In order to guide students to extend what they learn in the classroom and laboratory beyond books，Serve the society with the knowledge learned，Let students improve their professional abilities and their professional pride in learning and loving farmers during the practice process，The teachers and students of the School of Animal Science and Technology serve the rural revitalization plan "i Data Intelligence, i Cows, i Future" practice team went to Beijing Dingsheng Yujiu Animal Husbandry Co., Ltd. (one field) located in Lianghe Village, Henanzhai Town, Miyun District, Beijing during the summer ) Carry out social practice。
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In recent years，The yield of dairy cows in Beijing has increased steadily，But subject to resource environment、Policy、Influence of cost and other factors，The number of dairy farms continues to decrease。Beijing area formed the Shunyi Group、Tongzhou、The dairy industry belt in southern Beijing, dominated by Daxing and Fangshan districts (counties) and Yanqing、The dairy industry belt in northern Beijing, dominated by districts (counties) such as Miyun and Huairou，Ensuring the quality, safety and stable supply of milk in Beijing。The destination of this event is Beijing Dingsheng Yujiu Animal Husbandry bet365 best casino gamesCo., Ltd. (one event)，The field was built in 2004，An area of about 230 acres，About 2,000 heads in stock，Daily milk production is about 26 tons。Since 2005，Persist in doing cattle improvement plan (DHI) testing every month，But cannot effectively utilize DHI data，Currently there is low milk production in the pasture、The problem of high incidence of mastitis。
The "iMathematics Intelligence ICow iFuture" summer social practice group led by Professor Guo Kaijun of Beijing Agricultural College was selected into the 2022 "Rural Revitalization" Action Plan for Teacher and Student Services in Capital Universities，The practice group prepared a detailed survey before departure、Visit、Service and Promotion Plan，Especially to understand some of the current problems that need to be solved in the pasture，Fully prepared for this social practice activity of rural revitalization。
“I hope that through social practice, students can get in touch with the front line of production，I also hope to pass on-site inspections and visits to the ranch，Use our expertise，Provide some rational suggestions for the ranch。" Team leader Guo Kaijun said。
Fine research UnderstandPastureAdvantages and Disadvantages
After the ranch，Students learned，The ranch has 1946 cows，938 lactating cows，In order to meet environmental protection requirements，The pasture transferred 800 acres of land for manure disposal and planting feed crops。
All members of the practice group put on protective clothing and entered the pasture to visit the dairy pens、Feed workshop、Manure treatment workshop、Milking shed, etc.。There are basically no mosquitoes or flies in the venue，Can’t smell bet365 online sports betting liveshit。Director Wang introduced: “The pasture uses dry and wet separation technology to process manure，The separated solid can be used as livestock bed after fermentation、Sports Ground Mat，Eco-friendly and comfortable，The liquid part can be used as fertilizer for surrounding farmland，Fully realized the utilization of manure resources。”The dairy farm has solved some farmers’ employment problems，Provide organic fertilizer to farmers。Currently according to Beijing city policy，The ranch has also made adjustments to the cow sports ground，Reduced environmental pollution and carbon dioxide emissions。
While understanding the advantages of ranching，The practice group also found shortcomings。Some old methods are still followed in pasture management，For example, the grouping of cattle is unreasonable，There is no reasonable grouping according to the three milk production levels of low, medium and high，As a result, low-yielding cows are overweight、Problems such as wasting feed and increasing costs。
"By close contact，We gained an in-depth understanding of the advantages and disadvantages of ranching。" said a classmate from the practice group，“Especially the methods of dry and wet separation of manure and fermentation of solid manure are impressive。”
Precise policy implementation Helping ranches improve efficiency
Combined with the understanding of the ranch before this event，The practice team provided feedback to the ranch on the problems discovered during the on-site survey。
In order to achieve precise service，Members of the practice group communicated with the ranch data clerk for many times，Get cattle information、DHI detection data、Cow breeding events bet365 live casino reviewino blackjackand other information，By collection、Analyze DHI data to help ranches solve their own problems，Improve economic benefits。Based on the current status of pasture feed ingredients and rations，Proposed a reasonable diet formula，Recommended precise feeding for different groups of cows。
The practice group also used the dairy farm intelligent management system developed by the team，Analyze the production performance of dairy cows on this farm，Generate analysis report。Share analysis results with ranch technicians，Point out the lack of pasture，Provide opinions for ranch development。In addition, by establishing a mastitis prediction model，Early warning of cows with high risk of mastitis in dairy cows，Discover early、Prevent and treat as early as possible，Improving milk quality and safety。
Students from the practice group said: “Go into the front line of dairy production，Understand the difficulties of ranching，Under the guidance of the teacher，Help the ranch solve practical problems，Very sense of accomplishment。I will learn professional knowledge solidly in the future，Make your own contribution to promoting the healthy and sustainable development of Beijing’s dairy industry。”
