In the winter of Hebei Dingxing West White Goose Farm, a group of white geese compete for a kind of scented feed. In a sheep raising base six or seventy kilometers away from this place, because the sheep were fed this kind of feed, the smell and smell in the usual farm were hardly felt in the air, and the lamb produced here was more popular.
This is what I felt when I interviewed in the local area. The above two places are the demonstration bases of straw (grass) microbial multifunctional compound bacteria fermentation feed culture in Hebei Agricultural University.
Straw feed feeds two-way
"The straw is used for profit, and the abandonment is harmful." Zhu Baocheng, a professor at Hebei Agricultural University, has a deep understanding of this. The straw left after the annual harvest is burned on the spot, causing serious air pollution to all parts of the country, and it has been repeatedly banned. At the same time, the development of animal husbandry in China is subject to both food production and prices. "If we can process 1/3 of the country's straw into feed, we can save 50 million tons of feed grain, and it can greatly alleviate the problem of food and animal competition." Zhu Baocheng said.
It is understood that at present, in the composition of pig breeding costs in China, feed accounts for 60% to 70%, and the cost of breeding other ruminants is also roughly the same. Therefore, the development and utilization of optimized straw to raise livestock can greatly reduce the cost of breeding.
In addition, 80% of the mutton supply and more than 90% of the beef supply in China come from the agricultural area. Using effective methods to treat the abundant straw resources in the agricultural area can expand the source of high-quality feed for herbivorous livestock.
Not only straw, but also in the view of Li Yutang, director of the Grassland Industry Committee of the China Society of Systems Engineering, it is necessary to make full use of and develop huge straw resources. "In addition to agricultural products such as crop straw, peanut meal, melon and potato, etc., the branches and forestry on the forest and the grass and wild grass on the grassland add up to more than one billion tons. Therefore, if microbial agents are used The method of fermentation, making half of it into high-quality forage for aquaculture, will have a huge impact on the development of China's 'three rural' (grazing)."
Straw change feed
Li Yutang told the author that the fermentation optimization technology of straw multi-functional bacteria is different from the general straw ammoniation (addition of inorganic nitrogen such as urea). On the basis of this, the high-density special compound microbial agents are added to deepen the degradation of cellulose and lignin, transform inorganic nitrogen, and greatly increase the volatile fatty acid energy substances, various probiotics and digestive enzymes, so that the straw is converted into High-quality feed with high energy and 12% protein.
Li Yutang said: "The screening of this strain is very difficult, and it is extremely rare in foreign countries. Its factory production has laid the foundation for the next industrialization."
“This may be revolutionary.†Chen Gu, general manager of Bailu International Grass (Beijing) Co., Ltd., commented on the technology.
Chen Wenxin, an academician of the Chinese Academy of Sciences, believes that the technology has novel ideas and significant economic, social and ecological benefits.
needed state to support
However, this technology has not yet received the necessary support in the policy, nor has it been included in the technical promotion list. Apart from the support of the education department in the project, the Development and Reform Commission and the agricultural sector have not paid attention to it.
The Grassland Industry Committee of the China Society of Systems Engineering recently organized a comprehensive evaluation of feed and observation of straw multi-functional bacteria in Hebei Province, attracting the attention of many business people.
"Which needs, you can give fungi. Fermenting a few tons of straw feed, feeding for 1 month, you can know the effect." Zhu Baocheng's bagged bacteria prepared on the spot was robbed.
Xu Hongying, who was from Tianjin and previously sold in a foreign trade company, is very interested in this technology. In an interview with the author, she suggested: "This technology should be identified and promoted by the Ministry of Agriculture, and the corresponding mechanisms and methods should be accompanied by a planned organization."
Li Yutang believes that this technology must be scaled, organized, and strategically promoted from the national level. "This technology will increase grain and cultivate animal husbandry, and pollution can also increase farmers' income. If the pilot test and production application effect is really good, it must be supported by policy and scientific research, and it will be listed as one of the national key promotion measures. With the support of the government, this technology is difficult to develop, and the help provided by the academic community is always limited."
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