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The large amount of crop stalks harvested in the fall can be processed and prepared to feed livestock. The commonly used methods of processing modulation are physical, chemical, and biological methods. Mechanical processing: The use of machinery to shorten, smash or rub the rough feed, because the straw feed is relatively rigid, easy to chew after processing, can reduce the energy consumption of livestock and poultry, increase feed intake of livestock and poultry, and reduce feed waste during feeding.é“¡ Short: Use rake to cut roughage into 1-2 cm long. If the straw is softer, it can be slightly longer. The corn stalk is rougher and has nodules. It should be about 1 cm long. When corn silage is silage, it is chopped with a rake to facilitate compaction. Smashing: Feeding livestock and poultry after crushing the roughage can increase the feed utilization rate and facilitate the mixing of the concentrate feed. The goat's roughage should be crushed in winter and spring, and the fineness should not be too fine for rumination. The bottom diameter of the mill screen should be 8-10 mm; the hay powder for pig and poultry compound feeds should be crushed into noodles. Powdered for thorough mixing. Rubbing: The kneading machine can knead the straw feed into a strip, which is especially suitable for the kneading of the corn stalk. Crushing the straw and feeding the ruminant livestock can improve palatability and feed utilization. Salinization: Salinization is the use of 1% salt water, with equal weight of chopped or crushed straw fully stirred into the container or piled on the cement floor, cover the plastic film, place 12-24 hours, so that It softens naturally. Straw salinization can significantly improve the palatability and feed intake of livestock and poultry.