How big is the breeding of binary sows

Binary sows need to be mated at the age of 9-10 months, and the body weight of sows should be more than 200 jin, and if they are close to the age of mating months, but the body weight is not up to the standard, they can be fed with some nutritious fodder to increase their weight to meet the mating standard.

How many breeds of primary and binary sows

Compared with the speed of sexual maturity of local pigs, the sexual maturity time of binary sows is relatively late, generally at the age of 8 months, when the weight reaches 210 jin, there will be the phenomenon of oestrus, so it is better for binary sows to grow to the age of 9-10 months, and the fat condition of sows should be strictly observed. those weighing less than 200 jin can not be mated, and nutritious feed can be fed during the period to make it reach the standard weight of breeding.

2. The method of raising binary sows

1, in the early stage according to the ordinary three miscellaneous feeding, it can be allowed to eat freely, about 180 jin of reserve sows, be sure to feed reserve sows until oestrus.

2. If the age and body weight meet the standard of mating, they can be mated at the first estrus, artificial insemination can be carried out for 2-3 times, and the deformity and viability of sperm can be checked if possible.

3. If the sow is not in estrus at the age of 8 months, pregnant horse serum can be injected to promote estrus, and No. 3 will be injected after estrus before mating.

4. After mating, pregnant sows should be fed, and then the daily feed should be controlled within 4 jin. During this period, green fodder can be added until the sows are successfully mated.

5. Pregnant sows can begin to feed lactating sows until production after 3 months, and can decide whether or not to reduce feed according to fat condition before production.

6. Before injecting chlorine in the early morning of 112-113 days of pregnancy.

7. In the process of production, oxytocin should not be used. Before injecting another dose of chlorine at the end of production, sows will eat after the end of production, during which there is no need for anti-inflammatory injections, but human amoxicillin can be added to the feed for 4-5 days.

8. Let the sows eat more lactation feed as much as possible, and during the period of reasonable immunity according to their own conditions, they will be injected with pseudomaniac nasal drip at birth, round ring plus mycoplasma at the age of 10 days, and the price of the first few kinds of Berlin is about 40 yuan. the single vaccine of classical swine fever is injected after weaning, the triple vaccine is injected in 60 days, and the pig foot-and-mouth vaccine is injected in winter.

9. Precautions for second birth syndrome: weaning at the age of 20 days, no more than 25 days old, do not feed the mother feed after weaning, but feed the pregnancy feed. 80% of these jobs will be in estrus as scheduled, and pregnant horse serum can be injected if there is no estrus.

10. Therefore, in breeding, we should first select dual sows with good quality, which can ensure the quality of sows from the source. High-quality sows not only have good physique, but also help to improve the quantity and quality of piglets.