What is the current situation of the production and development of insect protein feed?

For a long time, there has been a saying in the nutrition circle: four legs are not as good as two legs, two legs are not as good as one leg, and one leg is not as good as those without legs. However, the evaluation of the nutritional value of feed is still based on the approximate nutrient analysis of the Germans, but sugar, amino acids, unsaturated fatty acids and other items have been added. From the point of view of the formulator, the measured values are difficult to be used as a basis for inference of livestock and poultry production performance. There are many raw materials of protein feed, and no more than 20 kinds of protein feed are really developed and utilized on a large scale. As the insect with the largest biological population and the highest reproductive efficiency, its nutritional value is gradually sought after by people. However, due to the "raccoon otter", "ant power god" and so on. Here, please talk about the current situation of research and development of insect protein feed and share it with friends in the forum. It is said that the research and development of insect protein feed in China is basically synchronized with that abroad. Among the main detection indicators: (1) Lysine 2.84%, methionine 0.66%, threonine 1.55%, tryptophan 0.41%, asparagus 2.36%, cystine 0.72%, serine 1.94%. Glutamic acid 5.66%, glycine 3.06%, alanine 2.07%, valine 1magic 84%, isoleucine 1.20%, leucine 2.38%, tyrosine 1.36%, phenylalanine 1.50%, histidine 0.45%, arginine 2.66%, proline 2.49%. (2) pepsin digestibility is 71.4%, and accordingly, according to the Peruvian fishmeal standard, the pepsin digestibility of high-quality fishmeal should be 94.0%-95.0%; the digestibility of single-cell protein is 75%, and pigs are omnivorous animals. The digestibility of organic matter in feed is generally about 70%, mainly in the small intestine. The digestibility of grass and high-quality hay were 64.6% and 51.2% respectively. As can be seen from the above, as a source of feed protein, the quality of insect feed is medium. However, one of the recent research hotspots, antimicrobial peptides and chitin are extracted from insects, both of which play a significant role in improving the disease resistance and immunity of livestock and poultry. According to the breeding practice, the fertilization rate and hatching rate of breeder chickens fed with live insects were higher than those fed with common corn-soybean meal feed. The appearance, color and taste of eggs produced by commercial laying hens fed with fly maggot powder are also better than those of ordinary eggs. Therefore, insect feed should also be a functional feed source.