1. The latest introduction of stress to the Belgian Pitlan genotype CT type is less sensitive to stress, but intense irritation will still cause stress, so in the daily production should pay attention to the following points: (1) when boars participate in breeding There must be proper exercise time. (2) When the pigs are turned around, try to make original nests, and the pigs should be firm to prevent fighting. (3) When the pig walks, it should try to hurry and rush, and it must not be forcibly driven or strenuous exercise. (4) It is best to have litters on the ground to give birth, and then go into bed after giving birth. (5) In the hot summer season, cooling facilities such as electric fans and conditional installable air conditioners should be provided for male and female sows, especially litter sows. (6) During transportation, excessive crowding, overheating or good ventilation should be avoided. Do not force binding when getting on and off the train. You can inject a sedative before transportation. (7) If stress is found, stop stimulation immediately, keep quiet, pour cold water on the neck, water slowly, and do not spray it all over the body. Do not inject sedative drugs when stress occurs. 2. Dystocia Piltland pigs are more likely to have a difficult-to-produce sows during their first-mother sows (rarely seldom-born sows). The reason is that the back muscles are full and the birth canal is incompletely opened. The countermeasures to prevent it from occurring are: (1) To extend the mating age, the initial period of the Pietrain is generally 8 months, and the apparent weight of the mating month should be 11-12 months. (2) Strengthen the exercise during the second and third trimesters, and the nutrient concentration should not be too high. (3) Use prostaglandins to increase calving by 1-2 days than the expected date of birth. It is better to control the calving during the day and facilitate midwifery (usually on the same day.) One shot in the morning and the next day begins to give birth.) (4) When dystocia occurs, midwifery should be performed. Midwives should not be in a hurry, nor can they damage the birth canal. Arms and midwifery instruments must be thoroughly disinfected, and the number of arms entering the birth canal should be minimized. The uterus should be flushed within 7 days after birth to reduce inflammation. Prevent the next estrus or breeding difficulties. (5) When leaving a seed, try not to select those pigs with hindquarters that are too small and have a small cunt as a gilt. 3, to prevent the leg disease Pietrain before and after the heavy negative limbs, and do not like exercise, prone to leg problems. Exercise should be strengthened to ensure that each pig is more than 1 hour per day, especially pigs in the middle and late stages of fattening. In addition, the stocking density cannot be too great. Conditional breeding can be carried out outside or grassland. Relieve the parts of the wearer when they are lying and promptly treat them. China Agricultural Network Editor
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