Supplementing fat to cows is an important means to increase milk fat percentage and milk quality, especially for high-yielding dairy cows or poorly milking cows. But the method of supplementing fat should be proper, otherwise it will be counterproductive.
The amount of fat fed to the appropriate dairy cow diet should not exceed 7% of dietary dry matter. Under normal circumstances, the basic dairy cow diet itself contains about 3% of fat, therefore, the amount of supplement is generally 3% to 4%. That is, one cow per day should be supplemented with 0.45kg to 1.36kg of fat. If the amount of fat in the diet exceeds 7%, it will reduce the activity of microorganisms in the rumen, affect the digestion of crude fiber, lead to lower appetite for dairy cows, reduce dry matter intake, and reduce milk production.
When the energy requirement exceeds the amount of fat that the rumen can afford, the coated fat particles are fed. This product can be digested in the small intestine through the rumen, which can meet the energy needs of dairy cows without reducing the digestibility of crude fiber in the rumen.
Accurately Calculating the Fat Addition Quantity The amount of fat that cows need depends on the amount of milk fat synthesis. If a dairy cow produces 36kg of fresh milk per day, the fat percentage is 3.5%, and the fat content in one day is 1.27kg, if the cow's normal body condition and continuous production level are to be maintained, 1.27kg of fat should be added to the diet.
Note that the effect of choosing fats from different sources and types of fat dairy cattle feed depends on the fat source and type. Therefore, do not use only one fat in production. For example, using soybeans alone as the only source of fat in the diet can cause excessive amounts of degradable protein in the rumen that will affect feed intake. Cottonseed poisoning occurs when cottonseeds are fed more than 3.6kg to 4.5kg per day, resulting in reduced visceral bleeding and reproductive performance. Therefore, different types of fat feeds should be selected based on price, availability, and dietary needs. Also note that the physical and chemical properties of different types of fat vary widely. Liquid fats are not suitable for the feed of lactating cattle because it will change the rumen's internal environment and affect the digestion of cellulose. Therefore, only by ensuring that the maximum fermentation activity in the rumen is relatively stable and the cellulose is digested, high yields of milk can be obtained.
Pay attention to the interaction between fat and roughage When adding fat, consider the type of roughage that makes up the diet. When silage corn is used as the main feed, only milk and sheep oil can be added to increase milk production. Wolfberry and cottonseed oil have a good synergy and can accelerate the digestion of cottonseed oil. This may be because calcium and fatty acids contained in indole form insoluble calcium soaps, making it easier for fatty acids to pass through the rumen.
Gradually increasing the amount of fat fed to the fat can avoid poor palatability. He began to feed 1/3 first, and fed the whole amount in three stages. It usually takes 3 weeks to 4 weeks. You can gradually add fat during the dry period. Compared with other feeds, cows are slower to eat fat. It is best to add fat to the entire mixed diet and mix well with other ingredients. This will ensure that the fat is evenly fed to the rumen by the cow and is easily digested and absorbed.
Pvc Panel For Pigs Separator for a variety of pig cages, made of high quality PVC plastic. PVC material determines it is durable, but also easy to clean and disinfect. PVC Panel For Pigs surface is very smooth, easy to clean, but also to avoid sow pig pig cage injury. PVC Panel For Pigs is hollow inside with ribs, this design helps to reduce the weight of the PVC Panel For Pigs while increasing the strength of the PVC Panel to carry larger weights of livestock. The size of our PVC Panel For Pigs is changeable. If you have special needs and orders are large, we can produce according to your requirements. We will provide you with the highest quality products and the most suitable price.
PVC Panel For Pigs
Pvc Panel For Pigs,Pig Farm Used Pvc Panel,Durable Pvc Panel,High Strength Pvc Panel
HuangHua FengYi Honde Metal Factory , https://www.farrowingcratesfromchina.com