Main points of sow feeding during empty period

Sows will enter the lactation period after delivery, and the stage when piglets are only re-bred after weaning is the empty period of sows. The management of this period is extremely important, which is related to the quality of the next litter. So how to manage the empty period of sows? Let's get to know it.

1. Environmental conditions

The main point of raising sows in empty period is to urge them to estrus as soon as possible and breed in time so that they can conceive again, but the physique of sows after weaning has not been fully recovered, so the breeding environment must be kept dry and clean, and the temperature and humidity should also be suitable. should not be too high or too low, to maintain good ventilation and air permeability to ensure fresh air. If the feeding environment is poor, it will affect the estrus, ovulation and mating pregnancy it supports, so the breeding environment is a prerequisite.

2. Strengthen feeding

Sows can be in estrus normally after about a week of weaning, and at this time the mating pregnancy rate is very high, more than 90%, but many sows can not be normal estrus, the main reason is poor fat or inflammation of the birth canal. Many farms in sows continue to secrete milk leading to mastitis, so a large number of reduced feeding, resulting in inadequate nutrition of sows, thus unable to recover normally, this is the wrong feeding method. Should be changed in time, sow feed for aphrodisiac sows or backup sows, can not continue to feed lactating sows, adding a large number of vitamins and antibiotics in the feed, can prevent mastitis, daily feeding volume of 3-4 kilograms, this can promote sows to restore fat as soon as possible, increase the number of ovulation.

3. Methods of controlling normal estrus in sows.

When the sow is not in normal estrus, the boar can be used to induce oestrus, and the test boar can be used to chase the empty sow that is not in estrus. Through the hormone smell and contact stimulation secreted by the boar, the pituitary gland of the sow can secrete hormones and promote its oestrus ovulation. At this time, it is a simple and feasible method in breeding, and the effect is better. You can also play boar courtship tapes, record conditioned reflexes to promote ovulation, or merge non-estrous sows into the enclosure of estrus sows to promote ovulation in empty sows through stimulating behavior.

The above is the sow empty breeding points introduction, hope to help you, want to know more related knowledge, please pay attention to us.