First, the shape of the sow
As the saying goes, “The sow is fed with an eight-pecked quail, so it is easy to have a baby with a high birth weight.†That is, sows should be kept in a condition that is not fat or skinny, and that is, seventy eight percent of a quail.
Second, the principle of feeding sows
Sows have a good digestive function and strong absorption, especially during pregnancy and lactation. Therefore, do not use too much fine material, and properly increase the feed containing crude fiber, such as green feed, wheat drums, etc., and prevent constipation. For lean female sows, restore sensation as soon as possible. Overweight sows are prone to fat infiltration of the ovary, affecting the maturation and normal estrus, so it is necessary to reduce material and exercise. Concentrated material is severely deficient. The method of feeding sows with poor quality raw materials should be eliminated. Otherwise, the sows will be too thin, causing endocrine disorders, follicles can not be normal, so the heat is not normal or no heat. Sows are extremely sensitive to calcium deficiency. Calcium deficiency can cause sows to have low conception rates, fewer litters, lack of milk, and postpartum warts.
Third, sow management
(1) Adequate sunshine, moderate amount of exercise, and fresh air will maintain a good body condition for sows, normal estrus, ovulation, and physical exercise, which will have a great effect.
(2) Strengthen grazing before mating, so that sows feed on pasture, contact with sunlight, soil, and fresh air, and promote estrus in sows. For long-term
Captive sows should have a playground.
Guangzhou Zhongzhinan Supply Chain Co.,Ltd. , https://www.gzzhongzhinan.com