A pig weighing 200 kg can gain meat by eating 4 to 5 kg of feed a day. Fattening pigs can gain about 1.2- 1.6 kg of meat if they eat 5 kg of feed a day. Raising pigs is an agricultural production activity, which mainly achieves the function of eating by raising pigs. Pig industry is an important agricultural industry in China. After 200 kg, pigs can grow about 1.5 kg every day without getting sick. Compared with the daily consumption of pigs after 200 kg, this growth rate is slow, because after 180 kg, the feed absorption rate of pigs will decrease a lot, and the speed of weight gain will also decrease. Therefore, the fattening time of pigs should not be too long, otherwise the feed cost will increase and bring losses to farmers. After 200 kg, pigs can grow about 1.5 kg every day without getting sick. Compared with the daily consumption of pigs after 200 kg, this growth rate is slow, because after 180 kg, the feed absorption rate of pigs will decrease a lot, and the speed of weight gain will also decrease. Therefore, the fattening time of pigs should not be too long, otherwise the feed cost will increase and bring losses to farmers.

After the pig weighs 200 Jin, we can also feed it to the pig: fatten the Pacific Ocean, regulate the pig's intestines and stomach, improve the pig's absorption and utilization rate of feed, accelerate the growth of meat, and thus shorten the slaughter time.