The method of raising pigs after pre-optimal feeding

In the early stage of growth and development (before 60kg), fattening pigs are mainly growing skin, bone and meat, with weak fat deposition ability, but high growth intensity and less feed consumption per unit weight gain. Meet the requirements of protein, minerals and vitamins, and feed the formula feed suitable for the nutritional needs of pigs. The formula is as follows: 1. 10-30 kg fattening pig feed formula (%): corn 31, wheat bran 38, soybean 4, rapeseed cake 8, fish meal 7, bran 10, calcium hydrogen phosphate 1, calcium carbonate 0.5, salt 0.5. 2. 30kg finishing pig feed formula (%): corn 27, wheat bran 28, soybean 3, broken rice 7, rapeseed cake 8, fish meal 5, rice bran 15, oil bran 5, calcium hydrogen phosphate 1, calcium carbonate 0.5, salt 0.5. In the feeding mode, it should be allowed to eat freely and in unlimited quantity, so as to give full play to its production potential and lay the foundation for late-term fattening. It plays a decisive role in improving the carcass and lean percentage of pigs by adopting this fattening method with high nutrition before and after low nutrition and open front and rear limit. After 60 kg, feed restriction is appropriate to reduce the fat deposition rate, and the later feed restriction is generally 15% to 20% of the free feed intake. There are three methods: first, to reduce the energy concentration of feed, but to eat freely; second, to limit the amount of feed, not to eat completely, until 80% to 90% full; third, to increase the proportion of green and roughage and appropriately reduce concentrate, which can not only meet the requirements of feed restriction, but also meet the nutritional needs of pigs, but the content of crude fiber can not exceed 10% in the later stage and no more than 6% in the early stage. The formula is as follows: 3,60,90kg finishing pig feed formula (%): corn 32, wheat bran 28, soybean 3, broken rice 5, rapeseed cake 8, fish meal 3, bran 15, oil bran 5, calcium hydrogen phosphate 0.5, calcium carbonate 0.5. -- Thank you for sharing.