High-yield layer chicken “two adjustments four applicationsâ€
With the gradual arrival of the cold winter season, the laying hens showed different degrees of egg production decline. In the peak season of the chicken production, feces and feed intake were all good, but the egg production rate would still fall by 5%-10%. Therefore, according to the environmental conditions and the specific conditions of the flock, it is very important to timely adjust the feed formulation. One can reduce the cost of raising and increase the economic efficiency. Second, it can ensure that the laying hens safely pass winter and prepare for high quality and high yields next year. Two adjustments Adjustment of the nutritional composition of laying hens When the temperature of the environment is adjusted to be too low, the maintenance needs, feed intake, and nutrient conversion efficiency of the layer will change, and the formula should be adjusted accordingly. The suitable temperature of adult laying hens is about 18°C-25°C. For every 1°C lowering of the ambient temperature, the average free feed intake of chickens will increase by 1.5%, and the maintenance requirement will also increase by 1.5%. Adjustment of protein and other nutrients During the cold season, the intake of laying hens increased, and the intake of protein, calcium, phosphorus, and vitamins increased accordingly. Therefore, from the cost point of view, the protein content can be adjusted from 15.8%-16.3% to 15.4%-15.7%, and other substances such as calcium, phosphorus, vitamins, etc. can be maintained or slightly increased. Note re-nutrition adjustment Controlling New Egg Production Rate The method of controlling the egg production rate of new chickens is mainly to adjust the ratio of protein and carbohydrate in the diet. When the rate of egg production for new winters reaches more than 50%, the protein content of the feed should be reduced to 15% to 15.5%. In the middle and late January of the following year, the protein content in the feed was increased to 15.5%-16.5%. The effective feeding method is cold in winter, and the chicken should be given hot water to drink warm water. Adding the appropriate amount of salt to the chicken drinking water can increase appetite and drinking water, and increase the egg production rate. It is also possible to add ore to the feed to increase the digestion of the chicken. It is also possible to feed pellets once in the evening to prevent hunger and cold at night and maintain a high egg production level. Four applications Vitamin C hens are tepid and cold. Vitamin C has the functions of anti-infection, detoxification and anti-stress, etc. It can increase chicken resistance to cold and diseases, prevent infectious diseases and increase egg production rate. Adding 5 grams of vitamin C per 100 kilograms of chicken feed can reduce feed consumption and increase egg production. The low temperature of vitamin E in winter can cause the ovary performance of laying hens to decrease and the egg production decrease. Adding vitamin E to layer chicken feed can increase ovarian metabolic function and increase egg production rate. Vitamin D Vitamin D promotes the absorption and utilization of calcium and phosphorus and promotes the formation of bones and eggshells. With less light in winter, and caged chickens unable to receive outdoor light, timely supplementation of vitamin D is crucial. Calcium has low sunshine duration in winter, and the demand for calcium in chickens increases accordingly. It is extremely important to supplement calcium in chickens. The daily calcium requirement of laying hens is 2.7-3.4 grams. Calcium source feed should be selected: stone powder, ie limestone powder, generally containing 38% pure calcium, which is the cheapest mineral feed for calcium supplementation. Shell powder, containing 96% calcium carbonate, equivalent to 38% calcium, calcium fast effect is better.
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