The key measures of raising Meat Duck in Summer

I. adjust feed nutrition and feeding methods

1. Adjust the feed formula. The feed intake of ducks decreases with the increase of ambient temperature, so the feed concentration should be properly increased to ensure the daily nutrient intake of ducks.

(1) replace some carbohydrates with fat. This can not only increase dietary energy and make up for the reduced energy intake due to the decrease of feed intake, but also effectively reduce heat stress. (2) protein level of lumen system. In order to reduce the heat burden and improve the utilization rate of protein in meat ducks, essential amino acids should be added according to the surplus and deficiency of amino acids in the diet to ensure the balanced supply of amino acids. (3) increase the content of minerals and vitamins. The addition of potassium and sodium to diet or drinking water and the addition of carbonate to drinking water are beneficial to maintain electrolyte balance. In addition, adding 0.1% 0.5% sodium bicarbonate to the feed can effectively reduce the heat stress reaction. High temperature reduces the ability of vitamin C synthesis in ducks, so vitamin C 50 ~ 200 mg should be added per kilogram of feed.

2. Add anti-stress drugs. In view of the physiological changes of ducks under high temperature, such as the use of salicylic acid and aspirin to reduce duck body temperature, the use of Chinese herbal medicine preparations such as patchouli, Acanthopanax senticosus and peppermint to increase immunity, remove dampness and aid digestion to achieve anti-stress effect.

3. Feed should be fresh. Reduce the content of feed purchased from the feed factory each time, and it is appropriate to use it in about a week to ensure that the feed is fresh. When feeding, feed less and add more, especially when using wet mixed powder, you should feed less frequently.

4. Adjust the feeding time. Feeding can be started 1-2 hours earlier in the morning at 4-5 in the morning, and the feeding time should be extended appropriately in the evening, so as to avoid the effect of high temperature on feed intake.

Second, control the environmental conditions to prevent heat stress

1. Reduce the heat of solar radiation. Sunshade should be set up on the water and land sports ground of the open duck house, and the roof should be thickened. During the period of high temperature, you can sprinkle water on the roof or spray water atomization in the house, and do a good job of greening.

2. Accelerate the heat dissipation of ducks. Make sure the duck house is open around and increase the ventilation. Give ducks clean tap water or cold water, use ventilation equipment to strengthen ventilation to ensure air flow. Ventilation should also be strengthened at night so that ducks can regain their physical strength at night and alleviate the effects of extreme heat during the day.

3. Reduce the feeding density. Reducing the number of feeding in the duck house and increasing the number of water and trough in the duck house can reduce the total heat production due to the decrease of the number of ducks in the duck house, and avoid the increase of individual heat production caused by food competition and crowding caused by the lack of food trough or sink.

4. Keep the duck house clean and dry. Adopt reasonable feeding and drinking feeding methods to reduce the water content in feces and prevent the harm caused by high humidity in the house under high temperature: (1) increase the cleaning times of duck house and shorten the time of duck dung in the house. (2) the sink should be placed around the duck house as far as possible to prevent the meat duck from spilling water into the house. (3) Duck houses using water and land sports grounds should build sunshades in land sports grounds, so that ducks can have more rest in land sports grounds after playing in the water, and then enter the duck shed after the hair is dry, so as to reduce the chance of duck excretion in the shed.

III. Prevention and eradication of diseases should be done in place.

1. Strengthen the prevention and control of epidemic diseases. Do a good job of immunization and disease treatment in time; pay attention to the food intake, drinking water and defecation of ducks, and take measures once abnormal are found.

2. Change the way of feeding. Change the thick bedding material on the ground into online flat breeding to prevent meat ducks from coming into contact with feces, so as to reduce the chance of disease transmission and reduce the incidence rate.

3. Reduce the interference to the duck flock. Avoid disturbing the duck flock, reduce the activity of the duck to a minimum, and reduce the increase of duck body heat.

4. Do a good job of daily disinfection. Improve the disinfection system to prevent the decline of duck resistance caused by the invasion of harmful microorganisms, prevent the breeding of flies and mosquitoes, protect ducks from insect pests, and enhance the anti-stress ability of ducks.