Livestock and poultry feeding effective saving method
(1) Scientific matching of feeds In order to raise livestock and poultry well, and save materials, first of all must use compound feed to raise livestock and poultry. Feeding livestock and poultry fed compound feed can generally increase feed remuneration by more than 20% compared with feeding single feed. A finishing pig can save 30 to 50 kilograms of food, shorten the slaughter time by 2 to 3 months, and reduce the cost of feed production by approximately 20%. . Simultaneously add some new feed additives to reduce the occurrence of diseases, promote the growth and development of livestock and poultry, and increase product product rate and feed utilization rate.
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(B) Effectively improving feed processing and livestock husbandry management methods
1, in the beans feed contains anti-trypsin and other substances, this material will affect the digestion and absorption of protein. However, after the material is wet-heat treated, the antitrypsin can be invalidated, thereby increasing the utilization of the protein. The finer the grinding of cereal feed, the higher the digestibility, but too fine will reduce the palatability. Studies have shown that the use of comminuted corn to feed cattle, the digestibility of starch is 70.8%, while the use of flattened corn to feed cattle, the digestibility of starch reached 99.9%, increased digestibility 29.1%. Feeding broiler chickens with pellets improves the utilization rate by about 23% compared with the powder.
2. In terms of feeding methods, agricultural products are still accustomed to feeding dilute food to pigs. Due to excessive water intake, the feed intake of pigs is limited, and the digestibility of dry matter is reduced. According to experiments, pigs fed with thinner materials consume 27.1% more calories than those fed with thick materials. If the habit of feeding thinner materials is changed to feeding thick materials, the utilization of feed can be greatly improved.
3. It has been proved by experiments that when the livestock is at -10°C, it is 28% higher than the heat energy lost at 10°C. Therefore, the livestock must be allowed to live in a relatively dry and warm housing in order to reduce the loss of body temperature and reduce the body's nutrition. The consumption. According to experiments, pigs raised their maximum weight at 16 to 21°C. When the temperature deviates from the optimum temperature (for example, if the temperature is below 4°C and the weight gain is reduced by approximately 50%), the consumption of feed per kilogram of weight gain will be doubled at the optimum temperature. When the temperature of the poultry is lower than 7°C, low temperature stress appears, which increases the feed consumption.
(3) To ensure the supply of protein According to tests, 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. . After testing, broiler chickens were fed diets containing 18% crude protein. Adding 0.5% lysine increased the weight by 24% over non-added diets.
(4) The choice of breeding good breed livestock and poultry and making full use of the heterosis has proven that the higher the herd productivity, the lower the consumption of material and the lower the cost. If we improve the quality of pigs and appropriately reduce the number of breeding heads, 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 gain 10% to 30% more than purebred pigs and 10% to 15% of feed is saved.
Author: Zhangqiu City Bureau of Animal Husbandry, Shandong Province
