Pond breeding feeding technology

In addition to the basic principles of "Four Dedications", the pond culture and feeding should be based on the breeding object, the water environment, the breeding target, etc., and choose suitable feed and feeding methods.

First, according to the dissolved oxygen in water control feeding. Dissolved oxygen in water is the most important environmental impact factor of fish. How much of it directly affects the fish feeding and the digestion and absorption of food by fish. When the water is rich in dissolved oxygen (above 5 mg/l), the fish have a strong feeding capacity. The rate of digestion and absorption is high. At this time, more food should be fed to meet the physiological and nutritional needs of fish. In the case of rain, high-temperature weather and high-density farming, the pond is deprived of oxygen, especially when there is a floating head phenomenon, pay attention to reducing feeding or not feeding, so as to avoid feed waste and water pollution.

Second, adjust the bait rate according to the water temperature. The so-called bait rate is the ratio of the daily feed amount to the pond fish weight, and the bait rate is related to the water temperature, fish species, individual size, etc., and especially should be adjusted as the water temperature changes and quarterly changes. In the case of squid, when the water temperature reaches 15°C, the squid starts feeding, and the feed rate is 0.5-1%. When the water temperature reaches 18-22°C, the feed rate should rise to 1-2%; when the water temperature is 22 At -30°C, the feed rate should be increased to 2-3.5%. In addition to changes in water temperature, the bait rate needs to be adjusted according to actual conditions at that time, such as weather and fish diseases.

Third, determine the frequency of feeding. The feeding frequency is the number of feedings per day, which is generally determined by factors such as the species and size of the fish. The number of feedings at the fry stage is higher than that of the adult stage. The number of feedings of the non-stomach fish is higher than that of the stomach fish, and the feeding frequency is higher in the hot season. In the cold season. In actual production, if the number of feedings is too small, fish are in a state of starvation, and nutrition cannot be supplemented in time, which will affect its growth. If the frequency of feeding is too fast, the digestion and absorption rate of food in the intestine will be reduced, which will result in the waste of food and pollute the water quality.

Fourth, feeding speed control. Feeding the bait is generally slower at the two ends, and the intermediate speed is better. The first slow is to draw the fish over, and then the feeding speed is accelerated, and then the feeding speed is slowed down later to avoid the bait falling into the bottom of the water and causing waste. When domesticating and feeding, one should first slow down and then fast, first less and later, first focus on the point, then expand to the surface. The feeding time is adjusted with the amount of fish in the pond. The storage pond has a large amount and the feeding time is relatively longer. In addition, different types of fish, there are differences in eating speed, such as: grass carp eat faster than carp, and carp is faster than carp, carp.

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