A micro-ecological preparation for improving milk yields of dairy cows
A microecological preparation and milk production technology, which is applied in the direction of medical preparations containing active ingredients, animal feed, diseases, etc., can solve the problems of microecological preparations, such as pertinence and low specificity, and achieve the maintenance of intestinal tract Micro-ecological balance, strong specificity, and the effect of improving nutrient utilization
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[0019] Example 1: Using culture-free technology combined with statistical methods to screen the dominant bacteria in the rumen of high milk-yielding dairy cows, use pure culture technology to obtain pure strains of dominant bacteria, and combine them into a microecological preparation through fermentation and culture compatibility; prepare according to the following steps :
[0020] (1) Sequencing: DNA from rumen juice of Holstein cows was extracted for PCR amplification, and the components of the microbial community in the rumen of cows were obtained by high-throughput sequencing and taxonomic analysis of the genome sequencer; the said genome sequencer expressed Miseq in English;
[0021] (2) Screening: The dominant bacteria in the rumen of high-producing dairy cows, namely Bacteroides and rumen cocci, were screened out through statistical analysis;
[0022] (3) Isolation and purification of bacterial species: extract the rumen fluid of dairy cows, cultivate rumen microorganisms by ...
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