How to improve the growth rate of fish

Artemisia argyi (Artemisia argyi) is a widely distributed plant, which contains protein, fat, vitamins and various essential amino acids and minerals. According to the experiment, adding 5% moxa leaves to the feed can increase the weight gain rate of 1-year-old carp in the pond by 15.4%-22.4%, silver carp and bighead carp cultured in the same pond also increase significantly, and the weight gain rate of 1-year-old carp cultured in cage can be increased by 14.5%.

Earthworms contain 50.4%-65.8% crude protein, a wide range of amino acids, especially restricted amino acids, and are rich in vitamins. Because earthworm meat has a special smell, which is easy to induce and stimulate the appetite of fish, adding 5% earthworms to the formula feed can significantly reduce the feed coefficient of tilapia and increase the economic benefit by 74.5%. The growth rate of carp can be increased by 63% by adding 7.14% to 10% dry earthworms in formula feed.

Add vitamin C: when raising carp, 700 mg vitamin C is added to each kilogram of feed, and when raising eel, 500 mg vitamin C is added to each kilogram feed. Adding 60 grams of vitamin C per kilogram of catfish feed can increase its daily gain by 50% and save feed by 29%. Vitamin E: when vitamin E is added to fish feed, the content of vitamin E in each kilogram of feed is 40mg to 70mg, which can increase the daily gain of fish by more than 10%.

The addition of photosynthetic bacteria as a feed additive for fish, shrimp, turnips and shellfish can increase the survival rate of these animals by 45% to 70%. Used for the seedling cultivation of freshwater fish, the survival rate, growth rate, weight gain rate and feed coefficient were increased by 6.53%, 15.2%, 25.2% and 25.96%, respectively. Usage: first, add it to the feed. Spray the propagated photosynthetic bacteria liquid into the feed and mix it well. The amount of the bacterial liquid is 1% of the feed amount, and it is now used. Second, water spraying. Spraying photosynthetic bacteria in water can improve water quality, control fish diseases and cultivate excellent algae. On a sunny day, the liquid of photosynthetic bacteria was diluted with pool water and sprinkled evenly in the whole pond. The solution of photosynthetic bacteria was 5ml per cubic meter of water, and the number of photosynthetic bacteria per milliliter was 1 billion ~ 1.5 billion. The times of applying photosynthetic bacteria are determined according to the water quality, the good water quality can be applied every 15 days, and the poor water quality, especially in the high-yield ponds in the later stage of culture, should be applied every 7-10 days. The liquid of photosynthetic bacteria should be used as soon as possible, stored at room temperature for no more than 2 weeks, and metal containers are forbidden to be used.