Effects of feeds on the growth and survival rate of Koi carp (Cyprinus carpio haematopterus) from 1 to 20 days old
Keywords
Abstract
The purpose of this study was to find a suitable feed for Koi carp during the nursing time, a period from 1 to 20 days old. Three types of feed were tested: Moina, bloodworms, and commercial food. Moina and bloodworms were used in the form of fresh biomass, while the commercial food was a type of fine powder and flakes with a protein content of 42%, specifically formulated for fish. There were three experimental treatments (NT) as follows: NT1: days 1 - 10, feeding Moina; days 11 - 15, feeding bloodworms; days 16 - 20, feeding commercial food. NT2: days 1 - 5, feeding Moina; days 6 - 10, feeding Moina + bloodworms (50:50 ratio); days 11 - 15, feeding bloodworms + commercial food (50:50 ratio); days 16 - 20, feeding commercial food. NT3: feeding commercial food from days 1 - 20. The stocking density was 5 fingerlings per liter. Each treatment was repeated 3 times simultaneously. The research results showed that the type of feed significantly affected the growth in length, weight, and survival rate of the fish (P < 0.05). The NT2 exhibited the best growth, with the highest length (24.03 ± 0.37 mm), weight (414.25 ± 8.06 mg), and had the highest survival rate (81.67 ± 0.33%). The NT3 had the lowest growth performance, with length (7.52 ± 0.34 mm), weight (75.18 ± 0.91 mg), and survival rate (54.33 ± 2.73%). The NT1 had an intermediate growth performance, with length (20.52 ± 0.32 mm) and weight (16.98 ± 0.33 mg) (P < 0.05). Briefly, these results help improve the koi carp rearing process in a commercial farming environment.
Downloads
References
Do, T. M. (2008). Experimental production of catfish (Pangasius conchophilus) breed (Unpublished master’s thesis). Can Tho University, Can Tho, Vietnam.
Ha, L. L. T. (2011). Scientific and technological results of the research project on technology for seed production and commercial farming of some ornamental fish species with export value (Report No. KC.06/06-10). Research Institute for Aquaculture No. 3, Nha Trang, Vietnam.
Le, K. V., Dinh, N. T., Pham, D. T., Do, T. M., Le, T. U. V., & Le, L. T. (2025). Effect of feeds on growth and survival rate of Banded mystus (Mystus mysticetus) from larvae to fry stage. Mekong River Fisheries Magazine 31(25), 50-61.
Le, Y. H. T. (2002). The effect of food on the growth of red tilapia (Unpublished bachelor’s thesis). Nong Lam University, Ho Chi Minh City, Vietnam.
Nguyen, K. V., & Pham, T. M. (2009). Scientific and technical basis for fish seed production. Ho Chi Minh City, Vietnam: Agricultural Publishing House.
Nguyen, T. T. B. (1997). Evaluation of the effectiveness of using some types of feed for raising catfish and basa fish (Unpublished bachelor’s thesis). Can Tho University, Can Tho, Vietnam.
Nguyen, T. V., Duong, N. L., & Nguyen, T. A. (2008). Research on rearing of Bleekeri (Micronema bleekeri) using different types of food. Can Tho University Science Journal 2, 67-75.
Truong, D. K. (2012). Effect of de-adhesive concentration on carp (Cyprinus carpio Linaeus, 1758) seed production (Unpublished bachelor’s thesis). Can Tho University, Can Tho province, Vietnam.
Truong, P. Q., Nguyen, Y. L. J., & Huynh, G. T. (2006). Aquaculture water quality management. Can Tho, Vietnam: Science Publishing House.
Vo, B. T. T. (2020). Research on the production process of Siamese catfish (Pseudomystus siamensis) (Ministerial-level scientific and technological summary report). Nong Lam University, Ho Chi Minh City, Vietnam.
