Pesticides are usually used as an effective tool to control pests in agriculture; however, these chemicals may be a threat nontarget organisms, especially aquatic because environments the last station of pollutants. The present study evaluated toxicity commercial formulation neonicotinoid (acetamiprid 20% SP) systematic pesticide on survival, hematology, and histology grass carp (Ctenopharyngod...

The growth hormone secretagogue-receptor (GHS-R) is an endogenous receptor for the gut hormone ghrelin. Here we report the identification and characterization of GHS-R1a in grass carp, Ctenopharyngodon idellus. The full-length GHS-R1a cDNA contained a 1803-bp coding domain sequence which encoded a peptide of 360 amino acid residues. Comparison analysis revealed that the amino acid sequences of ...

Diazinon (DZN) is a widely used pesticide that can affect the vital organs of non-target aquatic animals—mainly fish. This study evaluated acute toxicity (LC50) six DZN concentrations (0.5, 0.75, 1.5, 2, 2.5, and 3 mg·L−1) and, based on its evaluation after 24 h, 48 72 96 two sublethal for chronic testing (0.01 0.05 21 days exposure to grass carp fingerlings (Ctenopharyngodon idella Valencienne...

This study aimed to evaluate the impact of using insect-based fish feed on growth Ctenopharyngodon idella (grass carp). A meal in powder form was produced larvae blowflies. The mixture contained either 20% or 40% larvae, combined with conventional ingredients. fingerlings were divided into three groups and fed this formulated for 10 weeks, while ensuring that physio-chemical parameters within o...

Dietary intake affects the structure and function of microbes in host intestine. However, the succession of gut microbiota in response to changes in macronutrient levels during a long period of time remains insufficiently studied. Here, we determined the succession and metabolic products of intestinal microbiota in grass carp (Ctenopharyngodon idellus) undergoing an abrupt and extreme diet chan...