Skillful use of Feed in Pig raising

It is diversified and reasonable to ensure that the nutrition is comprehensive in the three kinds of feed: green feed, coarse feed and concentrate feed, which is rich in moisture, large in volume, easy to digest, good palatability, and contains a variety of vitamins, minerals and proteins; the coarse feed is large in volume, high in crude fiber content and reasonable in combination, which can increase the contact surface between feed and digestive juice, and has a laxative effect, which is easy to make pigs feel full, but difficult to digest. Concentrate is characterized by small size, high nutritional value, easy to digest, but lack of minerals and vitamins.

? Pay attention to the relationship between dietary volume and pig feed intake to measure feed volume can be calculated by feed dry matter content. According to the calculation of daily feed dry matter 2.5kg ~ 4.5kg of 100kg body weight pigs, the dry matter of green feed, coarse feed and concentrate feed needs 5 ∶ 3 ∶ 2. For example, for a 150kg pregnant sow, if the daily feed dry matter is calculated as 5kg, 2.5kg dry matter comes from green feed (6kg of green feed can get 1kg dry matter), 1.5kg dry matter comes from coarse feed. 1 kilogram of dry matter comes from concentrate.

? The formula feed has good palatability and is easy to digest. If it contains high energy and protein and less crude fiber, it is palatable and easy to digest; on the contrary, if it contains low energy and protein and more crude fiber, it is poor in palatability and difficult to digest. When mixed with pig feed, it is advisable to use more green fodder and less roughage, and the mixed roughage requires good quality.