Growth indices, feeding efficiency and survival of rainbow trout (Oncorhynchus mykiss) fed diets containing different levels of Echinacea angustifolia and Origanum majorana extracts

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SOTOUDEH EBRAHIM; Mardani Fatemeh; JAFARI MARZIYEH; Habibi Hasan; Moradyan Seyed Hossein

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Journal: JOURNAL OF AQUATIC ANIMALS NUTRITION Year:2018 | Volume:4 | Issue:1 Page(s): 1-12

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Title

Growth indices, feeding efficiency and survival of rainbow trout (Oncorhynchus mykiss) fed diets containing different levels of Echinacea angustifolia and Origanum majorana extracts

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Keywords

Oncorhynchus mykiss

Echinacea angustifolia

Origanum majorana

Medicinal plants

Abstract

This study was conducted to evaluate the effects of different levels of Echinacea angustifolia and Origanum majorana extracts on growth performance, feed efficiency and survival of rainbow trout (Oncorhynchus mykiss) juveniles. Seven experimental diets with 0 (control), 0. 1, 0. 2 and 0. 4% E. angustifolia and 0. 1, 0. 2 and 0. 4% O. majorana were prepared. Fish with initial weight 2. 6 ± 0. 3 g were randomly divided into 7 groups in triplicates and were fed with experimental diet for 4 weeks. At the end trial, the growth parameters, feed efficiency and survival were calculated. Growth and feed indices such as specific growth rate (SGR), Feed conversion ratio (FCR), weight gain, feed efficiency, average final weight, protein efficiency ratio were significantly affected by different levels of plant extracts (P<0. 05). Experimental treatments were not significantly affect on condition factor and final length (P>0. 05). However, condition factor was higher in fish fed higher levels of plant extracts. No mortality was observed during the experiment. Regression analyses showed relationship between SGR and FCR in fish fed O. majorana extracts (P<0. 05). According to the results of growth parameters and feed efficiency, it can be concluded that dietary 0. 2% extract of E. purpurea and 0. 1% of O. majorana have growth enhancement effects in this fish.

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APA: Copy

SOTOUDEH, EBRAHIM, Mardani, Fatemeh, JAFARI, MARZIYEH, Habibi, Hasan, & Moradyan, Seyed Hossein. (2018). Growth indices, feeding efficiency and survival of rainbow trout (Oncorhynchus mykiss) fed diets containing different levels of Echinacea angustifolia and Origanum majorana extracts. JOURNAL OF AQUATIC ANIMALS NUTRITION, 4(1 ), 1-12. SID. https://sid.ir/paper/268321/en

Vancouver: Copy

SOTOUDEH EBRAHIM, Mardani Fatemeh, JAFARI MARZIYEH, Habibi Hasan, Moradyan Seyed Hossein. Growth indices, feeding efficiency and survival of rainbow trout (Oncorhynchus mykiss) fed diets containing different levels of Echinacea angustifolia and Origanum majorana extracts. JOURNAL OF AQUATIC ANIMALS NUTRITION[Internet]. 2018;4(1 ):1-12. Available from: https://sid.ir/paper/268321/en

IEEE: Copy

EBRAHIM SOTOUDEH, Fatemeh Mardani, MARZIYEH JAFARI, Hasan Habibi, and Seyed Hossein Moradyan, “Growth indices, feeding efficiency and survival of rainbow trout (Oncorhynchus mykiss) fed diets containing different levels of Echinacea angustifolia and Origanum majorana extracts,” JOURNAL OF AQUATIC ANIMALS NUTRITION, vol. 4, no. 1 , pp. 1–12, 2018, [Online]. Available: https://sid.ir/paper/268321/en

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