CATDOLL : CATDOLL: How to determine the amount of feed to be added to the fish pond?

How to determine the amount of feed to be added to a fish pond?

1. Calculate the annual, monthly and daily feeding amounts based on the net weight gain of fish and the feed coefficient.

1. The annual feeding amount is calculated based on the net weight gain of fish and the feed coefficient, that is, the stocking amount of fish × net weight gain × feed coefficient. The net weight gain of fish is generally 4 to 5 times, the feed coefficient of complete feed is generally 2 to 2.5 times, and that of mixed feed is 3 to 3.5 times. If several feeds are used alternately, the usage is calculated according to their respective feed coefficients, and then the sum is the annual feeding amount.

2. Monthly feeding amount is the annual feeding amount x the feed distribution percentage of the month. Generally, 1% of the annual feeding amount is fed in March, 4% of the annual feeding amount is fed in April, 8% of the annual feeding amount is fed in May, 15% of the annual feeding amount is fed in June, 20% of the annual feeding amount is fed in July, August and September, 9% of the annual feeding amount is fed in October, and 3% of the annual feeding amount is fed in November.

3. The daily feeding amount is divided into the first, middle and last ten days according to the monthly feeding amount. From March to August, the daily feeding amount in the first ten days is 80% of the daily average of the monthly feeding amount, the middle ten days is the daily average, and the last ten days is 120% of the daily average. From September onwards, the first ten days is 120% of the daily average of the monthly feeding amount, the middle ten days is the daily average, and the last ten days is 80% of the daily average.

2. Determine the daily feeding amount based on the number of fish in the pond.

When the water temperature is between 15℃ and 20℃, the daily feeding amount is 1% to 3% of the fish body weight. When the water temperature is above 20℃, the daily feeding amount is 3% to 5% of the fish body weight.

3. Observe the fish's feeding habits and determine the daily feeding amount.

This method is easy to operate and simple. After feeding, it is generally considered that the fish will finish eating in 2 to 3 hours or 80% of the fish will swim away after eating. This method can also be used in combination with method 2, that is, the daily feeding amount is calculated by method 2. After feeding, the amount of feeding can be increased or decreased as appropriate according to the time when the fish finish eating and the situation of the fish leaving, so as to achieve the most suitable feeding amount. In addition to mastering the above method, it is also necessary to feed evenly, and it is not advisable to feed too much or too little, so as to avoid the fish being full and hungry at times, affecting digestion, absorption and growth, and also easily causing fish diseases. Even feeding can also improve the utilization rate of feed and reduce the feed coefficient. It is best to calculate the daily feeding rate table according to the growth of the fish and the water temperature, and then determine the specific amount of feeding per day according to the weather and water temperature. In addition, it is necessary to feed flexibly according to your own breeding mode, breeding level, water quality conditions, etc., so as to maximize the benefits of feed.