Chicken animal protein feed: meat meal

Chicken animal protein feed: meat meal

(1) Nutritional characteristics of meat: The high-quality meat meal contains about 70% of protein, fat of 7%-12%, and metabolizable energy of 11.13 MJ/kg. However, meat powder produced from waste pork contained 55.4% of protein, 30.4% of crude fat, and 14.52 MJ/kg of metabolizable energy. According to the analysis, the disease-dead and heavy pox pork powder that can be used for detoxification treatment contains 60.6% of protein, and the amino acid content in its meat powder is (%): threonine 2.38, glycine 3.10, cystine 0.19, hydrazine Acid 3.35, methionine 1.51, isoleucine 2.91, leucine 6.05, phenylalanine 4.69, lysine 4.43, histidine 1.52, arginine 3.46, tryptophan 1.83. It can be seen that the important limiting amino acid in meat powder is high in lysine. The average value of 3 samples of pox pork meat tested in Jilin Province was 0.65 (0.53-0.75)% for methionine, 0.26 (0.19-0.33)% for cystine, and 0.5 (0.18-0.96)% for tryptophan. The content is very low and care should be taken when using it. In addition, meat meal also contains vitamin B12, but the content is lower than fish meal.

(2) Feeding: Meat meal is a good animal feed. High quality meat meal is equivalent to or slightly inferior to fish meal. Xiang Shiliu et al. added 4% and 6% meat powder to the broiler and layer chicken diets respectively, and the control group had 4% Peruvian fish meal. The results showed that in the diets of broiler chickens and layer chickens, it was feasible to use 4% of meat instead of equal imports of fish meal, and there was no significant difference in growth performance. According to BlaivR et al., the inclusion of meat meal in broiler diets can reduce the incidence of sudden death syndrome.

(3) Precautions:

1 meat powder containing high fat, should not be stored too long to prevent lipoxygen acid rancidity, resulting in the loss of performance of chickens and poultry losses.

2 High-quality meat powder contains ash content of 4% - 7%, mixed with leather powder or other substances, often making ash content more than 21%, and high 40%. According to Zhang Ruohan, the digestibility of the three amino acids of lysine, threonine, and isoleucine is only 52%-53% in the internal powder containing 44% ash. Therefore, it is not possible to use meat powders with high ash content.

3 The amount of meat powder should not be too high. Meat meal contains less tryptophan and sulfur-containing amino acids, the amount of which is preferably not more than 4%, and pay attention to the balance of these two amino acids.

4 pay attention to the quality of meat powder. According to the specifications of the United States AAFCO (American Feed Management Personnel Association), in addition to essential trace inclusions, mixed hairs, horns, skins, feces, etc., must not be mixed with blood powder, and pepsin insolubles should not be present. Less than 14%.

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