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Piglet protein requirement and raw material selection

According to the "ideal protein" theory, the protein requirement of piglets is essentially the amino acid requirement. Studies have shown that piglets are not sensitive to low-protein diets. The key is to ensure the balance of various essential amino acids in the diet. Therefore, by adding some amino acids that are lacking in the diet, when the dietary protein level is low (usually 18%), the amino acids can be balanced and still achieve a good feeding effect. The first, second, third, and fourth restrictive amino acids in piglet diets are lysine, threonine, methionine and tryptophan, respectively. Low-protein feed has the advantages of reducing the incidence of piglet diarrhea and diarrhea, reducing nitrogen emissions from pig farms, and reducing pig feed costs.

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There are many sources of protein feed for piglets, such as fish meal, plasma protein powder, soy protein, puffed soybean meal, etc. In addition, high-egg whey powder contains 11%-12% protein, which is also a good source of protein. Soybeans contain a variety of anti-nutritional factors and antigen components that cause immune pathological reactions, leading to indigestion and diarrhea in piglets. The amount of use in piglet diets should be limited.

Full fat puffed soybeans can be used, which is easy to match with high energy and high energy. In addition to the selection of high-quality raw materials in the first phase of the diet, it is suitable to add puffed soybean meal, so that the piglets can adapt to the soybean protein antigen very early before weaning. Skimmed milk powder is also an important protein material for early weaned piglets. It not only provides high-quality protein (more than 34%). It is also a source of lactose (above 50%) in early weaned piglets.

The active ingredient of plasma protein powder (SDPP) is immunoglobulin, crude protein 70%~78%, lysine 6%~7.6%. Immunoglobulin can increase the survival rate of weaned piglets, reduce the frequency of diarrhoea, and increase body weight. The content of methionine and isoleucine in porcine plasma protein powder is relatively low. Pay attention to the levels of these two amino acids.    

High-quality imported fish meal not only has high crude protein content, rich amino acid content and balanced composition, but also contains unknown growth factors. It is an extremely effective source of animal protein in piglet feed.

The intestinal membrane protein is extracted and concentrated from the intestinal mucosa. Because it contains the highest digestive enzymes, 65% crude protein and 12% crude fat, it can obviously promote the early maturity and perfection of the digestive system of young animals, and can improve it Digestion and absorption of feed, reducing stress, is a high-quality animal functional protein.

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