Summer is the most difficult season for laying ducks in a year. High temperature causes severe heat stress response to laying ducks. Clinical manifestations include reduced feed intake, increased drinking water, excessive feces, decreased egg production, and dirty eggshells. , Death from heat stroke may also occur. Therefore, it is very important to prevent the summer heat of the laying ducks. In the actual production, the following measures are generally taken to alleviate the summer heat stress of laying ducks:
1 Low stocking density
Reduce stocking density to prevent damage to ducks caused by crowding, stacking and warming, and increase the basin's food troughs. Heatstroke cooling, pay attention to shade, keep good ventilation inside. Clean up the pens once a month, change the bedding, and ensure sufficient clean drinking water. Adding vitamin C to drinking water or adding baking soda to feed can relieve heat stress and prevent egg production from falling. Every morning and evening, 100 poisoning or peroxyacetic acid can be used to disinfect ducks, which can not only reduce the temperature but also prevent the occurrence of infectious diseases. Disinfection with duck spray is a very effective method.
2 Adjust feed formulation
The duck duck diet formulas vary in different fertility stages. The summer feed formula should meet the requirements of all amino acids and keep the protein level as low as possible to reduce feed digestion heat. After more than half a year of continuous egg production, the female duck suffers from a decline in its physical fitness. It is prone to stop production and moulting before and after the summer solstice. At this time, it is necessary to feed less corn and rice on the feeding and feed the compound feed more quickly to restore strength and strive for the first production. Years of egg production.
3 Change feeding methods
The adoption of a net-based mode will reduce contact between ducks and feces, reduce the spread of disease, and reduce the incidence of disease. It will also reduce the nutrient consumption and heat production of ducks.
4 timely feeding time
Try to feed at a cool time after 8 o'clock in the morning and after 10 o'clock in the evening.
5 Reduce sun exposure
Build high and spacious duck houses where you can spray or spray water on the roof during high temperatures. Summer sunshine hours are long. Some duck farmers are accustomed to nighttime lighting, and the day and night illumination time is far longer than the normal light time (16~17h) of the laying ducks, which affects the resting of the ducks, and the continuous long-term lighting keeps the ducks from producing eggs. Peak duration has an impact. Turn off the lights on time at 10 to 11 o'clock in the evening to ensure that the ducks have a quiet environment during the egg production period between 1 and 4 am.
At high temperatures during the day, the intake of ducks and ducks decreased. The ducks should eat 150~160g of compound feed for a day and night, white ducks and yellow ducks should eat 150~200g. If this standard is not met, ducks will easily fall out. Because of insufficient feed intake, insufficient calcium and phosphorus, they may produce soft-shelled eggs, thin-shelled eggs, and even egg production rates will decline rapidly. Supplementing 1 time at 10 to 11 o'clock in the evening can make up for the lack of feeding during the day. At the same time, it can also be used to supplement the physical energy consumed after laying eggs.
6 Supply fresh, high-quality feed
If the feed is placed too long during high temperature and high humidity, or the feed in the feed tank is stagnant for too long, it will cause deterioration of the fermentation and should ensure the supply of fresh feed.
7 Keeping the environment quiet
In hot weather, sudden fright and noise must be avoided to disturb the duck population and the duck population should be kept to a minimum. The duck and duck body covers feathers and no sweat glands, and only heats up by breathing and drinking. Excessive drinking water can easily lead to imbalance of ion balance in the body; after discharge, a large amount of carbon dioxide is excreted and the acid-base balance in the body is disordered. At this time, ducks appear to be diarrhea, production drops, and even infection occurs, which seriously affects production. Drinking water can be added to electrolytic multidimensional or oral rehydration salts to prevent this from happening.
Oral rehydration salt formulation for poultry: sodium chloride 3.5g, sodium bicarbonate 2.5g, potassium chloride 1.5g, glucose 22g, water 2 000ml. In addition, multidimensional and antibacterial drugs can be added.
8 Strengthen disinfection and epidemic prevention
Do a good job of disinfection to prevent flies and mosquitoes from breeding, so that the ducks will not be harassed by pests. In the summer, the weather is changeable. Suddenly blowing winds, showers, and thunderstorms can easily cause stress in laying ducks. Lighter people can cause decreased egg production. In severe cases, it can cause bird flu and other diseases. The use of a certain amount of antibiotics before adding drinking water to electrolytic multidimensional and climate change can effectively prevent stress.
9 Increase the number of water bath
After the duck is fed, the duck is washed into the water every day, 4 to 5 times a day in summer, and the water can be freely discharged. The night ducks need to release water once every 20 minutes, and every day at 10:00 in the winter and 2 to 3 in the afternoon. Each time the water is released, 5 minutes each time. After releasing the water, let the duck rest in the shade and avoid exposure.
Tetanus Shot,varicella vaccine,Hepatitis B Injection,Hep B Vaccine
FOSHAN PHARMA CO., LTD. , https://www.fospharma.com