Jiaji Duck in Hainan
The average duck weighs about 3kg, but the average weight of Jiaji duck reaches about 5kg. They are born just like ducklings, except that they have hooked claws. Jiaji duck is a fine duck introduced from abroad by overseas Chinese of Qiong nationality more than 100 years ago, that is, muscovy duck. After long-term breeding by people in Jiaji Town, it was named Jiaji duck. Compared with other muscovy ducks, it is bigger and has better meat quality. This is due to the special feeding method, generally ducks 60 days out, and Jiaji duck in 60 days after more than 20 days to fatten, eat sweet potato, rice made of special food.
Under normal circumstances, duck breeding time is long and late, which increases breeding cost and reduces benefit accordingly. According to the introduction of farmers: raising Jiaji duck not only did not lose money but earned money. This is because after a special fattening period, duck meat will not only become fat, fat will also penetrate into the meat, a thin layer of fat will be sandwiched between the skin, duck meat will become more tender and delicious after cooking, which has been recognized by consumers. Over time, Jiaji duck will become famous, so it is reasonable for it to be one of Hainan's four famous dishes.
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Post-weaning multisystemic wasting syndrome 2
(4) the prevention and control of PCV2 has strong resistance to the inactivation of many detergents and disinfectants, and the effect of drug application is limited, so it is very important for pig farms to change feeding techniques, improve sanitary conditions and reduce stress in different periods in order to reduce "infection pressure" (including PCV2 and any other pathogens). 4.1 during parturition 4.1.1 all in and out, thoroughly wash and disinfect between two batches of pigs 4.1.2 wash sows and deworming before delivery
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Environmental countermeasures to reduce stress in pigs
1. When controlling the heat stress of the feeding density, the feeding density should be strictly controlled in order to facilitate the heat dissipation and air circulation of the pigs. the suitable feeding density is generally 0.74 square meters for the pigs less than 45 kilograms, and 0.37 square meters for the leaky floor. For pigs greater than 45 kilograms, the solid floor is 0.93 square meters per head and the leaky floor is 0.56 square meters per head. 2. to provide a suitable environment, the orientation of the pig house should be in the north-south direction to reduce
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