Research progress on aquaculture and feeding regulation mechanism of Mandarin fish

Mandarin fish (Siniperca sp.) is a valuable freshwater economic fish in China, and its production has approached 330000 tons in 2019. This paper introduced aquaculture situation of Siniperca sp. from three aspects, including aquaculture status, aquaculture mode and selective breeding. The feeding habit of Siniperca sp. is unique, which relies on prey fish for lifetime. For many years, prey fish are mainly used to feed Siniperca sp., and the way of raising fish by fish not only causes the waste of fishery resources, but also aggravates the damage to environment and resources. Thus, the paper also summarized the external factors affecting feeding characteristics of Siniperca sp. species from environmental factors and feed properties, and analyzed the internal factors from the aspects of feeding sense organs and feeding regulation factors. This may be helpful to adjust the feeding habits of Siniperca sp. through artificial intervention, and provide necessary basis for its conversion to eat formula feed. Additionally, it is necessary to strengthen the research on the feeding regulation mechanism and nutritional physiological demand characteristics, so as to achieve the breakthrough of compound feed and promote the green and healthy development of its aquaculture industry.