Pregnant sows have the following two feeding methods:
First, positioning bar feeding
The positioning bar is fed from the maternal sow until one week before the farrowing and is kept in a monomer column of 60-70 cm long and 2.2-2.2 m long. The advantage of positioning bar feeding is that it can reasonably supply the ration according to the pig's body condition and stages, and it won't collide between sows. It can not only save the feed but also reduce the cost, but also can effectively guarantee the growth and development of the fetus. The disadvantage is that it is not free to exercise. Sows have more limb and foot disease, and the proportion of stillbirth is greater. The difficult-to-yield rate is higher, and the sow's useful life is shortened.
Second, free-range feeding
The sow is used for free-range sows to be free to move, reduce the sow's limb and foot disease, reduce the proportion of stillbirth, reduce the difficult birth rate, increase the sow's useful life.
Sow backyard breeding has the following modes:
1, limit bar + electronic feeding station
It is gilts or empty sows that are fed in the limit column for the first 5 weeks after mating because the embryos are unstable, prone to miscarriage or stillbirth in the first 5 weeks after mating, so they are fed in the limit column, and 6 weeks are required. In the first 5 days of the bed, the sows that were allotted with the same species were placed in one lap and finely fed precisely by the electronic feeding station. Each lap could hold 40 heads, thus ensuring the sow's eating time. This feeding mode can solve the problem of precise feeding for sows in free-range, and can also avoid the problem of early abortion after sowing, but the feeding mode is to move the sows from the limit column to the electronic feeding station. Hello, increase the workload.
Reserve sows/empty sows-->gestation sows-->limit bar feeding-->electronic feeding station small circle feeding->upper maternity bed
Electronic feeding station feeding
It is the sow’s entire pregnancy period that was fed at an electronic feeding station, but the sows were easily miscarried in the early days of Huaiyu. To solve this problem, most large-scale swine farms now use electronics from gilts and empty sows. Feeding stations are fed so that the gilts or empty sows have adapted to each other during this period of time. There is no more biting and competition in the ground, and domestication has been adapted to the feeding of electronic feeding stations. After feeding, no domestication is required after mating, and it is safe to live in a circle. This mode is the most rational feeding mode. It can both feed in a precise manner and avoid the problem of nourishment. However, due to the use of electronic feeding stations from gilts and empty sows, the equipment costs are higher. Suitable for large farms.
Reserve sow/empty sow –→Electrical feeding station small circle feeding –→Upper bed
Small circle feeding + limit bar feeding
Sows with similar breeding time, little difference in body size and temperament are kept in the same lap, feeding 5-6 pigs per lap and moving to the limit bar for feeding during the later period of pregnancy. This ensures the free movement of the sow. The rate of stillbirths is reduced, the difficult birth rate is low, and the useful life is increased. However, this feeding pattern may lead to problems in the pigs' pre-feeding inhomogeneity and cannot be precisely fed, and is suitable for 50-150 heads of free-range households.
After sowing, the sow -→ feeding in the small circle -→ feeding in the limit bar
Limit bar feeding
The sow's entire pregnancy cycle was fed in the limit column, but left an open space behind the limit bar. After the sow was fed, she rushed to the open ground and reached the limit column at the feeding time. Feeding. This also ensures that the sow's free-range and precise feeding, but the large area, cutting workload, suitable for small sows are not too much, the funding is not too full of small farms.
Limit bar feeding -→Activity on empty ground -→ Feeding in limit bar
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