9. How to feed cows with silage? Should pay attention to what? A: After the silage is sealed, it usually takes 40 to 50 days (the shortest time is 21 days) to open the cellar. At the time of access, the rectangular cellar should be taken vertically from one end. When the material is taken in stages, the long white hair or decay around the cellar must be carefully sorted out. After each retrieving, the silo is to be tightly closed and pressed with a plastic cloth. In fact, prevent the second fermentation. Feeding methods: Feeding cattle with silage for the first time should be followed by several days of training, so that cattle gradually become accustomed to feeding silage. The amount of feed should be increased from small to large and gradually increase. It can be mixed with other feeds and fed. Single feed silage. Feeding amount: Generally per head per day: Yak 5 to 10 kg, adult fattening cattle 8 to 15 kg. 10. What are the advantages of using silage to produce corn silage? A: Barley corn is maize that is cooked when corn is cooked and waxed when the wax is cooked. In people's habits, corn kernels are used as a concentrate feed, but they are unwilling to cut corn into silage during milk-cooking and wax-cooking. This is considered a pity. In fact, there are many silages produced from highland corn. Benefits: (1) The ratio of total nutrients obtained per unit area to the amount of total nutrients per unit area increased by 15% for barley corn compared with corn harvested after ripening. The digestible crude protein is similar, and carotene is 20 times higher. The nutritional characteristics of barley corn are: rich in carbohydrates, more soluble sugars, slightly sweet, beef cattle like to eat. Therefore, its digestibility is higher than that of mature corn. (2) The yield of highland barley maize is high, the yield per mu is up to 4,000 to 6,000 kilograms, the sowing period is long, and it is easy to include in the crop rotation plan. From April to July, it can be divided into batches, so the utilization period is also long. (3) The harvest of the barley maize can be advanced by about 10 to 20 days, which can increase the land utilization rate, increase the multiple cropping index, and arrange the sowing time more flexibly. The labor force arrangement is not limited by the season. (4) Maize that is cooked with milk and wax is harvested with suitable moisture content and more sugars. It is an excellent silage material and can be used as a high-quality silage with fragrant odor, good palatability, and low production cost to develop cattle industry. , It is worth promoting. 11. What are the benefits of adding urea to silage? A: Corn silage and other silage contain high energy, but the protein content is very low. Only 2.3% of crude protein was calculated as wet weight. If 5 kg of urea is added to 1 ton of silage corn stover during silage, the crude protein of silage corn stove feed can be increased by 1.4%. Feeding young cows and empty cows with this urea-added silage can satisfy their protein requirements. At present, the use of urea to feed beef cattle is to mix the urea melt with the concentrate before feeding. Although this can achieve the effect of protein supplementation, it affects the feed intake of the concentrate to the cattle. When urea is added to silage, the relative concentration of urea is reduced due to the large amount of feed, which will not affect the feed intake of cattle to silage. Method for adding urea to silage: Before the silage begins, first mix the urea into a solution of 25% (ie, 100 kg of water and add 25 kg of urea), store it in a certain container, and then pick it up while silage. The urea solution was sprayed on the surface of the corn stove with a micro sprayer. The spray volume is: spraying 25% urea solution 20 kg per ton of corn silage. Spraying, while installing the pits, requires uniform spraying.
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