Corn Gluten Meal

Today I will introduce corn protein powder to you, so you can understand the reason:

Composition of corn gluten meal

Corn gluten meal, also known as corn gluten meal, is mainly composed of corn protein and contains a small amount of starch and fiber. Protein exists in the pig's gastrointestinal tract in two states: soluble protein and insoluble protein. Insoluble protein is easily combined with other macromolecular organic matter or trace elements, and is not easily absorbed and utilized by animals. Almost all of it is excreted by animals and is a component of dry matter in feces. Starch includes resistant starch and chronic starch. Resistant starch is not easily hydrolyzed by amylase in the digestive tract. After absorbing water, its viscosity increases, affecting the peristalsis of chyme and the digestion and absorption of nutrients. The fiber component in corn gluten meal is composed of NSP and lignin. The content, type, and structure of NSP affect the digestion and absorption of the diet to a certain extent, and also affect the utilization and excretion of nitrogen.

Corn gluten meal nutritional facts

The different nutritional components of corn gluten meal produced for different purposes and by different production processes directly affect its effective utilization rate and the economic benefits of feed formulas. Corn gluten meal produced by the pharmaceutical industry contains more than 60% protein. Its protein content is 21% and 3.7% higher than that of soybean cake and fish meal, respectively, and it is a high-protein feed raw material. At the same time, its crude fiber content is 3.9% lower than that of soybean cake. The fat content in medical corn gluten meal is higher than that of soybean cake and corn seeds. After being formulated into feed, the fat content of the feed is high, which is beneficial to reduce the oxidation of amino acids and generate more body protein. It can also inhibit the conversion of glucose and other precursors into fat. Under high temperature conditions, it is also beneficial to energy intake.

Reduce the body heat consumption of livestock and poultry and alleviate heat stress.

Corn gluten meal is a by-product of the brewing industry. It has a low protein content and a high crude fiber content. Its nutritional value is not as high as that of medical corn gluten meal. However, because it contains unknown growth factors, it can significantly improve the production performance of animals after being added to the diet.

Application of corn gluten meal in livestock and poultry feed

Corn gluten meal as a feed protein source

Corn gluten meal has high protein content and rich amino acids. It can be used to replace soybean cake, fish meal and other protein feeds in the feed market where soybean cake and fish meal are in short supply. The laying hen compound feed mainly based on corn gluten meal can increase the egg production rate by about 15%. It can prevent and treat osteomalacia and other diseases of chickens, play a role in health care and growth promotion, and is beneficial to improve the quality of egg protein.

The protein content of corn gluten meal is directly related to the apparent digestible energy value of pigs. Raw materials with a suitable energy-protein ratio or a relatively balanced essential and non-essential amino acids have a higher energy digestibility. Corn gluten meal with different protein contents (CP: 52% produced in Northeast China, 47.4%, 32% produced in Beijing) was added to the basic feed of pigs, with the added weights of 20%, 25%, and 30% respectively. The digestible energy of pigs was measured. The test results showed that corn gluten meal containing 32% crude protein had a higher apparent digestible energy, which may be due to its suitable energy-protein ratio.

In the cattle industry, using corn gluten meal as concentrated feed can make part of the protein that cannot be digested by the rumen better digested and absorbed in the small intestine. Corn gluten meal contains linoleic acid, which can promote the fat metabolism of chickens and promote the polymerization of essential amino acids.

Corn gluten meal improves broiler chicken pigmentation

Although the coloration of broiler skin has nothing to do with its nutritional value, influenced by traditional culture, consumers and breeders still use the coloration of broiler products as one of the main indicators to measure the quality of broiler products, which directly affects the price and demand of the broiler market.

Broilers cannot synthesize lutein by themselves and can only obtain it from feed. At present, in order to obtain ideal skin color, chemical synthetic colorants such as calomel red and calomel yellow are generally added to broiler feed. These colorants are expensive, increase feed costs after addition, and remain in the bodies of livestock and poultry. The lutein content of corn protein powder is as high as 90-180mg/kg, which is more than 5 times that of yellow corn. It can be effectively absorbed, making eggs golden yellow and chicken skin yellow. The price of corn protein powder is close to that of soybean cake. In view of this, corn protein powder plus arsanilic acid can be used to replace chemical synthetic colorants to improve the color of broilers.

2.5% corn gluten meal and 90 mg/kg arsanilic acid were added to the diet of the experimental group, 100 mg/kg arsanilic acid was added to the diet of the colorant control group, and no colorant was added to the diet of the blank control group. The results showed that the color grade of the experimental group and the colorant control group was significantly higher than that of the blank control group, and there was no significant difference in the increase of the color grade of the gelatin between the experimental group and the colorant control group. The shank color of the broiler in the experimental group was dark yellow, and the appearance was in line with people's consumption habits. From the effect of the color of the slaughtered broiler, the effect of adding corn gluten meal was very close to that of adding arsanilic acid, and was significantly higher than that of the control group; the coloring effect of natural lutein in the feed was slightly worse than that of chemical synthetic colorants, but by adding arsanilic acid, the body metabolism was promoted and the utilization and deposition rate of lutein in the feed was increased, thereby changing the coloring degree of the broiler skin, and the effect was obvious.