什么叫HI？HI产生的原因？如何降低饲料HI？
参考答案：
HI是指绝食动物在米食饲料后短时间内，体内的那部分热能，热增耗以热的形式散失。
HI产生的原因：
①消化过程产热；
②营养物质代谢做功产热；
③与营养物质代谢相关的器官肌肉活动所产生的热；
④肾脏排泄做功产热；
⑤饲料在胃肠道发酵产热。
措施：
①利用全价饲粮饲喂；
②补充矿物质Vit，如P，Mg；
③添加部分油脂代替碳水化合物。
What can you do to keep healthy? Perhaps for children, healthy eating is one of 41 things. Here are some ideas about how to eat healthily. A good breakfast is very important to children. It’s necessary 42 breakfast in the morning. But some children often go to school 43 breakfast, just because they want to sleep a little longer. Remember that a good breakfast will help you study better. “My dream is that all the Chinese children can get half a kilo of milk a day.” the Chinese Premier( * * ) Wen Jiabao said this during his 44 to a milk farm. Milk is also very important to children’s health. It makes children 45 . It’s better for you to have a glass of milk 46 going to bed. That will help you have a good sleep. Having healthy food is also very important. That 47 eating different kinds of food, especially(尤其是) fruit and vegetables. Don’t eat 48 chocolate or ice cream. Some children love eating fast food, but it is not good for their health. Try to eat healthy food 49 fast food. Have healthy eating habits, 50 you will have a strong body.
|