A kind of semi-fermented milk cow bedding material and its preparation method and application
A semi-fermentation and bedding technology, which is applied in the field of dairy farming, can solve the problems of dairy cows’ udders and hooves being harmful, poor water permeability and air permeability, and can’t play the role of bedding materials, so as to achieve low moisture content, not easy to agglomerate, and avoid anaerobic The effect of bacterial growth
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Embodiment 1
[0020] Use extruded and dehydrated cow dung (about 70% moisture) and sawdust (50% moisture), mix according to the ratio of cow dung: sawdust 3:1, and the moisture content after mixing is about 65%. The raw materials are stacked into a long stack with a height of 0.7m, a width of 1.5m, and unlimited length, and the stack is mechanically turned once a day to maintain the oxygen in the stack. After 4 days of fermentation, the temperature reaches around 70°C. When the pile temperature exceeds 70°C, except for some thermophilic bacteria, most of the harmful bacteria and insect eggs are killed. Continue to ferment for another day, flatten the fermentation piles, let them cool down and stop fermentation. At this time, because the fermentation time is not long, the fibers in the cow dung and sawdust are not destroyed. Because of the high moisture, let it dry for three days to further reduce its moisture to about 30%.
[0021] In the cow bed laid by the prepared bedding, the thickne...
Embodiment 2
[0023] Choose dehydrated cow dung (about 70% moisture) and sawdust (moisture 50%), mix according to the ratio of cow dung: sawdust 1:1, and the moisture content after mixing is about 60%. The raw materials are stacked into a long stack with a height of 0.7m, a width of 1.5m, and an unlimited length; the stack is mechanically turned once a day to maintain the oxygen in the stack. After 6 days of fermentation, the temperature reaches around 70°C. When the pile temperature exceeds 70°C, except for some thermophilic bacteria, most of the harmful bacteria and insect eggs are killed. Continue to ferment for two days, flatten the fermentation stacks, let them cool down and stop fermentation. At this time, because the fermentation time is not long, the fibers in the cow dung and sawdust are not destroyed. Because of the high moisture, let it dry for two days to further reduce its moisture to about 38%.
[0024] In the cow bed laid by the prepared bedding, the thickness of the layin...
Embodiment 3
[0026] Choose dehydrated cow dung (about 70% moisture) and sawdust (moisture 50%), mix according to the ratio of cow dung: sawdust 2:1, and the moisture content after mixing is about 63%. The raw materials are stacked into a long stack with a height of 0.5m, a width of 1.0m, and an unlimited length; the stack is mechanically turned once a day to maintain the oxygen in the stack. After 8 days of fermentation, the temperature reaches around 70°C. When the pile temperature exceeds 70°C, except for some thermophilic bacteria, most of the harmful bacteria and insect eggs are killed. Continue to ferment for two days, flatten the fermentation stacks, let them cool down and stop fermentation. At this time, because the fermentation time is not long, the fibers in the cow dung and sawdust are not destroyed. Because of the high moisture content, it was dried in the sun for three days to further reduce its moisture content to about 35%.
[0027] In the cow bed laid by the prepared bedd...
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