How should you properly start ducklings on feed and feed them?

After the ducklings hatch, 12 to 24 hours later, they can be fed for the first time. Before feeding, first give the ducklings water with potassium permanganate at a ratio of 1 part per 10,000, to replenish the moisture they have lost and to disinfect the digestive tract. Then feed them rice that is 80 percent cooked and has been rinsed with cooled boiled water. After feeding rice for 2 days, feed them duckling feed for 15 days. Then feed them a self-mixed powdered feed. Its formula is 60% cornmeal, 5% wheat bran, 4% rice bran, 20% soybean meal, 6% low-salt fish meal, 1% bone meal, 3% shell powder, 1% gypsum powder. Feeding method: 5 to 6 times a day. Feed the last time at 9 to 10 p.m. The feed should be mixed with water until moist and fed. After 5 days of age, green feed can be added as appropriate.