1, on time: This means that the purchase of pigs should be appropriate, the best choice in the spring. Because the gestation and lactation of sows are just in the cold winter, the viability of the virus is the worst in this season, and the epidemic is the least. The piglets are not susceptible to the virus. Even if piglets cannot be purchased in the spring due to conditions, they should avoid buying pigs in the lunar calendar in August. During this period, the pigs have the highest incidence and mortality, which is commonly known as “bad Augustâ€.
2, near: There are two meanings. First, if there are ideal hybrid piglets in the local market, they will be purchased locally so that infectious diseases and other adverse effects can be avoided. Second, if it is better to choose the same litter for long-term piglets, it is not easy to raise the same litter of pigs in the same circle. The occurrence of fighting, fighting, chasing and other phenomena, live in harmony with each other, long and fast slaughter at the same time, the overall high economic efficiency.
3, ears: to buy ears with piglets. The ear number is the gap in the pig's ear, which was cut by the veterinarian during the injection of the swine fever vaccine. This pig is not susceptible to swine fever.
4, look at: (1) see the size of the head and the trunk is commensurate. Properly proportioned piglets are normal in development, healthy and disease-free; (2) look at foreheads, piglets with wide and flat foreheads that develop rapidly, and the forehead that is slightly outburst and wrinkles are too much indicates that the old phase, commonly known as “small old pigsâ€, grows slowly; (3) look Eyes, healthy pigs have bright eyes and eyes, and pigs often have red eyes or eyelids; (4) Look at the nose. Healthy pigs have long noses, large nostrils, clean nose, and wet nose; (5) Look at the mouth and the length of the fine pig's fork The mouth is round, the lips are thin, and the upper and lower lips are flush. This kind of pig is not picky eaters and grows fast.
5. Listening: Healthy pigs breathe smoothly and rhythmically, and their calls are loud and loud, and their groans are buzzing. The pigs are squeaking, hoarse or coughing, breathing shortly wheezing, flapping their noses, or breathing in the abdomen. Body tremors.
6, heavy weight: As the saying goes "heavy weight is not clinging to light", buy the same litter of piglets to pick the largest weight. The larger the weight of weaned piglets, the faster the development and the more significant the weight gain. Generally 50-60 days of age piglet weight should reach 10-15 kg, piglets below this weight, generally do not buy.
7, see hair: to pick thin, thin, tender piglets. This kind of pig fur is smooth and oily, the skin is pink, the body is good, and it grows fast. The pigs with “thick skin, thick hair and old meat†are commonly referred to as “Iron pigs†and are slow. The most obvious feature of sick pigs is thick, unkempt and dull fur.
8. Skin selection: The skin of healthy pigs is smooth and elastic. First of all, we must pick out piglets that have no defects. If swelling, ulcers, or small nodules are found on the surface of the skin, the cause must be identified. For example, there are multiple red spots on the surface of the skin or small red spots on the tip of the needle, and finger pressure does not fade, indicating that the pig may have an infectious disease.
9, pick belly: First of all, choose to eat large pot belly pig, this pig is good appetite, long phlegm; Second, pay attention to the selection of thoracic and abdominal blood vessels, especially breast veins exposed, skin loose, short pigs with a short anus. The method of selection is to lift the two hind legs of the pig. If the skin at the bottom of the abdomen (the middle of the breast) frequently swings to both sides, the blood vessels on both sides of the breast are clear, indicating that the skin is loose, the vessels are large, and the body condition is good.
10, check the stool: healthy pig manure round, shiny, urine output and normal color, body temperature between 38-39.5 °C. The pig's feces are dry or pulpy, with bloodshot or mucus, dirt around the anus, less urine and yellow, body temperature below 38 °C or above 39.5 °C.
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