Effects on Growth and Skin Color Different Rations Added Feed of Natural and Synthetic Pigment Sources in Parrot Cichlid Fish

Parrot cichlid (Cichlasoma citrinellum x Cichlasoma synspilum), one of the aquarium fishes, has eye-catching colors in its skin and its pink-red carotenoid group is provided by its colorants. The aim of this study is to compare the accumulations of synthetic and natural colorants in the skin. ۵ different groups [control group (K۰), karofil pink (KAP), Haematococcus pluvialis (HP), red beet and karofil pink (KP + CP), red beet and Haematococcus pluvialis (KP + HP)] and ۲ replicates in ۳ g parrot fish was fed for ۳ months. Live weight gain was measured with the highest of ۲۷,۱۷±۱,۶۱ g and Karofil Pink group and the lowest was ۱۷,۵۸±۱,۶۶ g with Haematococcus pluvialis. The feed conversion coefficient (FCR) was measured with ۱.۴۷±۰.۰۹ in the Karofil Pink supplemented feed group and the lowest in the control group by ۲.۲۹±۰.۵۸. According to chemical (spectrophotometric) measurements made from the skins of the individuals in the experimental groups the highest value was ۶۹۴,۳۳±۴۰۷,۸۶ and the lowest value was ۲۷۸,۶۶±۶۹,۱۷ with Haematococcus pluvialis. According to physical measurements Hunter L and Hunter a values were found to be similar. According to Hunter b values, the highest values were determined in the feed group containing KP + HP and the lowest K۰ group.

کلیدواژه ها:

cihclid ، astaxanthin ، Haematococcus pluvialis ، red beet powder ، biometric growth ، skin color