Finishing pigs have certain regularity in their growth and development. Piglets have long bones, middle pigs have long meats, and pigs have long pigs. This law should be fully utilized in the feeding of pigs, and sufficient feeding should be carried out in the early and middle stages to increase the feed concentration, and feeds should be appropriately limited in the later period.
First, the use of the former reminder after the control of feeding methods
The growth and fattening period of commercial pigs (before 60 kg of body weight) was mainly muscle growth, and fat deposition gradually followed. Tests have shown that pigs grow lean meat to save feed compared to growing fat. Therefore, in the feeding method, the characteristics of the main growing lean meat in the early stage of the pig development should be well utilized, and the method of using the former reminder and control can be used to increase the lean meat ratio. Before 60 kg body weight, you can feed dry powder, pellets, or wet mixes, without limit, so that pigs can freely feed and provide enough clean drinking water; after weighing 60 kg, they should be fed regularly, quantitatively, qualitatively, and at a constant temperature. , unlimited drinking water until slaughter.
Second, the supply of nutritionally complete feed
1. Protein requirements for different stages of growth and development: For pigs weighing 1 to 5 kg, the diet should contain 27% crude protein, 6 to 10 kg 22%, 11 to 20 kg 19%, and 21 to 35 kg 16 %, 36 to 60 kg is 15%, and 61 to 90 kg is 14%.
2. Feeding quantity per day for growing and finishing pigs: The feeding amount of commercial hogs is generally supplied at about 5% of body weight per head and 2.3 to 3 kg for medium-sized pigs, which cannot exceed 3.5 kg. Feed 4 to 3 meals a day and feed only 8 to 90% of full meals per meal.
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