First, the feed should be diverse and reasonable to ensure comprehensive nutrition. Feeding pigs' green feed, roughage feeds, and concentrate feeds can only be properly matched to ensure the pigs' needs for various nutrients.
Second, pay attention to the relationship between dietary volume and feed intake. Measure the amount of feed available for dry matter content. According to the calculation of 2.5-4.5 kilograms of feed dry matter per 100 kilograms of body weight per day for pigs, the dry matter ratio of the three feeds for green feed, roughage, and concentrate feed should be 5:3:2.
Third, to achieve a good feed palatability, easy to digest. In compound feeds, if there is more energy and protein, and fewer crude fibers, then the palatability is good and easy to digest; if there is less energy and protein, and more crude fiber is contained, the palatability is poor and difficult to digest. When formulating pig feed, green fodder should be used more, and roughage should be used less, and the quality of the coarse feed should be better.
Fourth, according to different pigs choose different types of diet. In general, pigs, breeding boars and fattening pigs can use the fine material type, that is, concentrate feeds account for more than 50% of the total diet; breeding sows and gilts can use green materials, ie, green feed can account for More than 50% of the diet; rack piglets can use bran type, that is, bran feed can account for more than 50% of the diet.
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