Analysis on the problem of feed waste in laying hens

December 29, 2018

Feed costs in laying hens account for about 70% of the cost of eggs, so reducing feed waste is one of the main measures to reduce the cost of laying hens. Attention must be paid to reducing feed waste. Feed waste is divided into direct waste and indirect waste caused by low feed conversion rates.

1 direct waste

Chicken farms waste more feed than people expected. Generally, the amount of wasted feed accounts for 3%-10% of the annual consumption of feed. Doing the following work can effectively reduce waste.

1.1 Use a well-sized, well-structured trough. The size and structure of the trough have a great impact on the waste of feed. The trough is too small, the depth is too shallow, the brooding trough is small, and the feed is wasted. Therefore, it is necessary to select the size and the moderate and shallow materials for different breeds of chickens of different ages. groove. At the same time, we must end the cultivation and transfer to cages.

1.2 The height of the trough should be appropriate. When the position of the trough is too low, the chicken is easy to play with the feed and waste. Place the height so that it does not interfere with the feeding of the chicken, as high as possible. The upper edge of the trough is 2 cm higher than the chicken back.

1.3 Scientific and reasonable feeding. Excessive amount of material added at one time is the main reason for wasting feed. According to statistics, 40% is wasted when filling the trough; 10% is wasted when added to 2/3; 5% is wasted when added to 1/2; 2% is wasted when added to 1/3. Therefore, the amount of one feeding can not exceed 1/3 of the depth of the trough, and it should be scientifically and reasonably fed according to the feeding situation.

1.4 The feed size is appropriate. The shape of the feed is divided into powder, pellets and scrap. Granular and scrap waste is low, but production costs are high. The main use of powder in production, should pay attention to prevent too fine, too good palatability and easy to fly to cause feed waste, the granularity of chicken into 0.4-0.5cm is appropriate, too thick and easy to eat to cause nutritional imbalance.

1.5 The water level in the sink. The water level in the water tank should not be too high, especially when feeding dry powder, the feed on the chicken mouth will be wasted with the water flowing out, and the regular water supply will save the feed than the regular water.

1.6 to prevent the harm of wild birds and mice. Wild birds and mice will eat a lot of feed. According to statistics, one mouse can eat 9-10kg of feed in one year. At the same time, it causes feed pollution and spreads diseases. Therefore, the rodent control work must be done.

2 Waste due to low feed conversion rate

2.1 Egg production rate. The feed consumption of chickens increased with the increase of egg production rate, but the feed consumption increased little. When the egg production rate increases by 10%, the increase in feed intake does not exceed 7g. Therefore, we should start from strengthening the management of feeding and improve the egg production rate.

2.2 hen weight. Large-scale chickens need to maintain their own energy and have a large demand for feed. At the same time as laying eggs, chickens with large body weight have lower feed utilization than chickens with smaller body weight. The weight is too light, the egg production is small, and the feed utilization rate is not high. The medium weight level of the birds is maintained by controlling the amount of feed by species.

2.3 Health status. Healthy chickens have a high egg production rate, unhealthy chicken feed, no egg production or low egg production, and low yield due to poor health is one of the main reasons for the low feed conversion rate. Therefore, we must do a good job in disease prevention and control, and keep the health of chicken products good.

2.4 Dietary cooperation. Should meet the nutritional needs of laying hens according to feeding standards, especially the nutritional balance, pay special attention to the protein to energy ratio should be appropriate, amino acid balance, otherwise it will cause waste of feed.

2.5 house temperature. In winter, when the temperature in the house is low, the chicken consumes too much feed to maintain normal body temperature, and winter should pay attention to heat preservation.

2.6 Storage and storage of feed. The feed should be protected from light and moisture during storage and storage. The feed is hygroscopic and moldy. Long-term storage of vitamin A and vitamin E is easy to oxidize and reduce efficacy. Vitamin B is easily destroyed by sunlight. So give chicken fresh feed, don't store it for too long.

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