Corn and corn is a kind of grain feed containing high starch, high heat energy and low protein content. The dry matter content is about 88% and the crude protein content is about 9%. It is not only the high-quality feed for beef cattle production but also the first choice energy feed for beef cattle. Yellow corn contains many carotenoids and lutein, which tends to yellow the fat and affect carcass quality. Therefore, when high-grade beef cattle are produced, especially in the late fattening period and older cattle, the yellow corn should be reduced as much as possible. Dosage, switch to white corn. Corn grits provide the best results, especially wet milling. Barley barley has a high content of saturated fatty acids and a low fat content of only 2%. It uses barley to fatten beef cattle and has good body fat and quality. Therefore, barley is the best energy feed for the production of high-grade beef. Feeding barley at the early stage of slaughter has the function that other feeds cannot replace to improve the quality of beef. The best way to use it is fine grinding. The main disadvantage of sorghum sorghum is that it contains tannins, but after proper processing, such as crushing, cracking, steam compression, pulverization, extrusion, etc., the nutritional value can be increased by about 15%. The combination of sorghum and corn has a good effect. The main reason is to adapt beef cattle to high-energy rations, reduce the chance of acidosis, and effectively use the growth potential of beef cattle. Wheat bran as a feed for beef cattle can not be fed at the late stage of fattening. Because wheat bran contains too much phosphorus and magnesium, feeding too much can easily lead to urinary tract stones. The general dosage is controlled at 10% to 12%. Rice bran defatted rice bran feeding effect is good. Non-defatted rice bran has high fat content and is difficult to preserve. If it is fed too much, it will not only cause beef diarrhea, but also cause body fat to become soft and affect quality. Cottonseed cakes and cottonseed cakes are not limited in the formulation of fattening beef cattle rations. The accumulation of gossypol in beef is far below the hygiene standards and will not have a toxic effect on the human body. Cottonseed cake can be directly prepared with corn flour, silage, distiller's grains and other feed, without soaking, large pieces can be processed crushed, small mechanically pressed small flakes cotton seed cake can be used without crushing. Straw rice producing areas, straw is the main source of cattle for cattle, but also cattle fillers. Alkaline treatment can improve the utilization of rice straw. Mechanical treatment is suitable for immersing 1 cm to 1.5 cm. Corn stalk is an ideal roughage for beef cattle. It should be crushed after being dried. In wheat-wheat wheat producing areas, wheat straw is the main source of roughage for cattle. Alkalization treatment can improve the utilization of wheat straw. Mechanical treatment is suitable for comminution into 0.2 cm to 0.7 cm long, which can be directly mixed with silage, mixed concentrates, etc. Hay hay has good palatability, and is a good raw feed for cattle. However, when high-grade beef is produced, the amount of hay fed should be limited at the late stage of fattening. Generally, it only accounts for 5% to 10% of the diet, otherwise it will affect cattle. Body quality. The utilization of hay is best when it is made into pelleted feed.
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