First, it should be prepared according to the nutritional needs of pigs: the general farmers feed pigs mainly some protein substances and mineral substances (containing calcium and phosphorus salts and various trace elements), and the disease-resistant and growth-promoting agents are insufficient or not added; Secondly, it is reluctant to feed concentrate, or if the amount of feed is less, the growth of pigs will be slow, and naturally the golden period of pig growth will be missed, and the economic benefits will not be good.
Second, raw materials: when choosing raw materials, it should be noted that pigs should not only love to eat, but also be nutritious, and at the same time, they should be able to prepare ingredients that meet the standards. In addition, we should pay attention to the diversity of raw materials. If it doesn't taste good, you can add seasoning.
Third, supplement trace elements: As for trace elements, it is suggested to supplement some iodine, selenium, copper, iron, zinc and manganese. Based on the pig weighing 50 ~ 100 kg, 4.36 mg of copper, 0.014 mg of iodine, 0.26 mg of selenium, 60 mg of iron, 0/10 mg of zinc and 2. 18 mg of manganese should be added to each kg batch.
Fourth, the preparation should be reasonable: in addition to powdery raw materials such as bran, fish meal, dregs and bone meal, raw materials such as beans, corn and rice should be crushed. In addition, raw soybeans cannot be directly given to pigs. They must be cooked or fried before they can be eaten by pigs.
Fifth, the feed is diverse and reasonable: We often mentioned green feed in previous articles, because green feed is an indispensable part of pig feed formula. Green feed is characterized by high water content, good palatability and easy digestion, and contains various vitamins, minerals and protein. Therefore, when preparing pig feed, it is necessary to reasonably mix green, coarse and fine feed to meet the nutritional needs of pig growth.
According to the above principles, here are two kinds of self-made pig feed formulas:
1.20-60kg pig feed formula: wheat bran 15%, calcium hydrogen phosphate 1.5%, high-quality fish meal 2%, stone meal 0.23%, corn 53%, soybean meal 16% and fine rice bran/kloc-0.
2.60-90kg pig feed formula: fish meal 1%, soybean meal 12%, calcium hydrogen phosphate 1%, rice 9%, stone powder 0.4%, corn 54%, wheat bran 20%, salt 0.24% and additive 2.36%.