Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/24028
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Effects of different commercial diets on growth performance, health and resistance to Tetrahymena sp. infection in guppies, Poecilia reticulata (Peters)
Authors: Sharon, Galit
Fridman, Sophie
Reiss-Hevlin, Nitzan
Sinai, Tamar
Boisot, Pascal
Zilberg, Dina
Contact Email: sophie.fridman@stir.ac.uk
Keywords: ornamental fish
commercial diet
guppy
histopathology
tetrahymena
growth
Issue Date: Jul-2016
Publisher: Wiley-Blackwell
Citation: Sharon G, Fridman S, Reiss-Hevlin N, Sinai T, Boisot P & Zilberg D (2016) Effects of different commercial diets on growth performance, health and resistance to Tetrahymena sp. infection in guppies, Poecilia reticulata (Peters), Aquaculture Research, 47 (7), pp. 2276-2286.
Abstract: The effects of feeding guppy fry, Poecilia reticulata (Peters), different commercial diets from BernAqua [MeM (R=Regular, O=Ornamental and P=Premium) and experimental feed (EF] and Ocean Nutrition (ON) on growth was tested for 57days. Health status and resistance to Tetrahymena infection were analysed at the end of the trial. The highest growth was obtained in fish fed MeM Regular and MeM Premium (mean final weights of 427 and 417mg respectively). Fish fed EF had a significantly higher rate of spinal deformity (12.7%) than all other feeding groups (3.05% or less). Histological analysis revealed the accumulation of liver glycogen and/or lipid in fish from all feeding groups; fat accumulation in the abdomen was most pronounced in the EF and MeM Regular-fed fish, and muscle dystrophy was observed in ca. 50% of the fish from all feeding groups except the MeM Ornamental-fed group. The highest mortality following Tetrahymena infection occurred in fish fed EF (87%) and the lowest mortality in the MeM Ornamental-fed fish (58%). Mortalities in all other feeding groups ranged between 69% and 76%. In summary, MeM Ornamental feed provided a moderate weight gain, no muscle dystrophy, negligible deformity and the greatest resistance to parasitic infection.
Type: Journal Article
URI: http://hdl.handle.net/1893/24028
DOI Link: http://dx.doi.org/10.1111/are.12679
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: Ben-Gurion University of the Negev
Aquaculture
Central- and Northern-Arava Research and Development, Israel
Ben-Gurion University of the Negev
InVivo Group
Ben-Gurion University of the Negev

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