To prevent heat stress in ducks, it is important to strengthen daily feeding and management. In hot weather, ducks tend to reduce their activities in order to reduce the increase in body heat. Therefore, during hot periods, they must avoid disturbing the duck population in order to minimize duck activity. Maintain the water quality of the water sports stadium clean, and extend the water discharge time if necessary. Strengthen the daily disinfection work to prevent flies and mosquitoes from breeding and prevent the ducks from being disturbed by insect pests. Do a good job of disinfection, at the same time prevent the invasion of harmful microorganisms, to prevent the decline of duck resistance, enhance the duck's ability to resist heat stress. Strengthen the observation of ducks and find that abnormalities take timely measures to protect the health of ducks. Take the following measures: Choose a duck breed that has strong heat-resistance, or breed a duck group that resists heat stress. Degao duck has strong heat-resistance. Cherry valley ducks, maple ducks, and Hager ducks have strong adaptability and can choose to breed. In addition, the selection of breeding ducks under environmental climate stress conditions will increase the adaptability of offspring to heat stress. The Xianhu No. 3 duck, which was bred and matched with cherry grain commercial ducks, has a strong ability to resist heat stress. Reduce the heat of solar radiation. Building a tall and spacious duck house is a relatively long-term solution to reduce the effects of solar radiation. The shady pergola should be set up on the open-air amphitheater in the open type duck house. The roof should be thickened and the roof can be sprayed with water or water atomized on the top of the house during high temperature, or white paint can be applied on the inner roof. The work in the surroundings of the duck house. Conditions can also be installed in the duck wall on both sides of the wet curtain wall, the general summer can be used to keep the duck house temperature below 30 °C, cooling effect is good. Provide plenty of water. Adequate clean cold water is the key to prevent summer heat stress in ducks. Drink clean tap or cold water (well water or ice cubes) to your ducks. When the ducks drink plenty of deep well cold water, the cold water in the crop can cool the arterial blood supplying the brain and the blood vessels in the neck and chest, reducing the death caused by heat stress. Therefore, during the hot summer, you should drink 1 to 2 times at night. Reduce the rearing density and reduce the biological heat in the ducks. Excessive density not only means that there are too many ducks per square meter, but also that each duck has less food troughs and sinks. Reducing the number of ducks in the duck house or increasing the number of water and troughs in the duck house can reduce the total heat output due to the decrease in the number of ducks, and avoid the shortage of food troughs or sinks that can cause food shortages and grab drinks. The rise in individual heat production can both reduce the biological heat in the ducks. Reduce the humidity in the house and keep the house dry. Ducks typically require 60% to 70% relative humidity. Relative humidity and temperature act together on the duck population. If the temperature is appropriate, the relative humidity has little effect on the ducks. During the hot season, ducks drink more water than in other seasons. Therefore, more moisture is lost through exhalation evaporation than in other seasons. In particular, the evaporation of water from excrement and the fermentation of excrement at high temperatures are high and harmful humidity in duck houses. The main reason for the increase in gas content is to keep duck dung dry and increase the number of sweeps per day in the duck house. The sink should be placed around the duck house to prevent ducks from splashing in the water. Strengthen nutrition regulation. Due to the high temperature in summer, the feed intake of ducks decreased, affecting duck production and laying performance. Therefore, it is necessary to make necessary adjustments to the feed formulation to ensure daily nutritional intake of the duck. Consider using fat to replace some of the carbohydrates when modifying the formula, because heat is less when digesting fat, and the heat dissipation of digested protein is more than when digesting carbohydrates and fats. Therefore, as long as all essential amino acids are satisfied, protein levels are kept to a minimum. In addition, adding some anti-stress additives to the feed can relieve heat stress. Chinese herbal medicine feed additives were used for conditioning. From the point of view of the Chinese and Veterinarians, heat stress is due to Shushi attack, hot and humid intrinsic, kidney deficiency, liver and spleen discord, due to heat and heat, heat and detoxification, nourishing kidney, spleen and liver protection The principle is to combine Chinese herbal formulas for conditioning. Commonly used medicines include gypsum, Houttuynia cordata, Radix isatidis, Astragalus membranaceus, talc, herb, musk, tangerine peel, white peony root, astragalus, codonopsis, licorice, etc., which are prepared by a certain proportion and mixed by grinding or decoction as drinking water. The dosage of each duck usually reaches 4 grams to 6 grams per day for a duck, and the course of treatment is more than 3 days. Dried Squids,Dried Cuttlefish,Dehydrated Squid,Dry Calamari Zhoushan Fudan Tourism CO., LTD , https://www.fudanfood.com