The role of corn gluten meal in feed
1.Corn gluten meal is used as a feed protein source
Corn protein powder has high protein content, rich amino acids, but unbalanced amino acid composition, rich in branched chain amino acids (leucine, isoleucine, valine), sulfur-containing amino acids, proline and phenylalanine. Etc., especially rich in glutamic acid, but lacks basic and acidic amino acids, such as very low levels of tryptophan and lysine.
Corn gluten meal is mainly composed of prolamin. It has a special structure and strong hydrophobicity, which limits the digestion and utilization of animals. Although the microbes in the digestive tract of the animal and the digestive enzymes in the intestine can digest and degrade to some extent. Corn gluten meal, but the digestion is very limited. The addition of exogenous proteases can promote the digestion and absorption of corn gluten meal by animal organisms. Corn gluten meal is a high-value F-value oligopeptide molecule with significant biologically active peptides produced by digestive enzymes or biodegradation. In addition to being easily digested and absorbed by animal organisms, corn active peptides also have physiological activities such as anti-oxidation, fatigue elimination and blood pressure lowering; high F-value oligopeptide molecules have functions of improving liver, kidney, intestine and stomach of animal organisms.
2.Corn gluten meal improves broiler coloration
Although the coloration of broiler epidermis has nothing to do with its nutritional value, due to the influence of traditional culture, consumers and breeders still use broiler coloration as one of the indicators to measure the quality of broilers, directly affecting the price and demand of the broiler market. Broilers cannot synthesize lutein by themselves and can only be obtained from feed. The degree of coloration of the epidermis depends on the effective supply of lutein in the feed and the total amount of lutein deposited in the chicken.
The corn gluten meal has a high content of lutein, which can be effectively absorbed, and can make the egg golden yellow, so that the chicken skin is yellow, increasing the nutritional value and the selling price.
3.Corn gluten meal can replace the role of antibiotics
Corn gluten meal made from corn starch extracted from corn syrup, containing 60%-80% protein and 7%-8% citric acid, has acidity, aroma, sweetness, good palatability and high digestibility. . The citric acid contained in the corn gluten meal has special significance. The acidifier such as citric acid is used instead of the drug type growth promoter. The harmful substances are not left in the livestock and poultry products, and the withdrawal period is not the same as many antibiotics. WHO requirements, while also increasing feed intake and digestibility of livestock.
4.Reduce nitrogen discharge rate and reduce environmental pollution of livestock and poultry excrement
Through the experiment of different types of corn protein powder diet fiber and energy on the nitrogen metabolism of growing pigs, the digestive absorption, utilization and excretion of nitrogen in growing pigs were further explored, so as to study the low-pollution diet technology more effectively. The results showed that the nitrogen deposition, nitrogen digestibility and total nitrogen utilization rate of corn protein powder diet were positively correlated with the digestibility of neutral detergent fiber, acid detergent fiber and crude fiber in diet; dietary nitrogen and dietary nitrogen The ratio was linearly negatively correlated with the digestibility of neutral detergent fiber, acid detergent fiber and crude fiber in the same diet, and linearly positively correlated with neutral detergent fiber or crude fiber content. The neutral detergent fiber or crude fiber content of the diet is increased, the ratio of fecal nitrogen to dietary nitrogen is increased, and the nitrogen excretion is increased, which reduces the total nitrogen utilization efficiency and is beneficial to the ring.
In short, the content of corn gluten meal powder protein is high, and its degradation product--bioactive peptide is not only easy to digest and absorb by animal body, but also has physiological functions such as anti-oxidation and immunity enhancement. In addition, corn gluten meal is rich in lutein and has high content. Feed value. However, the content of prolamin in corn gluten meal is high, and the digestive enzymes and microorganisms in the animal body are very limited in digestion and utilization, which does not achieve the desired effect. The digestion and utilization of corn gluten meal by the animal body can be improved by adding the exogenous protease preparation. The corn gluten meal has a wide source and will be widely used in the feed industry, especially its coloring effect. The application prospect of poultry feed will be very broad.