Summer and Autumn Breeding Chicken "Four Qiao Method"
In summer and autumn, the temperature is still relatively high, and the temperature in broiler houses often exceeds 24°C, which is not conducive to the normal growth of broilers. How do you manage well to ensure that broilers grow at higher temperatures? Wang Jingyin, an associate professor at the College of Animal Science and Technology at the Northwest A&F University, suggested that we should seize the “four kinds of skill†to provide science and technology for the summer and autumn. Diet adjustment Once the temperature is too high, the feed intake of broilers will be reduced. If feeds are also fed according to a standard, the utilization rate of feeds will be greatly reduced. Wang Jingxi said that the dietary nutrition of the chickens can only be properly adjusted to ensure feed utilization. "You can add additives such as sodium bicarbonate and ammonium chloride in the diet or drinking water, and supplement vitamin C in an appropriate amount, which can significantly reduce the impact of higher temperature on broilers, thereby improving production performance." Wang Jingyao said that the chicken's loss of appetite, feeding Feeding time can be changed in the morning and evening when cool, at noon can be fed watermelon rind, roots and other types of green juicy feed. Stress response High temperature can easily cause stress response in broilers, often manifested as panic, screaming, rapid breathing, increased body temperature, etc. At the same time, there is mental depression, reduced feed intake, increased drinking water, reduced egg production rate, and severe death. In order to avoid this phenomenon, Wang Jingwei suggested that some drugs with preventive and therapeutic effects can be added to feed or drinking water. If chlorpromazine is added with 0.1% of sedative in the feed, the basal metabolism and heat production of broilers can be reduced, which is conducive to maintaining thermal balance. Improve feed conversion and weight gain. At the same time, 0.25% citric acid can be added to the feed, which can buffer the damage caused by blood alkalinity in broilers, thereby increasing the daily gain of broilers under heat stress. Chicken farm environment improved The shed environment plays a crucial role in the control of flock diseases, which can significantly reduce the death of flock and reduce the incidence of environmental diseases. How to create a good henhouse environment? Wang Jingrong believes that radiant heat and reflected heat should be reduced, ventilation volume should be increased, and temperature and harmful gas concentrations should be reduced. It is appropriate to build a chicken house at a height of about 5 meters. The house should have windows or ventilation holes, and the roof should be insulated. "To install cooling equipment such as high-speed fans or ceiling fans, the ground around the house is best planted with turf, vegetables or vines." Wang Jingxi said that when the temperature is high, a curtain of water or a low-volume rotating nozzle sprayer can be installed at the air inlet. Cold water is sprayed on the roof, ground and chicken body. Daily care management Summer and autumn broiler chickens should be properly reduced breeding density, reduce heat production gas. Wang Jingyu suggested that enough material and water levels should be set to ensure that each chicken can eat and drink water. The sink should be brushed and disinfected once a day to keep the inside and outside of the chicken house free from water drainage and clean and dry. At the same time, Wang Jingyao also stated that it is necessary to strictly implement the hygiene and epidemic prevention system, inoculate vaccines according to the immunization procedure, maintain the sanitation of chicken coops, and disinfect at least once a week; pay attention to the elimination of mosquitoes and flies and other pests, strengthen the observation of chickens, and find that abnormal conditions are taken in time. Corresponding measures.
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