First, kind of situation Pittland pigs are native to Pietland, in the Buthurst area of ​​Belgium, hence the name Pietrain. Pitlan is one of the most lean breeds in the lean pig breeds in the world. It began cultivation in 1920 and was developed in Wolong in 1950. During the breeding process, the local pigs were crossbreed with French shellfish, and imported into the blood of the Thai Tamworth pigs. China was introduced from the 1980s, and the Institute of Animal Husbandry of the Shanghai Academy of Agricultural Sciences introduced French legal system Pietrain from France in the early 1990s. Beijing Shunxin Agricultural Shop The original Lee Pig Breeding Farm introduced 47 direct from Belgium in 1997, including 33 sows and 16 boars and 8 pedigrees. In 2000, Pitland was introduced from France and 27 boars were born. Second, body appearance Pittland is a large black-and-white flower, with coats ranging from grey to maroon or reddish, with medium to medium-sized ears tilting slightly downwards, body wide and short, mid-width wide, a deep ditch in the middle, full hindquarters, muscularity, and light muscles. The posterior blood vessels are exposed, and the anterior and posterior limbs are short and fine (but the current introduction of the ratio system, the law system Pietrain, the upper and lower extremities are taller and thicker), the dog's abdomen, and the head is delicate. Third, production performance 1, reproductive performance Medium breeding capacity, balanced litter size, generally 9-11 heads, strong nursery abilities, good maternity, good milk in early lactation, high milk yield, poor lactation in the middle and late, 20 weeks old litter weight 48.52.3 kg, on the 35th Weighing 87.74.8 kg. 2, fattening performance Pittland pigs have a low feed intake and have late gain weight. According to the information, the low feed intake is due to the low physiological insulin level. During the fattening period, the average daily weight gain was 720 grams, and the feed ratio was 2.8:1. 3, carcass traits Muscular fibers are thick and the fleshy meat tastes bad, but no PSE meat was found after the slaughter of the Belgian Pitlan was introduced. The body lean meat percentage was 78%, the meat yield was 83%, and the three points were 0.5 cm thick. IV. Precautions for feeding and management 1, stress The latest introduction of Belgium's Pitlan genotype to CT is less sensitive to stress, but intense irritation still causes stress, so the following points should be noted in daily production: (1) When boars participate in breeding, they must have 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 Pilkland pigs are more likely to have a difficult-to-produce primiparous gilt (the sows rarely occur) because of the fullness of the hindquarters and the incompletely open birth canal. The countermeasures to prevent it from occurring are: (1) To extend the mating age, Pittland pigs are generally 8 months of puberty, and the mating age should be 11-12 months of age. (2) Strengthen exercise during the second and third trimesters, and the nutrient concentration should not be too high. (3) The use of prostaglandins should be increased by 1-2 days than the expected date of birth. It is best to control the calving in the daytime to facilitate midwifery (usually on the morning of the first day of injection. On the morning of the next day, litter). (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 leg disease Pitlan has heavy fore and hind limbs, thin limbs, and does not like exercise, and is 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. V. Hybridization and utilization Pitlan is the ideal terminal cross male parent, which can obviously increase the lean meat percentage and the fullness of the hindquarters. Generally, the hybrid methods are: Pidu, the skin grows, the skin is big, Pidu grows up, and the skin breeds pigs. Six, nutritional needs Due to the low fat content of Petrin farms and the insufficient storage of their own fat, high energy is important when feeding compound feeds (other nutritional traits are being explored). The nutrition requirements table attached to my farm is for reference only. Seventh, summary Although the Pietrain pig is prone to many problems in feeding and management, there are also many deficiencies in the production performance, but it can not be replaced as a superior terminal male parent is any breed of pig, we only need to create a certain degree in the daily production management Conditions, continuous exploration and discussion, these problems and inadequacies are solutions. Biluochun,Maofeng,Tieguanyin,famous tea Hunan Junshan Yinzhen Tea Industry Co.,Ltd , https://www.junshan-tea.com