When raising grass carp , it is essential to feed them scientifically. Generally, 1,000 catties of grass carp require 400-600 catties of feed per day. The daily amount of feed is greatly affected by factors such as temperature. Farmers can determine the amount of feed based on the growth of the grass carp.
How much feed does a 1000-jin (500 catties) grass carp need per day?
A 1000-jin (500 catties) grass carp needs 400-600 jin (200-300 catties) of feed per day. When each grass carp weighs 1 jin (0.5 catties), a 1000-jin grass carp will need to eat 400-600 jin of feed per day. The actual amount of feed consumed depends on the specific size of the grass carp. Generally, grass carp consume 40-60% of their body weight in feed daily. When the pond water is warmer, the amount of feed can be increased appropriately; when the pond water is cooler, the amount of feed should be reduced appropriately.
When the water temperature is between 18-20℃, the daily feeding amount should be 1%-1.5% of the fish's body weight; when the water temperature is between 22-26℃, the daily feeding amount should be 2%-3% of the fish's body weight; when the water temperature is between 26-32℃, the daily feeding amount should be 3%-5% of the fish's body weight; and when the water temperature is above 32℃, the daily feeding amount should be 2%-2.5% of the fish's body weight.
Grass carp feed formulation
1. The feed consists of 50% rice straw, 25% rice bran, and 25% soybean cake. For every 100 kg of the above mixture, 10 kg of flour by-products are added as a binder. The crude protein content of the feed is 23.35%, the feed conversion ratio is 2.8, and the feeding size is about 0.05 kg per fish.
2. The feed consists of 50% rice straw, 22.5% rice bran, 5% wheat bran, 15% soybean meal, 5% fish meal, 1% bone meal, 0.5% salt, and 1% vitamin additives. The crude protein content of the feed is 18.78%, and the feed conversion ratio is 2.4.
3. The feed conversion ratio is 1.9. If green fodder is added, the feed conversion ratio becomes 2.2 .
4. The basic feed consists of 30% wheat flour, 10% fish meal, 15% soybean meal, 25% wheat bran, and 20% rice bran. Under the premise that the total amount of basic feed remains unchanged, you can add 12% sweet potato flour, 0.5% salt, 2% growth promoter, and 2% dicalcium phosphate according to the actual situation. The feed conversion ratio is 4.8.
