Method for breed porker by using Changbai mountain wild boar as male parent and Songliao black pig as female parent
A technology of male parent Songliao and black pigs, which is applied in the breeding field of meat-eating pigs to achieve the effects of strong disease resistance, simplified seed production and unique meat flavor.
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Embodiment 1
[0013] Two-line mating hybridization is adopted, that is, the hybrid pig of Changbai Mountain wild boar and Songliao black pig is set as the male parent (A), and the Songliao black pig is the female parent (B), that is, A×B two-line mating cross.
[0014] According to the general principle of specialized male-matrilineal division of labor, combined with comprehensive consideration of factors such as trait heritability, genetic correlation, heterosis and selection intensity, the main selection traits of the matching line are determined to be two growth and fattening traits: growth speed, meat flavor and reproductive traits 1: litter size; meat quality traits: the specific division of labor is as follows, the father (A) line is mainly selected for thick backfat, taking into account the growth rate and the test results of combining ability, and is bred into a line with lean meat and good meat quality and flavor; the female (B) line Because of the large amount of seeds required, li...
Embodiment 2
[0019] Build a population:
[0020] According to the performance division of each line and the status in the supporting breeding system, the selected breeding pigs are strictly identified and selectively bred. The paternal line (A) of Changbaishan black pigs has a scale of 20 males and 100 females, 10 bloodlines of male pigs, and 40 bloodlines of sows, with the same body shape and appearance; the female parental line (B) is Songliao black pig, a local pig breed breeding strain, and the core The group size reaches 30 males and 300 females.
[0021] Breeding measures:
[0022] ①Technical route: Guided by the theory of modern genetics and breeding, guided by the latest theory of the supporting system, adopting the technical route of combination of closed and incomplete closed-generation selection, with a generation interval of 1.5 years and one generation, the reserve breeding pigs are selected and retained The ratio is: boar A line 10:1, B line 5:1; sow A line 2:1, B line 3:1....
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