Effects of sodium diformate and citric acid on body composition, serum enzymes activity and alimentary canal tissue of the juvenile rainbow trout (Oncorhynchus mykiss)

Autor: Marzeyeh Dostani Dezfoli, Ebrahim Rajabzadeh Ghatrami, Rahim Abdi
Jazyk: perština
Rok vydání: 2020
Předmět:
Zdroj: تغذیه آبزیان, Vol 5, Iss 2, Pp 27-38 (2020)
Druh dokumentu: article
ISSN: 2980-8499
DOI: 10.22124/janb.2020.15896.1082
Popis: This study evaluates the effects of different levels of acidifier: Sodium diformate and citric acid on body composition, serum enzymes and the alimentary canal tissue in rainbow trout (Oncorhynchus mykiss). For this purpose, 630 fingerling fish(mean weight: 16.55 ± 0.72 g), were randomly distributed in twenty one 200-L fiberglass tanks (30 fish per tank). This study was performed 60 days with seven experimental treatments: control (only fed with commercial diet: FFT2), three levels of sodium diformate added to diet: 0.2% (treatment A), 0.4% (treatment B), 0.6% (treatment C) and also three levels of sodium diformate in combination with citric acid with an equal rates: 0.1% (treatment D), 0.2% (treatment E) and 0.3% (treatment F). The fish were fed 2 % based of body weight three times daily at 8:00, 12:00 and 16:00 for two months. The results indicated that different levels of sodium diformate and citric acid supplements used had no significant effect on the activity of serum enzymes of rainbow trout in comparison with the control treatment (p>0.05); while it had significant effects on the protein, ash and moisture of the body composition among the experimental treatments (p
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