In the production practice, how to scientifically and rationally use green roughage?
First, different measures should be taken according to the different growth stages and production types of the domestic pigs. Suckling piglets: Feeding green roughage generally should be based on breastfeeding. High-energy, high-protein mixed concentrates should be used, but a small amount of green and tender green materials can also be used as a stimulating material to promote its rapid acceptance and early adaptation and subsequent increase in weaning weight.
Breeding Breeding Pigs: Especially in the empty period and pre-pregnancy period of sows, large amounts of green roughage can be used, supplemented with a small amount of fine material can also meet their nutritional needs. In the later stages of pregnancy and lactation, the amount of crude roughage should be reduced, and the amount of concentrate should be appropriately increased. The crude protein and crude fiber content should be 14% and 8%. Boar crude fiber content of 7% is appropriate.
Growing and Finishing Pigs: Since such pigs have different differences in the use of green roughage at various stages of growth, in general, the ratio of mixed medium to green material for small, medium and large pigs should be 1 1:1, 1:2, 1:3. If the conditions permit, the proportion of green roughage fed can be appropriately reduced about 30 days before slaughter, and the proportion of refined material is increased at the same time, which is more advantageous for shortening the fattening period and increasing daily weight gain. In addition, when formulating the diet and measuring its crude fiber content, the crude fiber content of all feeds in the diet should be included, so that the total amount of crude fiber in the diet should not exceed 7%, and medium pigs should be 4%.
Second, the use of green roughage to be diverse, and must pay attention to its quality is good or bad. Any kind of green roughage does not have a comprehensive nutritional value. If it is used in various ways, it can play a complementary role. It can increase the utilization of various amino acids in the feed, and at the same time reduce the cost of the feed and bring into play its best benefits. For example, if legume feed is used with grass feed, aquatic feed is used with cane powder or lotus root powder, and wild grass and wild peanuts are used together with peanuts. Do not mix straw powder with wolfberry and rice husk glycosides.
Third, pay attention to the processing and adjustment of green roughage. The green feed is preferably chopped, beaten and mixed with roughage. If the whole feeding alone is apt to cause waste, it will cause nitrite poisoning and even death if it is piled up for too long or cooked. The roughage is like cane, rattan, peanut, rattan, and champagne grass. Immediately after harvest, it should be dried in the sun, and its integrity should be kept as far as possible. It should be properly stored or directly silaged, or processed into dry powder and then taken out and mixed with the pig. Even feeding.
Fourth, maintain a balanced supply of green feed throughout the year. In general, the sources of static green feeds in the summer and autumn are wider, and the sources in the winter and spring are less. However, as long as planning is strengthened and blindness is overcome, a balanced supply can be achieved throughout the year. For example, Champagne grass and grain pods are planted at the beginning of summer; Ziyun ying, spring cabbage, winter cabbage, and yellow cabbage are grown in winter and spring; some green feed can also be dried, stored, or silted in the fall. Use it again in the off-season.
Explosive / Liquid Detector ,Liquid Detector ,Explosive Detector ,Liquid Detection Indicator
Shenzhen Unisec Technology Co.,ltd , https://www.uniqscansecurity.com