Effect of Zataria multiflora essential oils on rainbow trout (Oncorhynchus mykis) complement component activity and lysozyme

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Abstract

Influence of dietary administration of Zataria multiflora Bioss was evaluated on complement
component activity and lysozyme of rainbow trout (Oncorhynchus mykiss) to determine stimulatory
effect of essential oils. Fish weighting 100±10 g were fed with different doses of 10, 20 and 40 ml/kg
food for a period of 10 days. Alternative Complement Activity (CH50%) and serum lysozyme activity
were measured on days 1, 8, 15 and 29 after the essential oils administration. The obtained results
showed that for first and eighth days of sampling, the complement component mean in treatment
groups were significant higher than control group, while negligible difference is shown between
treatment groups. For fifteenth and twenty ninth days of sampling, no significant difference was seen
in the complement component mean among all examined groups. Also, the results of experiment show
that for all of days of sampling, essential oils of Zataria multiflora Bioss have no effect on serum
lysozyme activity.

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Iranian Scientific Fisheries Journal
Volume 21, Issue 4 - Serial Number 81
May and June 2013
Pages 13-23

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