Consultation: Ask the experts, how to use cottonseed cake reasonably to feed livestock?
Answer: Cottonseed cake is a protein feed commonly used in livestock production to feed livestock. However, since cottonseeds contain gossypol and cyclopropene fatty acids that are harmful to animals, especially gossypol is very harmful. Excessive intake or long-term intake of monogastric animals can lead to growth retardation, reproductive performance and production performance, and even lead to death.
Although rumen microbes can degrade gossypol and reduce its toxicity, the proportion of cottonseed cake in the diet should also be controlled. Do not use cottonseed cakes in dry cows and bull diets. Small amounts can be added to yak diets. In adult cows, the amount of cottonseed cake is generally not more than 20% of the concentrate. In the shelf fattening diet, cottonseed cakes account for 60% of concentrates. For the removal of cotton seed cake gossypol toxin, the following methods can be used.
One is to take the amount of grass ash or lime added to 100 kg of water and mix well. After precipitation, soak the cottonseed cake in the supernatant overnight. The ratio of the cake liquid is 2:1. After soaking for 24 hours, use the clear filtrate for 3 to 4 times. The second is to add 1.25 tons of ferrous sulfate per 100 kilograms of soil in the pressed cotton seed cake, and only 0.15 to 0.2 kg of machine squeezing mash, then soak in the appropriate amount of water for 4 to 6 hours. The third is to use 2% ammonium bicarbonate or 1% urea solution evenly sprayed on the cottonseed cake flour and mix well, when the cake powder moisture content of 15% is appropriate, and then sealed with a plastic film boring for 24 hours, you can Feeding. The fourth is to use 15% soda solution 24 kg sprayed on 100 kg of cotton seed cake, fully mix and seal with a plastic film boring for 5 hours, and then steamed for 50 minutes to dry. It can also be soaked in sodium hydroxide solution with a concentration of 1% for 3 to 4 hours and then drained off, rinsed with water, and dried. Cook for 3 to 5 minutes at 110°C.
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