Ingenious identification of fish satiety

First, pay attention to the length of time for fish to eat on the table or in the food market. If after putting in a certain amount of feed (normal feeding amount), the time for the fish to finish the feed is less than 2 hours, it means that the feed is insufficient, and some fish are not eaten or full, so it should be added appropriately. If the amount of feed per ten days is constant, the daily amount of feed is the same within ten days, but the feed is eaten by the fish in less than 2 hours at the end of the decade, indicating that the fish has gained weight and the amount of feed should be increased. When fed with pellet feed, the feed has been finished, and the fish are still swimming for food on the surface of the water and are unwilling to sink into the "second layer of water", indicating that the fish are not full. If the fish have dispersed from the food table and food market, and there is still leftover bait, the fish will have more than enough to eat, and the dosage can be reduced next time.

Second, the water surface is extremely restless, and the fish in the pond are active frequently. Check whether the fish are harmed by parasites, or the fish may be in a state of hunger. In the breeding pond, fry and fry swim crazily around the pond in groups, which is a sign of a lack of palatable bait and a sign of serious hunger, commonly known as "horse racing disease".

3. Check the growth of the fish regularly, usually once a month. Under the condition that the stocking density is appropriate, the proportion is reasonable, and there is no disease, it is found that the growth of fish is far from reaching the predetermined specifications, and there is a great difference in individual size, indicating that the fish are not fed enough and are often in a state of hunger or semi-hunger.

4. In ponds with silver carp and bighead carp as the main culture fish, the transparency of the water is more than 40 cm, or the water quality changes from fat to thin, or silver carp and bighead carp have large heads, small tails, narrow backs, weak swimming, and even thin and dead individuals floating on the surface. all these show that there are very few edible plankton of silver carp and bighead carp in the water, resulting in the slow growth of these fish.

Fifth, in ponds with carp as the main culture of fish, the hunger and satiety of carp can be determined according to the turbidity of the pond water. If the water of the whole pond is muddy (muddy yellow), it is proved that the carp foraging at the bottom of the pond is frequent, and the carp can be judged to be hungry.