Cage raising techniques for black-bone fowl to facilitate management and improve efficiency

Caged black-bone fowl

1. Lighting:

From the age of 20 weeks, caged black-bone chickens can not increase the laying rate by natural light alone, so it is necessary to supplement 0.5 hours of artificial light every day. From 21 weeks old, an increase of half an hour per week to the peak of egg production, that is, 30-32 weeks old, natural plus artificial light up to 15-16 hours per day, light intensity 5-10 watts, 2 months before elimination, can be changed to 17 hours.

In the process of artificial illumination, the distribution ratio of light bulbs in chicken house is 1: 1. 5, that is, the distance between each row of light bulbs and light bulbs is 1.5 times of the distance between light bulbs and chicken body. If the chicken house is large, it can be illuminated by more than two rows of light bulbs, requiring that the two adjacent rows of light bulbs show staggered distribution. In the case of multi-layer cages, the light bulbs on each column of channels should be scattered and arranged in a jagged manner.

two。 Broken beak:

Some people think that caged black-bone chickens do not have to break their beaks, but in fact, even if they are raised in individual cages, some chickens peck their anus and feathers through the gap between cage nets. The pecking habit of chickens can reduce the laying rate, and in serious cases, it can cause death. Therefore, it is necessary to cut off the beak twice for black-bone chickens. It can be done as early as 5-9 days or 12-13 weeks before cage. the upper beak is cut off by beak-breaking machine at the 0.5cm in front of the nostril. When the beak is cut off, it is longer than the upper beak. Before breaking the beak, add vitamin K in the water to prevent blood flow; after the beak is broken, increase the amount of feed and water depth in the sink, trough and drinking fountain.

3. Create a suitable environment:

The suitable temperature of the chicken house should be 18-20 ℃ and the relative humidity should be 60%-75%. Below or above this range, corresponding measures must be taken. Due to the high relative density of caged black-bone chickens, the temperature and humidity of the chicken house are different in different seasons, which requires farmers to do a good job in advance according to the changing conditions at any time. In order to prevent summer heat, heat insulation is installed on the top of the chicken house, and ventilation and cooling facilities are installed in the chicken house to remove feces in time and reduce ammonia. When ventilated, the wind speed is no more than 17 meters per second near the chicken. In the cold winter, do a good job of keeping warm, in order to avoid the attack of thieves and cold wind, hang a warm door curtain at the door. In short, it is necessary to prevent heat in summer and keep warm in winter.

4. Minimize stress reactions:

Black-bone chickens are docile, timid and frightened. Once frightened, they will affect ovulation, especially during the laying period. It is necessary to keep the flock quiet. Two weeks before the start of production, transfer to the egg cage to have time to adapt to the new environment. Breeders should try to eliminate all interference factors, vaccination, refurbishment of chicken coops, chicken cage cleaning, disinfection and other work should be completed before the chicken cage. In daily work, such as feeding, cleaning feces, cleaning chicken coops, etc., so that the movement is light, the voice is low, the chickens are less frightened, strangers are refused to enter, and animals are prevented from entering, such as cats, dogs, birds and so on.

5. Reasonable feeding density:

This is very important. If the breeding density is high, the egg laying rate will decrease. The ideal feeding density is that each black-bone chicken occupies an area of not less than 400 square centimeters at the bottom of the cage. In order to facilitate the feeding of chickens, the length of feeding trough and flume for each chicken is not less than 13cm.