How to save the fine feed for livestock and poultry breeding

Adhere to scientifically matched feeds based on the nutritional needs of livestock and poultry This is an important method for saving food. At present, some farmers in rural areas tend to feed livestock and poultry with high consumption and high cost. One of the important reasons is that the feed is monotonous and nutrient-poor, which leads to a long feeding period. In order to raise livestock and poultry well and save material, first of all, we must use compound feed to raise livestock and poultry. Only diversification of feed ingredients in the diet can increase the number of amino acids contained in the diet to complement each other and increase the biological potency of the protein. Compared with feeds fed to livestock and poultry, the feed conversion rate can generally be increased by more than 20%. A fattening pig at the slaughterhouse can save 30 to 50 kilograms of grain, shorten the slaughter time by 2 to 3 months, and reduce the cost of feeding by about 20%. Especially in recent years, with the continuous progress in the research of feed additives, by adding certain new feed additives, the disease has been reduced, the growth and development of livestock and poultry has been promoted, the product rate of products and feed utilization rate have been improved, and livestock breeding has been effectively improved. The economic efficiency of poultry.

Effectively improve feed processing and animal husbandry management methods If the feed is improperly stored and processed, it will often cause a certain amount of nutrient losses, thereby reducing the utilization of feed for livestock and poultry. Therefore, it is an important measure to increase the effective utilization rate of feed for feeds by improving the storage of feeds and improving the processing methods of feeds. Beans diet generally contains anti-trypsin and other substances, this material will affect the digestion and absorption of the protein, but after wet heat treatment, can make anti-trypsin failure, thereby increasing protein utilization. The finer the grinding of cereal feed, the higher the digestibility, but the fineness will reduce the palatability. According to the research data, the digestibility of starch was 70.8% for cattle fed comminuted corn, but the digestibility of starch was 99.9% and the digestibility was 29.1%. Feeding broiler chickens with granular pellets increased the utilization rate by about 23% compared with the feed powder.

Feeding methods also have a great influence on feed utilization. Tests have confirmed that feeding pigs with thinner materials consumes 27.1% more calories than feeding heavy materials. If the habit of feeding thinner materials is changed to feeding thick materials, the utilization rate of feed can be greatly improved.

The quality of management not only affects the health of livestock and poultry, but also affects the utilization of feed for livestock and poultry. Experiments have shown that when the temperature of animals is -10°C, the loss of heat energy is 28% higher than that at 10°C, and the heat absorption capacity of wet air is almost 10 times that of dry air. Especially in winter, livestock must be kept dry. In a warm home, you can reduce the loss of body temperature and reduce the consumption of nutrients in the body. According to experiments, pigs raised the most weight at 16°C~21°C. If the temperature is below 4°C, the weight gain will be reduced by about 50%, and the feed consumption per kilogram of weight gain will be increased by 1 time compared with the optimum temperature. When the temperature of the poultry is lower than 7°C, low temperature stress appears, which increases the feed consumption. For this reason, only in accordance with the physiological requirements of livestock and poultry, to create suitable environmental conditions for them, it is easy to maintain the balance of body temperature, reduce the loss of heat energy, thereby giving play to the production performance, save feed and reduce production costs.

Ensuring protein supply is an indispensable nutrient for growth and development of livestock and poultry. According to statistics, there is a shortage of 20% to 25% of digestible protein in livestock diets, 30% to 40% of livestock products, and 30% to 50% of feed consumption and animal product costs. For monogastric animals, the balance of amino acids in the diet after the protein content in the diet reaches a certain level is of great significance, especially methionine and lysine, which are necessary for balancing various amino acids, improving nutritional value, and producing compound feed. raw material. After testing, broiler chickens were fed diets containing 18% crude protein. Adding 0.5% lysine increased the weight by 24% over non-added diets.

Feeding good breeds of livestock and poultry, making full use of heterosis The higher the productivity of livestock and poultry, the lower the consumption of materials and the lower the cost. The number of pigs in China is more than 300 million heads, while the amount of pigs in the United States is only 1/4 of that in China, but the amount of meat produced is comparable to that in China. If we increase the quality of pig breeds and appropriately reduce the number of breeders, we can produce more than 50% of the meat even without increasing the amount of feed. The use of hybrid superiority is also an effective measure to save feed. Generally, hybrid pigs increase their weight gain by 10% to 30% compared with purebred pigs, and save 10% to 15% of feedstuffs.

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