Practical technique of mixed planting of fescue and alfalfa and its effect on dairy cows

In the early lactation, dairy cows like to eat diets containing stalks of fescue or grassland. Farmers are also optimistic about their achievements. According to the University of Wisconsin study, milk production can be maintained at a normal level in this way. In some cases, milk production can even increase by 3-4 pounds per day, which may be partly due to the results of cows eating more. Dairy farms add large amounts of corn silage to their diets, and cows consume too much non-fibrous carbohydrate (NFC). NFC has a high content of starch and sugar in 35% corn silage, which is easy to cause acidosis of dairy cows, followed by hoof disease, and NFC has almost no such problems in 25% of alfalfa silage. Therefore, it is necessary to minimize the NFC content in silage, and the grass with NFC content of 12-14% can help solve the problem of poisoning, but because of the high content of grass neutral detergent fiber (NDF), excessive intake of this silage Can result in reduced feed intake and reduced milk production. The study found that replacing 7% of corn silage or alfalfa silage with 14-15% of high-quality T. chinensis or T. chinensis silage can solve the problem of acidosis without affecting feed intake and milk production. The diet is characterized by high fiber content and fast digestion.

Other studies have found that a mixed diet of fescue and alfalfa can improve the health of the dairy herd. Because the fiber in the feed is more digestible after adding the fescue, the relative feeding value can reach 150, and the relative forage quality is 200 or higher.

The braided fescue was originally intercropped in the existing depression, and this year's mix of 10 pounds of fescue and 12 pounds of cockroaches was more effective. The premise of this kind of planting method is that we must choose the mature fescue varieties at the same time. Compared with the single species, the hay yield of mixed sowing is obviously increased, it is easier to be bundled, and it is more compact in silage, and the per mu of hay is produced. The amount of milk can be increased by more than 40%.

This model is currently being watched by many growers. The key is to select fescue varieties with high digestibility, stable yield throughout the growing season, resistance to rust, and symbiosis with new endophytic fungi. The ratio of fescue to alfalfa is preferably 30:50, or 6 pounds of fescue: 10 pounds of alfalfa seeds. There is a difference between the harvest and the unicast cockroaches. Since the mixed grass is dried faster, the castration is started at a water content of 60-65%, and cut into 3/8-3/4 inch segments, and bacterial inoculation is added. The agent is used after silage.