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Three-stage rapid fattening method for weaned hybrid pigs
Piglets that have been weaned and weigh approximately 15 kilograms can be raised using a three-stage feeding system, allowing them to reach a slaughter weight of 100 kilograms within about four months. This fast-growing method is introduced here for farmers looking to optimize their pig-rearing process.
**First, Feed Formulation**
Stage 1: (Feeding period: 40 days; target weight: 15–30 kg)
- Corn: 30%
- Bran: 15%
- Dried potato: 15%
- Cabbage: 8%
- Fish meal: 8%
- Salt: 0.5%
- Fine rice bran: 30%
Stage 2: (Feeding period: 40 days; target weight: 31–50 kg)
- Corn: 20%
- Bran: 10%
- Dried potato: 20%
- Vegetable cake: 10%
- Fish meal: 1%
- Bean cake: 4%
- Fine rice bran: 35%
Stage 3: (Feeding period: 30 days; target weight: 51–100 kg)
- Corn: 25%
- Bran: 15%
- Dried potato: 25%
- Cabbage cake: 5%
- Fish meal: 2%
- Salt: 1%
- Fine rice bran: 27%
**Second, Feeding and Management**
1. **Deworming and Pest Control**: Before placing the pigs in the pen, they should be dewormed. A solution of aphid extract can be rubbed on their ears to repel parasites. Alternatively, you can add 1 gram of trichlorfon per 10 kg of body weight into their feed. Every three days, mix 20 grams of baking soda with a small amount of feed and feed it to the pigs. After deworming, continue feeding them regularly to promote growth.
2. **Fermented Feed**: Mix appropriate amounts of copper sulfate, ferrous sulfate, and zinc sulfate in warm water and sprinkle them over the compound feed. Add enough water to make the mixture moist but not dripping. Place the mixture in a sealed container overnight for fermentation. The fermented feed develops a slight wine-like aroma, which improves the pigs’ appetite and enhances the nutritional value, leading to better feed utilization and faster growth.
3. **Scientific Feeding Schedule**: Feed the fermented feed raw, and offer it four times daily. The first feeding should be around 6:30 AM, followed by feedings every four hours—around 10:30 AM, 2:30 PM, and 9:30 PM. Adjust the quantity based on the pig’s weight gain. For pigs weighing 15–30 kg, feed 1.25 kg of compound feed per day. For those between 31–50 kg, increase to 1.25–1.50 kg per day. Once the pig reaches 50 kg or more, feed 1.75 kg daily. Always ensure clean water is available after each feeding. After four months, when the pigs reach 100 kg, they should be slaughtered promptly to maintain feeding efficiency and avoid unnecessary costs.