Selection and Scientific feeding of breeding Boar

The choice of breeding boar. When selecting a boar for breeding, the appearance requires a grayish black or brownish red coat, thick and thin hair, small ear tip, long mouth tip, small head and abdomen, thin and tall feet, straight back and sharp teeth. At the same time, the sexual characteristics are obvious, the forequarters are deep and wide, the sexual function is exuberant, and the development of testis is symmetrical. At the age of more than 18 months, the male wild boar has strong mating performance because of its tolerance to rough feeding, fast feeding speed, large food intake and not picky eating. In addition, semen can also be collected from the vulva of newly bred wild boars for sperm quality examination, and sperm motility must be above 0.6. Generally speaking, purebred boars that conform to the characteristics of wild boars should be selected and reserved as breeding pigs. If the offspring of special wild boars crossbred between wild boars and domestic pigs are left behind, the offspring will have atavism, that is, the pigs produced will not look like wild boars but look like domestic pigs in part. Therefore, the special male wild boar of binary hybrid should not be reserved for breeding. If limited by conditions, when not using special wild boars as breeding boars, three-way hybrid special wild boars with more than 70% of wild boar consanguinity should also be selected as breeding pigs, and inbreeding should be prevented in terms of blood relationship, so that their offspring have strong disease resistance and grow rapidly.

To prevent the boar from getting too fat. Male wild boar was originally a wild animal, with leaves and weeds as the staple food, and this characteristic was also retained under artificial feeding. 60% to 70% of the feed was mainly green feed such as grass and green vegetables. On the other hand, some farmers use the experience of raising domestic pigs to feed boars with full-price feed, which not only greatly increases the cost, but also because there is no feed restriction for the early growth of back-up breeding pigs, coupled with the high nutrition level in the diet, the boars are overweight and overweight, which makes it difficult for boars to climb or sows can not stand the climbing of boars, which leads to difficulties in mating or normal breeding. Therefore, we should restrict the feeding of wild boars, take green feed as the staple food, and strengthen exercise at the same time.

Provide balanced nutrition. Male wild boar needs more crude protein and vitamins. If its content in diet is insufficient or out of balance, it will affect the physique and semen quality of male wild boar, resulting in less and sparse semen, poor sperm development, poor motility, decreased conception rate, and even loss of breeding ability. Lack of minerals such as calcium, manganese, zinc and selenium can also cause gonadal degeneration and dullness of libido. Therefore, there should be a balanced supply of nutrients for breeding boars. Feed rich in high-quality protein, such as fish meal, soybean meal, shrimp and silkworm chrysalis, should be fully supplied all the year round, and 1 egg or 1 cup of milk can be supplemented during mating period, and more green feed rich in vitamins should be fed; usually, attention should be paid to the supplement of bone meal, mineral or shell powder.

Strengthen the exercise and strengthen the physique. Some farmers overuse the wild boar, or do not force the boar to exercise, resulting in a decline in the physique of the boar, resulting in dislike or rejection. Such boars should strengthen their exercise and exercise for 1-2 hours a day, with a distance of 1.5-3 kilometers, which is an indispensable measure to strengthen the physique of boars, ensure their exuberant sexual desire and improve sperm motility.