When will reserve boars begin to adjust and use
2020-09-25 13:15:56
When the reserve boar weighs 120 kg in 8 months of age, the lyrical class begins to tune. Observe the boar on the isolation fence of the boar with strong breeding ability and learn the breeding method. When the first breeding, the proportion of males and females should be reasonable, sows should be in good estrus status so that sows do not cross the new boar, so as not to affect the active breeding of boars. Boars can't push when they are mating, they can't fight. The reserve boars begin to be used at 9 months of age. Before use, breeding and training of semen quality should be performed. The weight of the open boar should be more than 130 kg. 9- to 12-month-old boars are bred one or two times a week, and boars 13 months or older are bred three to four times a week. The resting period of a healthy boar must not exceed 2 weeks in order to avoid breeding disorders. If the boar is ill, it must not be used within 1 month. The boar must check the quality of semen once a month and twice a month in summer. If three consecutive fine examinations fail or two consecutive fine examinations fail and are associated with testicular enlargement, atrophy, low libido, lameness, and other diseases, they must be eliminated.
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