Hay is a very nutritious feed for meat-raising donkeys. How to make green feed artificial drying method: Artificial drying method uses heat and ventilation to modulate hay. Drying time is short, nutrient loss is small, and high-quality hay can be prepared. There are room temperature, low temperature and high temperature drying method.
Normal-temperature ventilation drying method is to use the high-speed wind power of common fan or heating fan to dry pasture in the grass store: low-temperature method can use 45-50°C temperature to stay in the small room for several hours to dry the grass: the meat donkey is 500- Hot air at 1000°C is dehydrated for 6-10 seconds. There is also a simple artificial drying method, that is, the application of chemical agents. The commonly used chemical agents are also called desiccants and include formic acid, silicic acid and the like.
The prepared good quality hay should have a greenish color, aromatic odor, complete plants, high amount of table leaf, less sediment, no impurities, no mildew and deterioration, and moisture content below 15%. High quality hay can be chopped and fed with meat fodder mixed with concentrated feed. It can also be used to produce pelleted feed.
Roughage refers to feeds for meat donkeys with dry matter containing more than 18% crude fiber, including hay, straw, and oyster shells.
1, low crude fiber content, low digestibility. The roughage of meat donkey roughage is generally 25~50%, and the content of hay is less, 25~30%. Crude fiber contains more lignin, which is difficult to digest and poor in palatability. The donkey digestibility of organic matter in the roughage is below 70%.
2. The protein content in roughage varies greatly, and the quality is poor. The meat donkey price is 10~19% of the crude protein of Leguminosae, 6–10% of grass hay, and 3–5% of grass straw and oyster shell. The crude protein in straw and oyster shells is hardly digested by donkeys.
3, high calcium content, low phosphorus content. The calcium content of legumes hay and straw cultured by meat donkeys is about 1.5%, and the calcium content of grass hay and straw is only 0.2-0.4%.
4, rich in vitamin B content, other vitamin content is less. The donkey high-quality hay contains more carotene, especially the sun-dried leguminous hay, which contains a lot of vitamin B. The various straws and oyster shells contain almost no carotene and vitamin B family.
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