![]() A core gut microbiota of 29 bacterial groups, covering >99.9% of the total bacterial community, was found to be dominated by Proteobacteria and Firmicutes in fish fed three different diets with/without the supplementation of Ulva pertusa (U. canaliculatus) by using three molecular ecology techniques based on the 16S rRNA genes (denaturing gradient gel electrophoresis, clone library construction, and high-throughput Illumina sequencing), and the Illumina sequencing technique is suggested here due to its higher overall coverage of the total 16S rRNA genes. In this study, we provided the first insight into the gut microbiota of the herbivorous fish Siganus canaliculatus (S. Zhang, Xinxu Wu, Huijuan Li, Zhongzhen Li, Yuanyou Wang, Shuqi Zhu, Dashi Wen, Xiaobo Li, Shengkangįishes represent the highest diversity of vertebrates however, our understanding of the compositions and functions of their gut microbiota is limited. canaliculatus for tested macroalgae.Įffects of dietary supplementation of Ulva pertusa and non-starch polysaccharide enzymes on gut microbiota of Siganus canaliculatus Accordingly, the richness of nutrients and morphological characteristics determined the preference of S. In addition, this fish was found to favor filamentous and flat algae rather than calcified ones. The preferred seaweeds were richer in protein and soluble sugar thus higher in energy than the least preferred. Such an order did not change when one to four relatively preferred seaweeds were removed. pertusa and Porphyra haitanensis, and least preferred ones were Sargassum fusiforme and Corallina sessilis. It was found that the most preferred algae were Ulva prolifera, Gracilaria lemaneiformis and Chaetomorpha linum, less preferred algae were U. Seven seaweed species abundantly inhabiting the coast of east Guangdong Province were exposed simultaneously to rabbitfish juveniles in laboratory (multiple-choice feeding) with their content and absolute intake assayed. In order to pave a way of using macroalgae as the dietary ingredient of rabbitfish Siganus canaliculatus, one of a few farmed herbivorous marine teleosts in China, its preference (feeding selectivity) for different macroalgae was determined in this study. The decomposition of a large amount of unexploited macroalgal resource along the coast of China often results in heavy environmental pollution. ![]() You, Cuihong Zeng, Fangui Wang, Shuqi Li, Yuanyou Preference of the herbivorous marine teleost Siganus canaliculatus for different macroalgae
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