First, the principle of "two openings": two openings refer to the work of boiling water and boiling food when the chickens are transported to the brood house. The principle of boiling water and boiling food should be adopted first, then boiling food. After the chickens are out of shell, some yolks have not been absorbed. Drinking water can accelerate the metabolism of this nutrient. To feed chickens, it is necessary to start feeding chicken feed with nutritious, digestible and palatable full-price chicken feed. The feed tank should be sufficient, and the feeding times gradually decrease with the increase of age. Because chickens have poor digestive function, they can not overeat. If they overeat, they will cause indigestion, cause digestive tract diseases and feed 80% of them full.
Second, the principle of "three controls": to control the environment of chicken house is the key to ensure the health of chickens. Three controls refer to the control of ventilation, illumination and disease in chicken house.
(1) Controlled ventilation: Reasonable ventilation can discharge harmful gases from the chicken house and let fresh air into the chicken house, so that the chicken house can achieve a fresh and comfortable environment, so that the chicken can grow healthily.
(2) Controlling illumination: Reasonable illumination can promote growth and bone development, prevent diseases and improve production performance. At the age of 3 weeks, the chickens can be put out of the house at noon on sunny days (warmer climate), sunshine and exercise for 1-2 hours, which can not only promote the growth and development of the chickens, but also promote the chickens to gradually adapt to the natural environment.
(3) Control the occurrence of disease: young chicks are small and have poor disease resistance. Once an epidemic occurs, they will spread quickly, have a high mortality rate and suffer a great loss. Therefore, it is necessary for farmers to do a good job in disinfection of chicken houses and immunization of chickens. Only with the idea of prevention over treatment can chickens be healthier.
3. "Three degrees" principle: three degrees means that the farmers should control the temperature, humidity and density in the henhouse; the appropriate temperature is the key to raising chickens well: the general requirements of temperature for chickens are: 1-3 days of age is 34-35 degrees, 4-7 days of age is 32-33 degrees, after 7 days of age, 2-3 degrees per week, until 20 degrees of temperature, after about 6 weeks of time, the chickens can adapt to the natural environment; The suitable humidity should be maintained in the chicken house: too high or too low humidity in the chicken house is not suitable for the growth and development of chickens. The ideal humidity is 70%-75% at the first week of age and 65% at the second week of age. From the third week of age, the density of chickens should be maintained at 55%-60% as far as possible. Attention should also be paid to the density of chickens: Reasonable feeding density is important to ensure the health and good growth and development of chickens. Under normal conditions, 30 rats/m2 in the first week, 25 rats/m2 in the second week, 20 rats/m2 in the third week, 15 rats/m2 in the fourth week and 10 rats/m2 in the fifth week. In addition, the feeding density of chickens must be flexibly controlled according to breed, season, sex, structure of chicken house, ventilation conditions and feeding methods.
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