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With the development of the aquaculture industry, the application of aquatic feed has become more and more extensive. The feeding machine has also played a very important role in the promotion of aquatic feed, and has played a good role in expressing the effect of aquatic feed. However, due to the simple structure of the bait feeder and the low processing conditions, manufacturers of bait feeders have sprung up, and the quality of various bait feeders varies from time to time, and many of the poor quality products are sold on the market. So it greatly affects the farmers' correct choice of feeding machines. So in practical applications, how can farmers make the correct choice of feeding machines in a targeted manner?
Let's take a look at several common bait feeders in the market. Now the bait feeders on the market are mainly divided into four types: 70W 90W 110W 120W, of which 90W and 110W are the majority. These two kinds of power can feed materials with a diameter of 2.5 mm, and the feeding area can reach about 100 square meters, which can feed 10-15 acres of pond fish. The 70W feeding area can reach about 70 square meters, which can be used for about 10 acres of fish ponds, and the 120W feeding area can reach about 130 square meters, which can be used for 15-20 acres of fish ponds. At present, although there are many bait feeders that meet the requirements, due to the poor manufacturing level, the bait area is often too small (biasing direction, spray angle can not reach 45 °, etc.), resulting in too small feeding area, affecting the feed Feed normally.
According to some experience of aerator manufacturers in the past few years, they should pay attention to the following aspects when choosing to use the bait feeder:
1. When buying bait feeders, the feeding area is our main consideration. However, we must know that the feeding area of the feeding machine is related to the diameter of the feed. Relatively speaking, the larger the diameter, the larger the feeding area. On the contrary, it is small, and it is also related to the capacity of the feed. The larger the relative capacity, the larger the feeding area, and the smaller the relative capacity, the smaller the feeding area. If the feeding area is too small, it will affect the normal growth of the fish. Therefore, we must consider the total amount of fish eaten in the pond at different times and the diameter and volume of the feed used at the time of selection. It is appropriate to choose a feeding machine with a large feeding area. In the case of polyculture ponds, if it is found that a certain fish-eating fish that has poor predation can grow more slowly, consider whether the feeding area of the feeding machine is too small.
Second, the total amount of fish-eating is related to the feeding area: As one of the purposes of the feeding machine is to increase the feeding area, the fish of different species and specifications in the polyculture pond can eat the feed, so that the Fish growth specifications are neat, but because the feeding area of the feeding machine is proportional to its power, such as when the power is constant, such as eating too much fish, when the feeding area is not large, the predatory ability in the polyculture pond is poor (small specifications ) Fish still ca n’t be caught, which affects their growth. Weak fish in single ponds ca n’t eat the fish, which causes a larger difference in specifications. on the contrary. If you eat a small amount of fish and feed a large area, you will cause feed waste.
3. Fish training with bait feeders: When food training is started in March, fish eating in the pond is generally less at this time. Because the bait feeders are relatively more filled at one time, for example, training with bait feeders is relatively manual. Difficult, anxious farmers will say that the fish does not float to eat, which is actually because the feeding machine feeds more and causes the fish not to rise to eat. Therefore, it is recommended that fish training in the early spring should be done manually after feeding. There are more fish in the pond, so you should consider using a feeding machine to train.
4. Several normal bait feeder configurations are recommended: Generally in the south of central China, when grass carp eats 500-2000 kg of fish, a 70W bait feeder is required. When 2500-7500 kg, A 90W caster is equipped with two (70W and 90W each) for 8000-10000kg. If you eat less than 500kg of fish, try to feed it manually.
Fifth, different stocking modes have different requirements for the feeding machine. For feeding machines with the same power, if the total amount of fish is eaten, monoculture can ensure the growth of fish, and then polyculture ponds cannot guarantee each type. Fish-eating fish can grow normally, so you should also choose the stocking mode when selecting the stocking machine. The power of single farming can be smaller, the feeding area is relatively small, and the power of polyculture is larger.