First, rare earth: In the feed of fish such as oysters and clams, adding 80 to 100 grams per kilogram can increase the daily weight gain of the fish by 10% to 15%, and can enhance the disease resistance. Second, betaine: Add 1.5 ~ 2.5% of betaine, as a temptation agent, can attract fish to swallow, to avoid feed sink into the bottom of the pool causing waste. Third, fats and oils: The addition of 6 to 8% of animal or vegetable fats can increase the growth rate of fry by 20% and the mortality rate is greatly reduced. 4. Magnesium Acetate: Adding 0.5 grams per kilogram of fish feed can increase the growth rate of the fish and increase the daily gain by 2%, which is more than 30% higher than that of the fish that is not fed with magnesium acetate. 5. Borax: In the feed for carp and grass carp, adding 2 grams of borax (Chinese medicine) per 100 kilograms can increase the yield by 20%, save 25% of the feed, and prevent fish diseases. Sixth, wolfberry: Add tilapia instead of fishmeal in tilapia diet, and replace part of the diet with worm feces, from the launch of the fish to the catch, comparable to add fishmeal to reduce costs by 40%, increase production by 35%. VII. Vitamin C: Adding 60g of vitamin C per kilogram of carp feed can increase the daily weight of fish by 50% and save 29% of feed. Add 700mg of vitamin C per carp of carp feed to catfish per kilogram of feed. 500mg vitamin C, the effect is also very significant. 8. Vitamin E: Vitamin E is added to the tilapia feed so that the content of vitamin E per kilogram of feed reaches 40 to 70 milligrams, which can increase the daily weight of the fish by more than 10% and the feed conversion rate by 8%.
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