The principle of tonifying Fat in Dairy cows

1. The amount of fat should be properly fed to dairy cows. The content of oil in the diet should not exceed 7% of the dietary dry matter at most. Under normal circumstances, the cow basal diet itself contains about 3% fat, so the supplement should be 3%-4%.

two。 To calculate the amount of oil added accurately, the amount of fat needed by dairy cows depends on the amount of milk fat. If a cow produces 36 kg of fresh milk per day and the milk fat rate is 3.5%, the daily milk fat yield is 1.26 kg. If the cow's normal body condition and continuous production level are maintained, 1.26 kg of fat should be added to the diet.

3. The effect of adding oil to dairy cow feed from different sources and types of oil depends on the source and type of oil, so don't use only one kind of oil in production. At the same time, liquid oil is not suitable to be added to the feed of lactating cattle.

4. Pay attention to the interaction between oil and roughage when adding oil, we should consider the types of roughage that make up the diet. When silage corn is used as the main forage, only by adding sheep and butter can the milk yield be increased. Using alfalfa as the main forage grass, cottonseed cake can be added to the feed.

5. Fat feeding should be gradually increased step by step to avoid the problem of poor palatability. At first, the animals were fed with 1max 3, which was fed to the full amount in three stages, which took 3 weeks and 4 weeks.