What are the types of feed materials?
2024-07-25
(1) Energy feed refers to the dry matter crude fiber content is less than 18%, while the crude protein content is less than 20% of grain, bran, grass seed and tree fruit, starch roots, tubers and melons and vegetables and other feeds. Common energy feeds are:
(1) Corn: crude protein content of 8%~9%, digestive energy 14.27 MJ/kg, the kernel contains very rich starch, crude fat content is also high, is an important high energy concentrate. But lack of lysine, methionine and tryptophan three essential amino acids. In the world feed cereals (corn, barley, oats, sorghum, rice) accounted for about 50% of the total feed cereals.
② Wheat: protein content and quality are higher than corn, energy is close to corn, palatability is better than corn, growth and fattening pig use, can reduce yellow fat, improve pork quality. General crude protein 13.9%, digestive energy 14.18 MJ/kg. Compared with corn, wheat protein and vitamin content is higher, but the content and utilization of biotin is low, as the main raw material to replace corn should pay attention to supplement biotin, wheat also lacks lysine, should be properly supplemented. Wheat contains anti-nutrition factors pentosan, phytic acid phosphorus and so on, pigs can not digest and absorb, excreted through feces, will pollute the environment. In addition, wheat is easily infected with gibberella, which can cause acute vomiting in pigs. For Suckling pigs, powder is generally good, and for large pigs, crushed grains are generally better, otherwise the palatability is poor.
Rice bran: The mixture of seed coat, aleux layer and embryo separated when brown rice is processed into white rice, and its nutritional value varies according to the degree of white rice processing. Its dry matter contains 11.9% crude ash and 13.7% crude fiber, which is a disadvantage. However, containing 13.8% crude protein and 14.4% crude fat is its advantage, but the unsaturated fatty acid content in these crude fats is high, so it is not easy to store, easy to rancidity due to oxidation. At the same time, the ratio of calcium and phosphorus is not suitable, which is 1:22; Because it contains more oil, feeding animals too much, easy to cause diarrhea. It is generally controlled below 15%, and it is safer to choose processed degreased rice bran or use fresh rice bran.
Wheat bran: is a by-product of wheat processing into flour, consisting of wheat seed coat, aleurone layer, a small amount of germ and endosperm. The quality and quantity of bran production depend on the processing process, and the crude fiber is as high as 8.5%~12.0%. The protein content is as high as 12.5%~17.0%, the quality is also higher than wheat, containing 0.67% lysine. However, the methionine content is very low, only 0.11%, the big drawback is the imbalance of calcium and phosphorus, which is 1:8, and special attention should be paid to calcium supplementation when matching the diet. The advantage of wheat bran is that the fluffiness can regulate the bulk weight of the feed, and the laxity can regulate the function of the digestive tract, but it should be noted that the wheat bran has strong water absorption and is easy to cause constipation.
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Guiyang Tainong Breeding Co., Ltd
Phone: 158-8503-3288
Email: 1600677280@qq.com
Address: Lianmaba Village Group, Liuyu Village, Shuangliu Town, Kaiyang County, Guiyang City, Guizhou Province
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