Poly‐β‐hydroxybutyrate concentration, microbial enzymes activity, and nutritional value in biofloc system using different carbon sources and C/N ratios in common carp, Cyprinus carpio culture

Autor: Ebrahim H. Najdegerami, Amir Tukmechi
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Journal of the World Aquaculture Society, Vol 54, Iss 4, Pp 844-860 (2023)
Druh dokumentu: article
ISSN: 1749-7345
0893-8849
DOI: 10.1111/jwas.12922
Popis: Abstract This experiment was designed with three carbon sources (Dextrin, wheat bran, and corn starch), each with two carbon to nitrogen (C/N) ratios (19 and 30) for 4 weeks. The data obtained from two variables (carbon sources, C/N ratio) were analyzed with a two‐way analysis of variance. At the end of the experiment, the results indicated that the use of varying carbon sources and C/N ratios significantly changed the nutritional value of microbial flocs (p 0.05). The microbial enzyme profile changed in all carbon sources but C/N ratios did not affect microbial enzymes in the treatments except in a significantly higher value for amylase and acidic protease activity at a C/N ratio of 30 (p
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