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Effect of herbal supplement of Sangrovit on growth performance, blood biochemical parameters, survival and stress resistance in Oncorhynchus mykiss fry
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Mohammad Reza Imanpoor11   , Zahra Zahra Roohi * , Sara Imanpoor1 |
1- Fisheries Sciences, Department of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Iran.
Fisheries Sciences, Department of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Iran., Fisheries Sciences, Department of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Iran. , roohi26_iut@yahoo.com |
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Abstract: (2173 Views) |
| This study was conducted to evaluate the effect of herbal supplement of Sangrovit on the growth performance, blood biochemical indices, survival and resistance to salinity stress in rainbow trout fry. Fish (1.509±0.011 g) were divided into four groups fed on diets containing Sangrovit in different levels: 0 (control), 0.05, 0.1 and 0.15 % for 45 days. Results showed that specific growth rate and body weight gain were significantly (P<0.05) different among the experimental groups, and highest levels of them were observed in treatment groups with Sangrovit. Feed conversion ratio and total protein decreased significantly in fish fed diets containing Sangrovit. On the other hand, there were no significant differences were observed in glucose and cholesterol levels among the treatments (P>0.05). Blood samples were obtained in four times after stress (first, third, fifth and seventh days) for evaluate hematocrit levels. Salinity significantly affected hematocrit levels (P<0.05). On the first day of after stress, the hematocrit levels significantly were increased in all groups (P<0.05). However, the hematocrit levels were decreased gradually in all groups since third day. Present study suggests that Sangrovit at 0.1% can effectively improve the growth performance and feed utilization in rainbow trout fry. |
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| Keywords: Sangrovit, Blood, Stress, Growth, Rainbow trout |
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Full-Text [PDF 628 kb]
(670 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2017/01/19 | Accepted: 2017/05/7 | Published: 2019/12/22
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