Recently, Wang Quan of Huai'an City called the newspaper “The Pastoral Doctor 110†to reflect that his family had a total of more than 50 ewes, because there were more dry straws in the area. He wanted to use these dry straws to raise sheep, but the dry straw sheep Do not like to eat. He asked how to increase the palatability of dry straw.
The reporter interviewed Ding Chenglong, a forage researcher at the Institute of Animal Husbandry, Jiangsu Academy of Agricultural Sciences. Ding Chenglong told the reporter that the nutritional value of dry straw is relatively low. Although goats are herbivores, the demand for cellulose is relatively high, but they are given separately. Sheep are fed with dry straw. Because of the palatability problems, the sheep eat less or do not eat basically. Therefore, the dry straw used in sheep production should be treated first.
"In the process of making goat granules, in order to keep the granules in the feed, we should generally add about 10% of the grass powder to the mash as a binder." Ding Chenglong said that using dry straw as grass powder was added to the pellet feed. During the middle season, the dry straw should be crushed into filaments to ensure that the grass powder has sufficient adhesion, and then granulation is added according to the formulation formula of the goat at different stages of the feed formulation.
Ding Chenglong said: “At present, some farmers use dry straw and sweet potato vines to make silage to sheep in a ratio of 1:1.†Because the moisture content of sweet potato vines is relatively high, silage tends to rot and is not easy to produce, such as When it is dried to a half dry state, silage is produced, and the nutrient loss is relatively large. When mixed with dry straw, the fresh sweet potato vine is cut into 5 to 10 cm and then mixed with a segment of dry straw to reduce the moisture in the silage material. Not only can improve the palatability of dry straw, but also improve its nutritional value. In addition, freshly harvested straw and sweet potato vines can be fed at a rate of 1 to 1 to increase the palatability of the straw and the feed intake of the goat.
“After fresh rice straw mixed with rice bran, it is also a convenient method to improve the palatability of rice straw after mixing with rice bran.†Ding Chenglong said that due to the low sugar content in rice straw, silage used alone to make silage is difficult to succeed. The addition of cornstarch, bran, rice bran and other soluble sugars with high content of the raw material in the rice straw to change the single material silage to a variety of mixed silage can increase the success rate of the raw material silage with low sugar content such as straw and wheat straw, and timely adjust the feed The moisture content of raw materials should generally reach about 60%.
Is it possible to feed sheep after ammoniating or alkalizing dried straw? Ding Chenglong said that the technology of alkalization and ammoniation of straw is not yet fully mature. The first time the farmer has alkalized and ammoniated the straw, it is prone to production accidents. Generally, it is not recommended to use such methods to treat straw feed.