Fat intake should be appropriate. The content of fat in dairy diets should not exceed 7% of dry matter in the diet. The amount of supplement is generally 3-4%. Calculate the amount of fat added to be accurate. The amount of fat that cows need depends on the amount of buttermilk synthesis. If a dairy cow produces 36 kilograms of fresh milk per day, the milk fat rate is 3.5%, and the fat content in one day is 1.27 kilograms, if we want to maintain the cow's normal condition and continuous production level, 1.27 kilograms of fat should be added to the diet. Feeding fat should be gradual. Gradually increasing fat intake can avoid poor palatability. He began to feed 1/3 first, and fed the whole amount in 3 stages. It usually takes 3-4 weeks. You can gradually add fat during the dry period. It takes 3 days for cows to adapt to fat. Compared with other feeds, cows tend to eat fat at a slower rate. It is best to add fat to the fully mixed diet and mix thoroughly with the other ingredients. If this is not possible, feed as much fat and feed as possible.
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Feed different sources and types of fat. Do not use only one type of fat in production. For example, using soybean as the only fat in the diet can cause excessive amounts of degradable protein in the rumen, affecting feed intake. Gossypol poisoning occurs when cottonseeds are fed more than 3.6 kg or 4.5 kg on 1 day, resulting in reduced visceral bleeding and reproductive function. Liquid fats are not suitable for the feed of lactating cattle.
Pay attention to the interaction between fat and roughage. When adding fat, consider the type of roughage that makes up the diet. When corn silage is used as the main forage, only the addition of cow and sheep oil can increase milk production. Wolfberry and cottonseed have a good synergy and can accelerate the digestion of cottonseed.
Currently, the functions of smart cameras mainly include video monitoring, voice conversation, security alarm and video review