"Twelve Looks": A look at the mouth shape. The mouth is short and round, large and homogeneous, the mouth is deep and the jaw is thin. The mandible with relatively neat mandible and upper jaw eats much more, does not picky eaters, is easy to raise, and grows quickly. Second look at the eyes. Eyes are short, eyes are bright pigs, healthy and lively, grow well, the vast majority of disease-free. Three to see ear and nose. The nostrils should be large and commensurate with the mouth. Large and thin ears, thick and hard ears, pigs with wide ears can eat long. Four to see the neck. Not thick or thin, and have a certain length, sows can be long, boar appropriate short, fattening pigs should not be too thick. Five to see the trunk. Shoulder width. Miaozhu has a high front shoulder, a well-developed dorsal chest, a flat, straight long back, a slightly flat web, and a belly-shaped “cucumber belly”. Six to see the tail. Miao pigs are rented with their tails tailed, their tails are slightly red, their tails are thin, and they are in the shape of “D”. They not only grow faster, but also have a gentle temperament. Seven to see the teat. Teats are obvious and thin, but not less than 6 pairs. It is best to cross evenly, densely before dilute. Relatively 7+6 or relative to 7+8, 8+9 is relatively ideal. This pig has the characteristic of congenital cell division. Eight see limbs. The four legs are required to be strong, round and long and long, and the thigh muscles are plump, the hoof is large, the body length and body height are moderate, and the skeleton is large. Nine to see fur. The skin is ruddy and clean, with intercostal hair hanging down. The coat is neat, hair thin, smooth and bright. The piglets are of good constitution and grow faster. If the rough skin is messy, pale and dull, most of them are sick pigs and stiff pigs. Ten see weight. After weaning piglets are weaned, the greater the weight, the faster the weight gain during fattening, so it is advisable to purchase large-sized piglets for short-term fattening. Piglets weighing more than 10 kilograms are more resistant to disease. Eleven to see feces. Feces are discharged into strips or groups, smooth and loose as healthy piglets. The normal color of urine is light yellow. Twelve to see the spirit. Healthy Miao pigs are full of energy, stand naturally, and have a steady pace. When the pig's hind legs were lifted, the pigs did not cry or cry, indicating that the sexual children were not violent and were unresponsive to the outside world and could adapt to the new environment as soon as possible. "Six Noes": Don't buy empty belly pigs. The belly of the Miao pig is not large, indicating poor appetite. Second, do not buy hot pigs. Touching the ears of the piglets, the hot ones are mostly hot pigs, indicating that the piglets are on the pathogenesis. Three do not buy diarrhea pigs. The upper part of the anus and the upper part of the two hindlimbs are usually sick pigs with loose feces and unpleasant smell. Four do not buy dehydration pigs. Marrows are dehydrated, lack of energy, yellow urine, drooping eyelids, and not standing in the first half. Such pigs grow slowly and are prone to illness. Fifth, do not buy piglets with bad milk. To select the Miao Pigs in the same litter, the Miao Pigs should be selected to have milk on the first two teats, and the Miao Pigs on the penultimate second teat should be selected. Six do not buy pigs that are not obvious in two shades, are not well developed, and have foreign bodies discharged. If male and female pigs are used for breeding, they should pay special attention to the testicles of the boars when they look at the two yins. The size of the testicles should be obvious, uniform and tidy, and the yin sheath must be obvious. The yin sheath must have a few hard floating hairs. Boars have strong libido, and have more litters after mating. The genitals of the sow are not deformed.

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