Rapeseed cake is a good protein feed. Using it to feed chickens can not only solve the problem of protein feed, but also greatly reduce feed costs. However, rapeseed cakes contain glucosinolates and are susceptible to toxic substances in poultry by the action of mustard hydrolyzing enzymes. Moreover, if the rapeseed cake is directly fed, it is not only spicy but also poor in palatability, and the feed utilization rate is very low. Therefore, you should pay attention to the method during use: 1. Use the correct method of detoxification. In order to use rapeseed cake safely, the rapeseed cake should be detoxified as necessary. More commonly used methods are: 1 pit buried method. Select high-drying terrain, good soil (bright tree shade), dig a wide, deep 0.8m rectangular pits, the length of the decision depends on the amount of rapeseed cake, within the shop 3cm thick wheat straw, will crush The finished rapeseed cake is immersed in the pit with 1:1 water and mixed with water. A layer of thin wheat straw is placed on the top of the rapeseed cake, and then the soil is covered with a depth of 40 cm to open the drainage ditch around to prevent the infiltration of rainwater. After two months, you can use it. Note that rapeseed cakes that have become moldy are not suitable for feed. This method requires no other equipment and the detoxification rate is over 90%. 2 cooking method. For small-scale small-scale feeders, the crushed rapeseed cake can be soaked in warm water for 8 to 12 hours (hours). Drain the water, add fresh water and boil for 1 hour (hours), and keep stirring to evaporate the glucosinolates. Then you can feed chickens. 2. The amount of feeding should be appropriate. In general, the feeding amount of growing chickens may account for 10% to 15% of the concentrate amount; the feeding amount of laying hens accounts for 5% to 10% of the concentrate amount. This standard is not static and the actual amount of feed should be increased or decreased according to local rapeseed varieties, oil extraction technology and soil sulphur content. 3. Feed green feed. Proper feeding of green feed can improve palatability and reduce the toxic effects of rapeseed cake. However, cruciferous plants rich in mustard enzymes, such as cabbage, radish, and cabbage, should not be fed. 4. When mixing ingredients, stir it evenly. To prevent the feed mix unevenly, causing the chicken to eat too much rapeseed cake poisoning. Never use mildewed rapeseed cake to feed chickens.
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