1. Mouldy, degenerate, can't feed
The mildew-producing oyster nutrients are destroyed, resulting in bad odors, increased acidity, mold-producing toxins, fever, agglomeration, and blackening, which can gradually or even completely lose the feed value. If you use a mildewed meal to feed dairy cows, the feed intake of cows will decline, and some poisoning symptoms such as digestive dysfunction and runny nose such as prostaglandic relaxation and reduction of rumination will occur. The amount of milk produced will decline, even Affecting dairy products, protein, milk fat, and lactose are all unsatisfactory; due to malnutrition of long-term feeding cows, affecting development, pregnant cattle even suffers miscarriage. Therefore, this not only threatens the health of the cows, but also brings some economic losses to the dead cows.
2. Do not add as much hay as possible
The energy concentration of alfalfa hay is lower than that of concentrates. Adding too much will not only reduce the dry matter intake, but also reduce the energy concentration of the diet so that the cows will not consume enough energy, resulting in a decrease in milk production.
The cow's need for barnyardgrass varies according to the age of the particular cow.
2.1 2-week-old 3-month-old yaks
Calves usually consume a small amount of pupae starting from 2 weeks of age. After 8 weeks of age calf intake will increase significantly. At this time, more than 18% of coarse grain protein and less than 42% of neutral detergent fibers are provided by wolfberry.
2.23-12 months old bred cattle
With crude fiber containing more protein and less barnyardgrass, 16%-18% and 14%-46% of neutral detergent fibers (33%~38% of acidic detergent fibers) can be fed. Scribbled grass.
2.3 12-18 months old bred cattle
The weight of the bred cow is between 227 and 454 kg. It can obtain or meet the needs of various nutrient components from high quality alfalfa diet containing 14% to 16% of crude protein and 45% to 48% of neutral detergent fiber.
2.4 18-24 months old bred cattle
You can use wormgrass diets that are slightly worse than other cattle age requirements. Adult cows should be fed with high quality barnyardgrass in the appropriate amount during late pregnancy to prevent the milk fever that occurs during delivery.
2.5 Lactation Early cows.
Postpartum lactating cows at 100 days postpartum should be fed wormwood diets containing 19% to 24% of refined protein and 38% to 42% of neutral detergent fibers. When using alfalfa containing lower crude protein and higher neutral fiber content, a certain amount of concentrated feed should be added to the diet.
2.6 Dairy cows in the mid and late lactation
During the mid and late lactation period (200 days after lactation), the milk production of dairy cows gradually declines, and the quality of low quality alfalfa grazing diets can be used to meet their nutritional needs.
3. To prevent the occurrence of bullock disease in dairy cows during green feeding
After the cows eat a large amount of fresh succulent grass, because they contain more saponin and soluble protein, they can produce gas in the rumen, change the physical and chemical characteristics of the rumen content, and thus change the ciliate, flagellum and stomach. Due to the quantity and quality of root worms, disturbances in the absorption and discharge of gases cause bloated diseases. When it is discovered that the disease should be treated promptly, the principle of treatment is exhaust decompression, preparation of leaven, removal of harmful contents from the rumen, and restoration of stomach function.
The prevention method is as follows: fresh grasses are wilted and wilted for 1-2 hours after castration and fed with other grasses. It is also possible to add a small amount of pulkan dispersion (polyethylene-polypropylene alcohol polymer) when feeding quail and drinking water.
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