Method for accelerating feeding habit conversion of early fries of takifugu rubripes

Abstract

The invention relates to a method for accelerating feeding habit conversion of early fries of takifugu rubripes, and belongs to the technical field of marine fish culture. The method comprises the steps that from the fifteenth day or the sixteenth day after incubation, compound feed and biological bait are fed in turn, the feeding frequency of the compound feed is gradually increased, the feedingfrequency of the biological bait is gradually decreased, and only the compound feed is fed from the thirty-second day or the thirty-third day or the thirty-fourth day after incubation. According to the feeding rule of the early fries of the takifugu rubripes, a combined feeding mode is adopted, compound feed with different particle sizes is gradually used for replacing traditional biological baits, feeding habit conversion of the early fries of the takifugu rubripes is completed, the expenditure cost of the baits is reduced, and breeding operation is simplified, so that the production efficiency and economic benefits of industrial fry cultivation of takifugu rubripes are improved, meanwhile, emission of cultivation pollutants is reduced, and environmental protection is facilitated.

Description

technical field [0001] The invention relates to a method for accelerating feeding habits conversion of early seedlings of puffer puffer, and belongs to the technical field of seawater fish culture. Background technique [0002] In recent years, with the increasing expansion of the seawater fish farming industry, the demand for artificially propagated seed has also continued to rise. The early seedling stages of seawater fish include fertilized eggs, larvae and juveniles. Due to the small size of the individual, the artificial reproduction process is complicated. There are many influencing factors, which have become the key factors restricting large-scale artificial breeding of marine fish fry. At present, the early seedlings of artificial propagation mainly rely on biological bait, such as rotifers and artemia. However, the compound feed cannot completely replace the biological bait in the whole breeding stage, so the growth and survival of the early seedlings of marine fis...

AI Technical Summary

Problems solved by technology

Due to the insufficient research on its breeding theory, in the early seedling production process, there are still biological bait feeding time that cannot be scientifically controlled, and the strategy of switching between biological bait and compound feed is lack of in-depth analysis, resulting in the early seedling breeding process. , the amount of sewage is large, the water consumption for aquaculture has increased sharply, the process of purchasing, transporting, and feeding biological feed is cumbersome, it is difficult to reduce labor costs, and the cost of feeding is relatively high, which is not conducive to environmental protection and reducing enterprise costs

In addition, in the early stage of seedlings, it is difficult to carry out industrialized recirculating aquaculture due to the long-term feeding of biological bait