Prevention and Treatment of Swine Zombie

Stiff pig, commonly known as "mat Wo Zi pig", "little old pig", "iron pig". In the stage of growth and development, due to the influence of some adverse factors, the development of pigs is blocked and the growth is stagnant. Although this kind of pig is old, but the individual is very small, rough-haired, extremely thin, forming a large figure in the middle of the tip of the two ends, eating only feed does not gain weight, so that people who eat only feed suffer great losses.

1 performance characteristics

The main manifestations of stiff pigs are small, thin, stagnant growth, abnormal mental excitement, restlessness, rough back hair, dull skin, reduced elasticity, bent waist, anorexia, dry and hard faeces, and some sick pigs occur alternately with constipation and diarrhea. Undigested feed can be seen in feces, some stiff pigs are addicted to different phenomena, like eating wall soil, and so on, there is no obvious change in body temperature. Feeding for a long time, only eating food without gaining weight, the mortality rate is very low.

2 Preventive measures

2.1 prepare full-price feed for all kinds of pigs according to pig feeding standards. To achieve comprehensive nutrition, fresh quality, no mildew deterioration, non-toxic. Prevent the feed from being single, make a reasonable collocation of green, coarse and concentrate feed, and pay special attention to the balanced supply of protein, amino acids, minerals and vitamins.

2.2 strengthen the feeding and management of sows during pregnancy and lactation. It depends on the fat feeding: 70% fat breeding of sows and 80% fat birth. Don't rush to feed after delivery, you should feed less and add more frequently. One week later, the sows were provided with adequate nutrition, increased milk production, so that suckling pigs eat enough breast milk.

2.3 Scientific delivery, nursing, and reasonable nipple fixation for piglets. The piglets should be supplemented with iron and water at the age of 3 days, and the piglets should be fed early at the age of 5 ~ 7 days. The delivery room should be kept clean, dry and warm, with a temperature of not less than 17 ℃. The incubator of piglets was 32 ℃ ~ 28 ℃ in the first week and 28 ℃ ~ 25 ℃ on the 8th ~ 35th day. Weak piglets had better be fixed in front of the nipples.

2.4 do a good job of weaning piglets and minimize stress. To achieve the "three transitions" of feed, environment and feeding management. Suckling pigs are fed early and weaned in the same nest. Food should be restricted at the beginning of weaning, and the temperature of weaning piggery should be raised appropriately.

2.5 do a good job in the prevention of various diseases, establish and improve pig immunization procedures, and be vaccinated on time. Regularly dispel internal and external parasites and reduce the occurrence of diseases. Once the disease occurs, it should be treated timely and effectively.

2.6 strengthen the selection of boars and sows. Special attention should be paid to the character of sow nipple. The pig's two rows of nipples had better be arranged in parallel, the total number of effective nipples should be more than 7 pairs, no accessory nipples, blind nipples, each nipple must be full, eight-character valgus is better.

2.7 inbreeding should be strictly prevented, and the increment of inbreeding coefficient in each generation shall not exceed 2%. When selecting or buying breeding pigs, genealogy should be strictly examined so that there is no blood relationship between breeding pigs as far as possible. Hybridization between different breeds or strains should be promoted in commercial pig farms to produce heterosis and reduce the incidence of stiff pigs.

2.8 strictly rectify the pig herd. Timely elimination of old, weak, sick and residual pigs, the annual renewal rate of boars and sows is 25%, sows should be eliminated in principle after giving birth to 7 births, boars can only use filth.

3Therapeutic measures

The stiff pigs that have been formed should be concentrated and treated. To improve the breeding environment, the enclosure should be warm in winter and cool in summer. Keep dry, clean and hygienic. It is necessary to change the bedding grass frequently, feed full price feed, and supplement a certain amount of green succulent feed every day.

A method of treatment is introduced for reference: on the first day, 2% trichlorfon was sprayed on pig body, pig house wall, floor, utensils, etc., once in the morning and evening. On the second day, parasites were expelled and levamisole was injected intramuscularly at 8 mg per kilogram of body weight. No medication was used on the third day. On the 4th day, each pig was injected with inosine 2 ml and vitamin B12500 micrograms intramuscularly. Once every other day from now on. Generally, after 3 times of injection, the pigskin is ruddy, the coat is bright, and the appetite increases.

For stiff pigs with small belly type, 2.5% calcium phosphate can be added to the feed; for stiff pigs with big belly type, vitamin B1 can be injected intramuscularly; for pigs with dry skin, vitamin An and vitamin D injection can be injected intramuscularly; for pigs with scabies, trichlorfon and laisuer mixture can be used, that is, 1 part of trichlorfon, 2 parts of Lesuer and 100 parts of warm water are mixed well and applied to the affected part once a day for 2 days. It can be cured by repeating once after 7 days.