Dairy breeders should make full use of local feed resources to ensure the feed supply of high-yielding cattle. For a high-yield dairy cow, dairy farmers should be prepared for the year's reserve and supply of forage material. Specifically, hay should be prepared for 1300-2200 kg (with a certain percentage of leguminous hay). There are 10,000 to 12,500 kilograms of corn silage is enough, for the roots, tubers and fruits need 1500 to 2,000 kilograms, bad residue requires 2000 to 3000 kilograms, 2500 to 4000 kilograms of concentrate feed is good (high energy concentrate feed 50%, protein feeds account for 25~30%, mineral feeds should account for 2~3% of concentrates).
Every year, the dairy breeder should conduct a routine nutrient analysis and determination of various feeds for dairy cows, and determine the applicability and economic value of the feed. Today, we strongly encourage the planting of leguminous herbage and promote the modulation of grass hay because they have the advantages of green, aromatic, soft stems, many leaves, and less impurities.
For dairy cows, it is happiest to eat whole-plant silage corn that is rich in sugar and has dry matter above 25%. Silage corn that meets these conditions should be stored during the waxing period. At the time of harvesting, all kinds of rhizomes with high moisture content can be mixed with Leguminosae and Gramineae besides air drying or incorporation of 10-20% of bran. However, it is best stored with plastic film or silo (cellar), and the resulting silage is yellow-green or brown-yellow, with a slightly acidic odor and alcoholic flavor. Dairy cows are particularly fond of it.
In addition, dairy cattle breeders should use as much as possible the choice of dry roots and sugar-rich tuber, tuber, and melon fruit feeds for storage. Should also pay attention to anti-mildew and anti-freezing during storage (the moisture content of stock concentrate must not exceed 14%). Before the cows are fed, the dairy breeder cleans the storage and cuts them into small pieces. The bad residue feed can be mixed with chopped straw in addition to single feed. Before cereal feeds are fed, they should be crushed into 1 to 2 cm coarse grains or flattened. It is advisable for the dairy breeder to not process too much feed at one time and feed it in 10 days.
The source and composition of mineral feeds have an important impact on the yield of dairy cows. In mineral feed, there should be salt and a certain percentage of constant and trace mineral salts (such as bone meal, calcium carbonate, calcium dihydrogen phosphate and trace elements). For compound feeds, dairy cow breeders should use feed ingredients for processing and configuration according to local feed resources, nutrients of various feeds, and nutritional needs of high-yielding dairy cows.
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