The behavior of the pig作文400字

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　　Because of scientific experiments, I university in 1989 ~ 1991 in Paris,northwestern university in the United States from 1997 to 1998, every month to coexist with a pig for a long time. My job is in making all kinds of pig heart and the aorta has yet to carry out the surgery.Our animal center of pigs with ordinary pigs, they are very lovely. They are collective captive in the large room, skipping played with, as if is still live in the cottage. Actually do more than the farmhouse here such as "pigs" : constant temperature, humidity, uv lamp and covered the ground broken sawdust is one to two inches thick, the toilet is fixed in the corner. Small creatures to take a bath every day, so they all fuzz regardless of black and white, is very bright and clean. Most people think the pig is dirty and it is too wronged them. The pig is not only clean, it is still very heavy affection, is willing to be alone. If the technician will respectively in their own small cage, or quotas in pigs, they become listless all day, unhappy. Every pig ear wearing a small metal "id card", like a earrings, above indicate that the pigs,Whenever they withstand test operation, and vitality to gulp down, we will be happy.