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First, do a good job in preventing heatstroke to cool down The most important thing in raising broilers in the summer is to do a good job of preventing heatstroke and cooling. First of all, it is better to ventilate the interior of the house. The doors and windows that can be opened can be fully opened, but barbed wire must be added to the doors and windows to prevent the damage of animals. Secondly, the provision of shading equipment along the walls of doors and windows is conducive to heat dissipation and direct sunlight, as well as the prevention of thunderstorms. If conditions permit, use wind power at noon, and it is best to keep the room temperature below 28°C in the summer to facilitate chicken growth.
Second, choose the appropriate density General suitable density: 1 to 2 weeks old 30 to 25/m2; 3 to 4 weeks old 25 to 15/m2; 5 weeks old to slaughter l5 to l0/m2. It is advisable to use 300 animals per group. Groups and groups are separated by fences to facilitate the circulation of air in the houses.
Third, the fine adjustment of diet structure test proved that at 25 °C above, the chicken house temperature increased by 1 °C, chicken feed intake decreased by 1.6%, feed utilization decreased. Therefore, proper adjustment should be made to the dietary nutrition and composition so that the diet can maintain appropriate nutrient levels to compensate for the lack of nutrient intake caused by high temperature stress. In order to meet the needs of broiler growth and development, in order to achieve the desired weight, the protein level can be increased by 10% to l5% in the diet, and vegetable protein is used instead of animal protein to reduce the chicken's eating sensation and increase the multi-dimensionality of the diet. content. At the same time, use granular feeds to increase palatability and increase feed intake, thereby increasing the total nutrient intake of chickens. In summer, the appetite of the chicken is weakened. When it is hot in the middle of the day, it is fed with green and juicy feed such as watermelon rind, roots and vegetables. It is both thirst-quenching and cooling, which is beneficial to the rest of the chicken. In order to increase the feed intake of chickens, low-calcium feeds can be fed, and bone pellets and shell pellets can be added separately to allow chickens to eat freely; in addition, safe and effective flavoring agents can also be used.
Fourth, change the feeding method When the summer weather is hot, you can use night feeding, every night from 10 o'clock to 6 o'clock the next morning is the coolest time, is conducive to chicken feeding, and during the day let the chicken rest. The method is: appropriate lighting light, increase excitability, feeding 4 to 5 times at night, and through the vibration barrel, drive the flock to keep the chicken's strong appetite.
Fifth, add stress drugs In order to avoid or reduce high temperature and other factors caused by broiler stress response, in the feed or drinking water can add some preventive drugs. If chlorpromazine is added with 0.1% sedative in feed, basal metabolism and heat production of broilers can be reduced, which is conducive to maintaining heat balance and improving feed conversion rate and weight gain rate; adding 0.25% citric acid to feed can buffer The risk of alkaline blood in broilers can increase the daily weight gain of broilers under heat stress. Adding 0.05% aspirin to feed can significantly reduce heat stress and improve production performance; Adding yeast chromium or chromium pyroate to the feed also has the effect of improving the performance and immunity of the broiler under high temperature conditions. In addition, some Chinese herbal medicines such as honeysuckle, chrysanthemum, dandelion, etc. can also be used that have heat-clearing, detoxifying, anti-bacterial, anti-inflammatory, or immune-enhancing functions.
Six, provide adequate drinking water hot days drinking water for a long time, will affect the growth of broilers. Therefore, to set up enough water tanks, the water temperature should be kept at about 10°C. In the day, from 10 a.m. to 5 p.m. every day, change the water every 2 hours. Wash and sterilize drinking water appliances once a day to ensure adequate supply of clean drinking water. To keep the water inside and outside the house open, the house is clean and dry.
Summer heat how to raise broilers
Due to the fact that chickens have a strong heat stress during the summer, resulting in decreased appetite, reduced feed intake, poor disease resistance, and increased mortality. Therefore, some farms and specialized households that produce broiler chickens have been afraid to feed in the summer. , afraid of more harm than good. In fact, as long as we take it seriously, feeding and management can keep up, not only can raise, but the cost is not high. In order to maintain good broilers and eliminate the adverse effects of heat stress, the author interviewed Zhushan Dong, an outstanding graduate from the Agricultural School of Shanting District, Zaozhuang City, Shandong Province, and Zhu Shaodong, a large broiler raising chicken from Aihu Village, Sang Village. The eight technical measures he has summarized from practice are described below for reference by breeders.
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