The cake raw materials such as soybean cake (粕) and rapeseed cake (粕) should be stored in a clean, dry, ventilated and cool place, and the total number of bacteria, Escherichia coli, Salmonella and Aspergillus flavus should be regularly detected. .
Pay attention to the following two points during storage:
1. The soybean cake (粕) obtained without heat treatment or insufficient heating contains anti-nutritional factors such as antitrypsin factor and erythrocyte prothrombin. When the content is too high, the digestion and absorption rate of the protein will be lowered, resulting in animal diarrhea, etc.; The utilization rate of basic amino acids such as lysine of the heat-treated soybean cake (粕) will decrease again.
2. The anti-nutritional factors contained in rapeseed cake (粕) are mainly metabolites of glucosinolates, which can cause liver hemorrhage in animals, goiter, and decreased blood coagulation. In addition, rapeseed cake (粕) also contains anti-nutritional substances such as tannin, sinapine, and saponin, which affect the feed intake of animals and reduce the digestion and utilization of nutrients such as protein. Therefore, the rapeseed cake (粕) should be detoxified before being used as a feed, and should also be used when formulating the diet. When the rapeseed cake (粕) is used in the laying hens, the content of trimethylamine in the egg rises, often with astringency, which will lower the quality of the egg.
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