What should I pay attention to when feeding feed to laying hens in hot weather?

First, pay attention to adding seasoning feed.

When the temperature is high in summer, the feed intake of chickens decreases. Adding some seasoning feed to the feed is of great help to improve the feed intake. Therefore, under the premise of ensuring feed quality, we should adopt safe and reasonable edible spices such as decalin, p-hydroxybenzoic acid and sodium glutamate to increase the intake, so as to improve the palatability and appetite of feed.

Second, moderately increase the concentration of feed nutrients.

In summer, when the working temperature exceeds 25℃, the feed intake of chickens will be correspondingly reduced, and the intake of nutrients will also be correspondingly reduced, thus reducing the laying characteristics and egg quality of laying hens. Therefore, it is necessary to compensate with a diet with a higher concentration of nutrients. In high temperature season, the kinetic energy of laying hens is lower than that of feeding standard. Some authoritative experts believe that the concentration of feed kinetic energy should be moderately reduced in summer; However, kinetic energy is very important for laying hens to decide their egg production after birth. High temperature often leads to insufficient kinetic energy intake due to low intake, which is harmful to laying eggs. The experiment shows that in high temperature weather, adding 1.5% cooked soybean oil to the feed can significantly improve the egg production. Therefore, it is necessary to moderately reduce the consumption of grain feed such as corn, so that it generally does not exceed 50%-55%, and at the same time moderately increase the concentration of nutrients in the feed to ensure the normal and full play of its manufacturing characteristics.

Third, common problems in feeding laying hens' feed in hot weather

1. Give due consideration to increasing the feed supply in protein.

It is hot in summer, and the feed intake of chickens is low. Only by properly raising the level of protein in feed and ensuring the balance of carbohydrates can it meet the needs of laying hens for protein, otherwise the laying rate will be endangered due to the lack of protein. The content of protein in the feed for laying hens in hot season should be increased by 1-2 points compared with other seasons, reaching more than 18%. Therefore, it is necessary to increase the amount of bean cake feed such as bean cypress and cottonseed cake in the compound feed, and moderately reduce the amount of animal protein feed such as feed, so as to increase the delicacy and increase the intake.

2. Use feed additives with caution

In order to prevent the phenomenon of laying eggs and the decline of laying performance caused by high temperature and other factors, it is necessary to add some anti-stress additives to feed or drinking water. If 0. 1%-0.4% vitamin C and 0.2%-0.3% ammonium chloride are added to drinking water, the thermal stress reaction can be significantly staged. According to the detailed introduction of the materials, adding 0.04% zinc bacitracin to the diet can keep the balance of beneficial bacteria in the stomach, promote the digestion and absorption of nutrients and improve the feed conversion rate. At the same time, it also has the effect of anti-stress reaction. Adding 0. 1% fumaric acid to feed or drinking water can reasonably stage the heat stress reaction, increase the feed intake and increase the egg production of chickens. Under the stress conditions of high temperature, high temperature and low temperature, adding 0.3% sodium bicarbonate into the feed, dissolving it in cold water first and then mixing it, and feeding it after 10- 15 minutes, has a significant effect on improving the heat resistance and egg production of laying hens, and can also reduce the breakage rate of raw eggs. But we must pay attention to the dosage of additives to prevent the loss outweighs the gain.

3. Rational use of mineral feed

Phosphorus can reduce the heat stress reaction and increase the phosphorus content in the diet as much as possible in hot season. At the same time, the calcium content in the diet of laying hens can be increased to 3.8%-4%, so as to ensure the balance of calcium and phosphorus as much as possible and maintain the calcium-phosphorus ratio of 4∶ 1. However, the high calcium content in the mixed feed will endanger the taste. In order to increase the calcium intake of laying hens without endangering the delicious feed, in addition to increasing the calcium content in the feed, it can also be supplemented independently for chickens to eat at will to meet their physiological needs.

4. Adjust the time and feed skillfully.

In summer, the temperature is low in the morning and evening. At this time, the feed intake of laying hens is also relatively large. The feeding time can be adjusted, and feed is added once before turning off the lights in the morning and evening to ensure that chickens can get enough feed.

In addition, some Chinese herbal medicines can also be used to relieve or cure heat stress reaction, such as Jieshu powder, mixed with Pogostemon cablin, honeysuckle tea, Radix Isatidis granules, Radix Paeoniae Rubra, Radix Gentianae, etc. , and added to feed at the ratio of 65,438+0%. The medicine has the effects of clearing away heat and purging fire, detoxicating and promoting diuresis, and has no adverse reaction.