Under normal feeding conditions, the cost of cow feed accounts for more than 60% of the production cost of fresh milk. Therefore, the reasonableness of the diet combination is not only related to the performance and health of dairy cows, the use of feed resources, but also directly affects the economic benefits of dairy cows. The factors that affect the dietary mix of cows are: cow weight, milk production, milk composition (fat fat, milk protein percentage), the lactation stage of the milk, and the parity of the cow. The following factors can affect the utilization of nutritionally balanced diets by dairy cows: 1 palatability of the diet; 2 feeding times per day; 3 feeding methods; (such as complete mixed feeding method, computer controlled concentrate feeding method and first Rough feeding after feeding, etc.); 4 feeding methods; (single feeding or group feeding).
The basic principles of dairy cow diet coordination: 1 Based on feeding standards, and make necessary adjustments for specific conditions (such as ambient temperature, feeding method, feed quality, processing conditions, etc.). 2 Make full use of local feed resources and mix feed reasonably. For example, malt root and corn germ cake can be used to reduce feed cost and save concentrate. 3 Pay attention to the overall balance of nutrition, and adjust the proportion of relevant raw materials in the feed formula according to the feed quality price or season, feeding method. In addition, it is necessary to select raw materials with appropriate volume and good palatability.
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