Accurately understanding the amount of feed fed is a guarantee of successful fish farming. It can not only make the fish eat well, but also does not cause feed wastage. It is not difficult to understand the timing, quality, and fixed points of the general mariculturists in the "quasi-determining" feeding, but the concept of quantitative is rather vague. Now, several methods for determining the amount of feed for pond fish farming have been introduced.
Method one: Calculate the annual feeding amount, the monthly feeding amount, and the daily feeding amount based on the fish net weight gain and the feed coefficient.
1, the amount of feeding. According to the fish net weight gain and the feed coefficient to calculate, that is, the net increase weight of fish stocking multiple feed coefficient. The net weight gain of fish is generally 4-5. The feed coefficient of the full-price compound feed is generally 2-2.5, and that of the mixed feed is 3-3.5. If the feed is used alternately, it is calculated by the respective feed coefficients respectively. The amount used, then added is the annual feed amount.
2, monthly feeding amount. The monthly feed allocation percentage for the current year. In general, 1% of the annual feeding amount will be fed in March, 4% of the annual feeding amount will be fed in April, 8% of the annual feeding amount will be fed in May, and 15% of the annual feeding amount will be added in June. 7 The monthly, August, and September months are all fed with 20% of the annual feeding amount. In October, 9% of the annual feeding amount is fed, and in November, 3% of the annual feeding amount is fed.
3, the amount of daily feeding. According to the monthly, monthly, and mid-term arrangements, the amount of monthly average amount of the monthly feeding amount is 80% from March to August, and the average amount is the daily average in the middle of the month and 120% of the daily average in the late period; From September onwards, the first half of the month is 120% of the daily average of the monthly feed amount, mid-day is the daily average, and the latter is 80% of the daily average.
Method Two: Determine the daily feeding amount with the number of Jun fish ponds. When the water temperature is 15°C-20°C, the daily feeding amount is 1%-3% of the fish body weight; when the water temperature is above 20°C, the daily feeding amount is 3%-5% of the fish body weight.
Method 3: Observe the feeding conditions of fish and determine the daily feeding amount. This method is easy to operate and simple. After the feed is fed, the fish is usually eaten for 2-3 hours. Or 80% of the fish eaten as a standard, this method can also be used in combination with method 2, that is, the method of calculating the amount of feeding the day, after feeding, according to the fish after eating time and the departure of the fish, discretionary increase Reduce to achieve the optimal amount of feed.
In addition to being mastered according to the above methods, uniform feeding is also required so as not to affect digestion, absorption and growth.
Method one: Calculate the annual feeding amount, the monthly feeding amount, and the daily feeding amount based on the fish net weight gain and the feed coefficient.
1, the amount of feeding. According to the fish net weight gain and the feed coefficient to calculate, that is, the net increase weight of fish stocking multiple feed coefficient. The net weight gain of fish is generally 4-5. The feed coefficient of the full-price compound feed is generally 2-2.5, and that of the mixed feed is 3-3.5. If the feed is used alternately, it is calculated by the respective feed coefficients respectively. The amount used, then added is the annual feed amount.
2, monthly feeding amount. The monthly feed allocation percentage for the current year. In general, 1% of the annual feeding amount will be fed in March, 4% of the annual feeding amount will be fed in April, 8% of the annual feeding amount will be fed in May, and 15% of the annual feeding amount will be added in June. 7 The monthly, August, and September months are all fed with 20% of the annual feeding amount. In October, 9% of the annual feeding amount is fed, and in November, 3% of the annual feeding amount is fed.
3, the amount of daily feeding. According to the monthly, monthly, and mid-term arrangements, the amount of monthly average amount of the monthly feeding amount is 80% from March to August, and the average amount is the daily average in the middle of the month and 120% of the daily average in the late period; From September onwards, the first half of the month is 120% of the daily average of the monthly feed amount, mid-day is the daily average, and the latter is 80% of the daily average.
Method Two: Determine the daily feeding amount with the number of Jun fish ponds. When the water temperature is 15°C-20°C, the daily feeding amount is 1%-3% of the fish body weight; when the water temperature is above 20°C, the daily feeding amount is 3%-5% of the fish body weight.
Method 3: Observe the feeding conditions of fish and determine the daily feeding amount. This method is easy to operate and simple. After the feed is fed, the fish is usually eaten for 2-3 hours. Or 80% of the fish eaten as a standard, this method can also be used in combination with method 2, that is, the method of calculating the amount of feeding the day, after feeding, according to the fish after eating time and the departure of the fish, discretionary increase Reduce to achieve the optimal amount of feed.
In addition to being mastered according to the above methods, uniform feeding is also required so as not to affect digestion, absorption and growth.
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