What are the tips for sow feeding management?

(Agricultural Wealth Network) (1) Make sows give birth during the day

1~2 ml Prostenol Injection was injected intramuscularly into the neck of sows at 9~11 am 1~2 days before parturition. 98.2% of sows could parturition in the next day, the effective rate was up to 100%, and the survival rate of piglets was over 98%.

(2) Make sows give birth in spring and autumn

Sows farrowing in spring and autumn can improve the survival rate of piglets and achieve 5 births per 2 years. The first litter can be arranged to mate in November ~ December and give birth in March ~ April of the following year; the second litter can be arranged to mate in May ~ June and give birth in September ~ October.

(3) Improve sow birth rate

From 3 days after weaning to oestrus, sows are fed 400 mg of vitamin B, 400 mg of carotene and 200 mg of vitamin E every day. After breeding, the dose is halved and fed for 3 weeks. Each litter can produce 2~3 more piglets.

(4) Early pregnancy diagnosis of sows

Sows breeding 3~4 weeks, with the thumb and index finger to press the 9 th thoracic to lumbar spine between the waist and back, such as slightly arched back that is pregnant, concave back for not pregnant.

(5) Prediction of sow due date

The expected date of birth is 3 months plus 3 weeks and 3 days. For example, the sow breeding date is April 20, and the expected date of birth is: 4+3=7 (months), 20+21 (3 weeks)+3 (days)=44 days, i.e. August 13.