Effect of Artemia Nauplii, Microencapsulated Diet and their Combination on the Growth of Koi Carp (Cyprinus carpio var. Koi) Fry

Authors

Mohamed Khalfan AlWahaibi, Center for Excellence in Marine Biotechnology, Sultan Qaboos University, P.O. Box 50, PC 123, Al-Khoud, Sultanate of Oman
Wenresti G. Gallardo, Department of Marine Science and Fisheries, College of Agricultural and Marine Sciences, Sultan Qaboos University, P.O. Box 34, PC 123, Al-Khoud, Sultanate of OmanFollow
Ahmed Al Souti, Department of Marine Science and Fisheries, College of Agricultural and Marine Sciences, Sultan Qaboos University, P.O. Box 34, PC 123, Al-Khoud, Sultanate of Oman
Mohammed Al Qarni, Department of Marine Science and Fisheries, College of Agricultural and Marine Sciences, Sultan Qaboos University, P.O. Box 34, PC 123, Al-Khoud, Sultanate of Oman

Abstract

Koi carp (Cyprinus carpio var. koi) is an ornamental and economically important freshwater fish. Despite its global trade, knowledge on the suitable diet for optimum growth remains limited. To address this gap, we investigated the effect of microencapsulated diet, Artemia, and their combination on the weight gain of koi carp fry reared in glass tanks for six weeks at temperatures ranging from 29.5°C to 35.8°C. A total of 900 koi carps were randomly assigned to three treatments receiving different feed types at the same feeding time. Koi carp fry fed microencapsulated diet exhibited significantly higher (P < 0.05) final weight (0.42 g), weight gain (0.27 g) and specific growth rate (5.08%) compared to those fed Artemia nauplii only or the combination of both feeds. These results suggest that feeding koi carp with microencapsulated diet significantly improves the growth of koi carp fry in indoor tanks.

Recommended Citation

AlWahaibi, Mohamed Khalfan; Gallardo, Wenresti G.; Souti, Ahmed Al; and Qarni, Mohammed Al (2025) "Effect of Artemia Nauplii, Microencapsulated Diet and their Combination on the Growth of Koi Carp (Cyprinus carpio var. Koi) Fry," Journal of Agricultural and Marine Sciences: Vol. 30: Iss. 1, Article 5.
https://doi.org/10.53541/2410-1079.1345
Available at: https://jams.squ.edu.om/home/vol30/iss1/5