Protein is an indispensable element in the growth and development of pigs, lack of it, growth is blocked, poor development, so many farmers in the choice of feed, the first look at protein, that the protein is high, the quality is good.
Therefore, a lot of feed enterprises in order to meet the farmers' consumption psychology, some on the label the, obviously crude protein only 36%, was written in 40%; some in the feed to add the poor quality of blood meal and feather meal or non protein nitrogen, the content of crude protein in feed is very high, and feed quality is poor. In fact the protein nutrition is ultimately the amino acid nutrition, besides a lot of protein deposition requires energy behind, high energy content and can be used to feed only the essential amino acid content is high and the balance, only high quality protein feed, protein can be fully utilized.
For example, blood meal, although the crude protein content of more than 80%, but because of its low digestibility, amino acid imbalance, low quality. Moreover, the protein in the diet is higher, while the energy is lower, the protein can not be fully utilized, it is not only harmful but harmful.
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