Turkish Journal of Fisheries and Aquatic Sciences
2014, Vol 14, Num, 1 (Pages: 125-133)
Enzymatic Characteristics and Growth Parameters of Ornamental Koi Carp (Cyprinus carpio var. Koi) Larvae Fed by Artemia nauplii and Cysts
Müge Aliye Hekimoğlu 1 ,Cüneyt Suzer 1 ,Şahin Saka 1 ,Kürşat Fırat 1
1 Ege University, Faculty of Fisheries, Aquaculture Department, 35100, Bornova, Izmir, Turkey
DOI :
10.4194/1303-2712-v14_1_14
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The purpose of this study was to compare the larval growth and digestive enzyme activities of koi carp (Cyprinus carpio
var. Koi) larvae fed on Artemia nauplii (AN) and decapsulated cyst (ADC). The experiment was carried out in triplicate and
lasted 27 days. Specific growth and survival rates, specific activities of total protease, lipase, amylase and chitinase were
examined in experimental groups. At the end of the experiment for group fed with AN total length, weight and SGR were
20.56±3.23 mm, 0.9±0.05 g and 2.03 % d−1, respectively and for group fed with ADC it was 28.16±4.81 mm, 0.28±0.16 g and
6.02 d−1 (P<0.05). However, survival rates in the group fed on ADC was 98.88% while in the group fed on AN was 97.77%
(P>0.05). Besides, there were significant differences on specific enzyme activities (total protease, amylase, chitinase, lipase)
(P<0.05). Obtained results suggested that koi larvae fed by ADC presented relatively higher growth parameters.
Keywords :
Cyprinus carpio var. Koi, ornamental fish, Artemia cysts, larval feeding, digestive enzymes