In pig production, in order to prevent the occurrence of disease, many large-scale pig farms and farmers will add some drugs to pig feed, but when adding drugs to pig feed, the following five aspects should be paid attention to.

一、在添加药物的时候，应根据生猪的年龄以及生长阶段进行针对性的投药。对于体质较弱的生猪以及母猪应选择敏感性比较小并且毒性小、用量少的药物，在配合饲料中应该添加容易被肠道吸收的药物，青霉素等容易被消化液破坏的药物不适合添加。

1、 When adding drugs, it should be targeted according to the age and growth stage of pigs. For pigs and sows with weak physique, drugs with low sensitivity, low toxicity and low dosage should be selected. Antibacterial drugs that are easy to be absorbed by intestinal tract should be added in the formulated feed. Drugs that are easy to be destroyed by digestive juice such as penicillin are not suitable to be added.

二、在猪饲料中添加药物的时候，应分辨药品的真假，一些没有商标、批准文号以及过期的药物不能购买和添加，同时要注意，不要一次购入太多的药物，现购现用。

2、 When adding drugs to pig feed, it is necessary to distinguish the authenticity of drugs. Some medicines without trademarks, approval numbers and expired drugs can not be purchased and added. At the same time, it should be noted that too many drugs should not be purchased at one time, and they should be purchased and used now.

三、添加药物的时候，如果一种药物就可以发挥作用，就不要添加多种药物，如果需要添加多种药物，要注意配伍禁忌。

3、 When adding drugs, if one drug can play a role, do not add multiple drugs. If you need to add multiple drugs, you should pay attention to incompatibility.

四、药物的添加剂量根据生猪的个体差异进行确定，如果是预防用药，只需要添加用量的四分之一就可以了，如果药物的残留比较明显，要禁止使用。

4、 The addition dose of drugs is determined according to the individual differences of pigs. If it is preventive medicine, only one fourth of the treatment dosage is needed. If the drug residue is obvious, it should be prohibited to use.

在猪饲料中添加药物的时候，应将饲料与药物搅拌均匀，避免生猪误食过多导致中毒，添加药物的饲料要现配先用，不能放置太长时间。

When adding drugs to pig feed, the feed and drug should be mixed evenly to avoid poisoning caused by excessive ingestion of pig. The feed added with medicine should be used immediately and should not be placed for too long.