The nutritional characteristics of fishmeal are:
High biological value
The protein content of high-quality imported fishmeal is more than 60%, and some are as high as 70%; domestic high-quality fishmeal protein is more than 55%. A variety of amino acids are high and balanced, so their biological value is also high, and they are high-quality animal feed for balancing poultry diets.
High energy
Sturgeon meal contains high fat, and imported fish meal contains about 10% fat; domestic fish meal standards are 10% -14%, but some are as high as 15% -20%. Therefore, the metabolic energy in fish meal is usually 11.7-12.55 MJ / kg for chickens. However, its fat is easy to oxidize, which often causes vitamin A and vitamin E to be deficient with the oxidation of fat. At the same time, the temperature of fat oxidation rises, which is one of the causes of spontaneous combustion of fish meal.
Anchovy meal contains calcium 3.8% -7%, phosphorus 2.76% -3.5%, and the calcium-phosphorus ratio is 1.4-2: 1. The better the quality of fishmeal, the higher the phosphorus content, and the phosphorus utilization rate is 100%. However, during storage, due to chemical decomposition, phosphorus is released and becomes elemental phosphorus. Elemental phosphorus has a low ignition point and can be opened naturally without the need for an open flame. This is the second reason why fish meal is liable to spontaneously ignite during storage.
Catfish meal contains six trace elements commonly used by chickens, especially zinc and selenium. According to analysis, per kilogram of marine fish meal contains 97.5-151 mg of zinc, tuna meal is as high as 213 mg, and freshwater fish meal is 60 mg; per kilogram of marine fish meal contains 1.5-2.2 mg of selenium, and tuna meal is as high as 4-6 mg.
Is especially rich in choline and vitamin B2. According to analysis, per kilogram of Peruvian fish meal contains 27.1 mg of vitamin B, 9.5 mg of pantothenic acid, 390 mg of vitamin H, 0.22 mg of folic acid, 3978 mg of choline, 68.8 mg of niacin, and 12110 μg of vitamin B12.
Pheasant digestibility of fish meal protein and fat is 91% -93% and 78% -91%, respectively.
Effective energy
Contains no difficult-to-digest substances such as cellulose, high crude fat content, and high effective energy value of fish meal. It is easy to formulate high energy and high nutrition feed with fish meal as raw material in production.
Vitamins
Is rich in B vitamins, especially high in vitamins B12 and B2, and also contains fat-soluble vitamins such as vitamins A, D and vitamin E. Good absorption!
Minerals
A good source of minerals. The content of natural organic calcium and phosphorus is very high, and the proportion is appropriate. All phosphorus is available phosphorus. Fishmeal has a high selenium content, which can reach more than 2mg / kg. In addition, the content of iodine, zinc, iron, and selenium in fish meal is also very high, and it contains appropriate amount of arsenic.
Amino acid
Is rich in a variety of amino acids, especially the ratio of major amino acids to the amino acids required by animals is the most parallel and the closest.
未知 contains unknown growth-promoting factors
The exact composition has not been purified, so it has not been named, but its growth promoting effect is recognized and affirmed.