Acta Aquatica Turcica E-ISSN: 2651-5474 15(3), 340-346 (2019) DOI: https://doi.org/10.22392/actaquatr.529007 The Effects of Dietary Administration with High Level Red Pepper (Capsicum annuum) on Growth Performance, Coloration, Histology and Protection Against Aeromonas sobria in Yellow Tail Cichlid, Pseudotropheus acei Nalan Özgür YİĞİT1 , Seval BAHADIR KOCA1 , Özlem ÖZMEN2 , Behire Işıl DİDİNEN1 , Seçil METİN1* 1Isparta Applied Sciences University, Eğirdir Fisheries Faculty, Isparta, Turkey 2Mehmet Akif Ersoy University, Faculty of Veterinary Medicine, Department of Pathology, Burdur, Turkey Corresponding Author:
[email protected] Research Article Received 19 February 2019; Accepted 24 April 2019; Release date 15 September 2019. How to Cite: Yiğit, N. Ö., Bahadır Koca, S., Özmen, Ö., Didinen, B. I., & Metin, S. (2019). The effects of dietary administration with high level red pepper (Capsicum annuum) on growth performance, coloration, histology and protection against Aeromonas sobria in yellow tail cichlid, Pseudotropheus acei. Acta Aquatica Turcica, 15(3), 340-346. https://doi.org/10.22392/actaquatr.529007 Abstract The present study was conducted to determine the effects of high level red pepper supplementation to diet on the growth performance, coloration, histology, intestinal microflora and protection against Aeromonas sobria in yellow tail cichlid (Pseudotropheus acei). Two isonitrogenous (37% crude protein) and isocaloric (3831 kcall/kg Gross energy) experimental diets were prepared by adding of 15% pepper meal to control diet. The feeding trial was conducted in triplicate for 90 day in aquariums (80 L). At the beginning of the experiment, twenty fish (initial weight 0.06 g) were stocked into each aquarium. The end of the experiment, fish fed red pepper supplemented to diets did not have any marked effect on the weight gain, feed conversion ratio, specific growth rate and survival.