Effects of Starvation and Re-Feeding on Growth Performance and Feed Utilization of Rainbow Trout, (Oncorhynchus mykiss)
Abstract
In the present study, the effects of short-term
starvation and refeeding on growth and feeding performances of rainbow trout (Oncorhynchus mykiss) with an average
initial weight of 100±1 g were investigated. After 1 week adaptation to
experimental condition, 80 fish were randomly distributed in 4 fiberglass tanks
(3 replication) with a flow-through system. The fish were exposed to 4
different feeding regimes; control: fed two times daily; T1: 1 day starvation
and 1 days refeeding; T2: 2 day starvation and 2 days refeeding; T3: 3 days
starvation and 3 days refeeding. Short-terms starvation and refeeding was
continued for 60 days. At the end of the experiment, final weight, SGR
(specific growth rate), WG (weight gain), FCR (feed conversion ratio) and FER
(feed efficiency ratio) were determined in control and treated groups. The
highest values were observed in control and T1. The lowest values were observed
in the T3. The differences between final weight, SGR, WG, FCR and FER were
statistically insignificant. In conclusion, rainbow trout have showed a
complete compensatory growth depending on times starvation and re-feeding.
Keywords
References
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Details
Primary Language
English
Subjects
-
Journal Section
Research Article
Authors
Tayfun Karataş
AĞRI İBRAHİM ÇEÇEN ÜNİVERSİTESİ, SAĞLIK HİZMETLERİ MESLEK YÜKSEKOKULU
Publication Date
December 30, 2016
Submission Date
January 9, 2017
Acceptance Date
November 30, 2016
Published in Issue
Year 2016 Volume: 31 Number: 2