The effect of Short-term Period Starvation and Re-feeding on growth indices and blood factors in Sub-yearling Beluga (Huso Huso)

Document Type : Nutrition

Authors

1 Student of Ghaemshahr Islamic Azad University

2 Assistant Professor Islamic Azad University, Babol Branch

3 Assistant Professor, Islamic Azad University, Ghaemshahr Branch, Department of Fisheries, Ghaemshahr, Mazandaran

10.22034/aej.2020.248236.2351

Abstract

The present study was performed to identify growth performance and blood factors in short term starvation in Huso huso with mean initial weight of 34.58 ± 5.32. The treatments consisted of 4 groups in which the control treatment group (F) fed 4 times daily satiety, the SRF1 treatment with four alternate two-day starvation and 8-day feeding after each starvation period. SRF2 with two alternate four-day fasting and 16-day fasting after each starvation and the SRF3 treatment with an 8-day fasting and 32-day fasting period were tested for 40 days. The results showed that growth performance in experimental treatments was significantly affected by feeding process (p <0.05). SRF1 and SRF2 treatments showed significantly higher weight gain and specific growth rate than SRF3 treatment (p <0.05). There was no significant difference in liver index, gastrointestinal index and status factor (p> 0.05). The effect of starvation and malnutrition on blood parameters was significant (p <0.05). With 8-day starvation (SRF3), the level of red blood cells increased significantly compared to other treatments. According to the results obtained at the end of the experimental period, it can be concluded that the fish were able to adapt to shorter periods of starvation so that the 2 and 4 day starvation treatments had full compensatory growth. But the 8-day starvation treatment (SRF3) had less final weight than the control treatment, which shows a relative compensatory growth in them.

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Journal of Animal Environment

Articles in Press, Corrected Proof
Available Online from 04 October 2021

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