish, stuff is heavy than, butcher rate, body carries fat on the back on average thick, eye flesh area, the function index such as rate of fleshy tone, lean lean. 4, the transmissibility of main economy character stabilizes the group basically (number of kitten of requirement coefficient of variation is in 20% the following, day weightening finish and rate of body lean lean be in 10% the following) ; The constitution is hale, bodily form appearance agrees basically. 5, healthy level should accord with concerned requirement. 2, form a complete set is authorized condition 1, comprise by strain of two above specialization, include patrilineal and maternal, have fixed cross combination and corresponding commodity name. 2, plant via spot of this professional committee expert selectives examination or the state is being had inside nearly 3 years pig quality inspection detects of the center determine proof, commodity pig productivity can be stable, product normalization, get used to market need. 3, every maternal foundation sow achieves 300 above, every patrilineal foundation sow achieves 100 above, and what concern without close predestined relationship in 3 generation is genealogical and due 5 above. 4, there is function to accord with breeding index in fastening a group originally in person. 5, offer index of main production function to be the same as breed authorized condition the 3rd. 6, healthy level should accord with concerned regulation


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