Key points for safe and efficient use of green and green feed

(1) Safety Feeding Points for Green Green Feed 3tn China Feed Industry Information Network - Based on Feed, Serving Livestock

1. Moderate feeding. The amount of green feed is closely related to the species, production performance, physiological stage and environmental conditions of the livestock and poultry. Ruminant livestock such as cattle and sheep can use more green feed and can be used as the sole source of feed; but pigs, chickens and other omnivorous animals, green feed can only be used as a supplementary feed. Green-green feed pigs can generally account for about 30% of pig diets. Feeding of piglets and finishing pigs should be reduced. Empty sows and sows in the second trimester can increase the amount of feed, and green feed can account for 50% of the diet. %. Chicken feeding green green feed is mainly used as a vitamin supplement. The amount of green feed is generally 15% to 20% of the chicken diet, and 20% to 30% of the adult chicken diet. Although cattle and sheep can use more green feed, there are still limits. For example, the average cows are fed 30-50 kg per day; adult beef cattle 15-20 kg; adult sheep 5-8 kg. In summer, the feeding amount of green and green feed for livestock and poultry can be increased or decreased according to the temperature of the temperature. The temperature increases, the green feed can increase the feed amount appropriately, and the temperature drop can appropriately reduce the feed amount. 3tn China Feed Industry Information Network - based on feed, serving animal husbandry

2. Freshly fed. When feeding green poultry to livestock and poultry in summer, it is best to supply freshly according to the needs of livestock and poultry. Because green silage is stored in piles, it is heated and fermented under high temperature conditions, and most vitamins and proteins are denatured, activity is reduced, and even destroyed. Some non-protein nitrogens such as nitrates contained in the stems and leaves form nitrite under the action of nitrifying bacteria and nitrate enzymes. If livestock and poultry consume green-green feed containing nitrite, diarrhea will occur in livestock and poultry with low food intake, and nitrite poisoning will occur in livestock and poultry with large feed intake, which will lead to death. 3tn China Feed Industry Information Network - based on feed, serving animal husbandry

3. Feeding at the appropriate time. Harvest time for green-green feed for livestock and poultry should be appropriate. The green-green feed is harvested too early, not only is it safe to feed livestock and poultry, but also has low grass yield. Therefore, the timing of green-green feed for feeding livestock and poultry should be comprehensively considered in terms of grass yield, nutrient content and feeding safety. 3tn China Feed Industry Information Network - based on feed, serving animal husbandry

4. Prevent poisoning. In order to prevent the occurrence of pesticide poisoning, pesticides should be sprayed on vegetable fields, farmland, orchards and cotton fields associated with green-green feed production. High-efficiency and low-toxic pesticides should be used as much as possible, and pesticides should be fully mastered before cutting for green-green feed. The time of spraying, the type of pesticide and the safety interval should be as follows. After the pesticide is sprayed, it is confirmed that the green feed can be safely used and then harvested to prevent pesticide poisoning. Some kinds of greenish feeds contain some toxic substances or are easily turned into toxic substances. For example, the hibiscus in the leguminous grass contains coumarin. When the cattle eat the metamorphic hibiscus containing dicoumarin in the summer, they are poisoned. phenomenon. In order to avoid the occurrence of dicoumarol poisoning, when raising cattle to feed grass rafts, it is necessary to feed freshly, feed while feeding, and feed the amount from less to more, gradually increase the amount, do not feed the moldy turf . 3tn China Feed Industry Information Network - based on feed, serving animal husbandry

(2) Efficient use of green feeds 3tn China feed industry information network - based on feed, serving livestock

1. Choose the right type of green fodder. Cattle, sheep and other ruminant livestock can choose to feed some green fiber with higher crude fiber content, which can be mainly grassy green feed, such as ryegrass, fescue, sudangrass, mexican corn, royal bamboo grass, sweet forage. Gao Wei and so on. Pigs, rabbits, geese, etc. can use some crude fiber appropriately. Generally, greenish green feed with low crude fiber content can be selected, such as European chicory, pine leaf vanilla, Rumex, American amaranth, bitter amaranth, etc. After the ripening, the crude fiber content is higher, and the green fiber content with lower crude fiber content in the early growth stage, such as alfalfa, white clover, red bean grass, ryegrass, etc., is selected and harvested in the early stage of growth. Chickens, ducks, etc. need fresh, green content of less green, so the green feed for feeding chickens and ducks should be castrated at the early stage. 3tn China Feed Industry Information Network - based on feed, serving animal husbandry

2. Scientific matching. First, according to the difference in nutrient content of green feed, complementary feeding is carried out. Different types of green-green feeds contain different nutrients. The crude protein content of leguminous grasses is higher, and the grasses and pastures have higher crude fiber content. The combination of two kinds of pastures can form complementary nutrients and improve the utilization of nutrients of the two forages. rate. Secondly, according to the difference of nutrient and water content of green feed and roughage, mutual promotion can not only improve the palatability of roughage, but also solve the problem of reduced or no ruminant number of cattle and sheep caused by feeding alone. The third is to fully price the concentrate, roughage and green feed according to the growth and production needs of livestock and poultry. According to the nutritional characteristics of each type of feed and the nutritional needs of livestock growth and production, a fully mixed diet that meets the needs of livestock and poultry is produced to improve the production performance of livestock and poultry. 3tn China Feed Industry Information Network - based on feed, serving animal husbandry

3. Processing and feeding. Cattle and sheep are fed to the green and green feed, and the green and green crops can be crushed. The specific method is: on the drying field, first put about 25-30 cm thick wheat straw, and spread the wheat straw. Top 25 to 30 cm of green water with a high water content, then spread about 25 to 30 cm of wheat straw on the green feed, then pour it with a stone mill or a roller, and hydraulically spray the juice of the green feed. Absorbed by wheat straw. Pigs and geese can be beaten by feeding green green feed. The specific method is: beating the harvested green feed with a beater. The green feed after beating can be directly mixed with dry powder, or mixed with roughage grass powder. After that, it is fed with concentrate. 3tn China Feed Industry Information Network - based on feed, serving animal husbandry