Evaluation of the control effect of bighead carp and silver carp on cyanobacterial blooms based on the analysis of differences in algal digestion processes

Wang, Zhicong; Wang, Qidong; Wang, Jinglong; Wei, Hui; Jiang, Qian; Zhang, Yinzhe; Feng, Kai; Chen, Qinyi; Yuan, Jing; Liu, Jiashou; Li, Dunhai

doi:10.1016/j.jclepro.2022.134106

Cited by 12 publications

(1 citation statement)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Silver carp (Hypophthalmichthys molitrix) is the main freshwater aquaculture fish in China and is referred to as one of the four major Chinese carps, together with black carp (Mylopharyngodon piceus), grass carp, and bighead carp (Aristichthys nobilis) [13]. As algaefeeding fish, the silver carp is often stocked in natural lakes in China and Southeast Asia as algae control fishes [14]. Due to its low cost and eco-friendliness, silver carp is a major freshwater aquaculture target in China [13], with Chinese silver carp accounting for 12.05% of total freshwater aquaculture production in 2021 [15].…”

Section: Introductionmentioning

confidence: 99%

Improvement of Flesh Quality of Farmed Silver Carp (Hypophthalmichthys molitrix) by Short-Term Stocked in Natural Water

Miao

Guo

Song

et al. 2023

Fishes

View full text Add to dashboard Cite

To investigate the effects of different raising environments on the flesh quality, the study set up three groups of silver carp (Hypophthalmichthys molitrix), that is, pond-farmed; short-term stocked; and ranched, grown in a natural water ranch. This study compared the differences in muscle proximate composition and amino acid composition among three groups. The results showed that there was no difference between the ranched and the stocked groups in content of crude protein, ash, total amino acids (TAA), essential amino acids (EAA), and umami-flavored amino acids (UAA), with both groups being significantly higher than the farmed group. This shows that, in terms of flesh quality, the stocked group was closer to the ranched group and better than the farmed group after being stocked in natural water for 30 days. The results suggest that the flesh quality of farmed fish was improved by short-term stocking in natural water. To elucidate the reasons of flesh quality change in the stocked group, this study compared the food composition and intestinal digestive enzyme activity in three groups, demonstrating that the ranched and stocked groups had similar food composition, with their detritus proportion lower than that of the farmed group, consuming easily digestible phytoplankton diatoms rich in amino acids and fatty acids. No significant difference was seen between the ranched group and the stocked group, for which amylase, lipase, and trypsin activities were lower than that of the farmed group. It is hypothesized that differences in environmental and food composition resulted in lower digestive enzyme activity in the ranched group and the stocked group. In summary, the short-term stocking of farmed fish in a natural water ranch can effectively improve the nutrient content, quality and flavor, and promote value of fish products.

show abstract

Section: Introductionmentioning

confidence: 99%