Effects of Green Tea Extracts on freshwater angelfish, Pterophyllum scalare Growth Performance

Abstract

The study was conducted to investigate the effects of dietary green tea extract (GTE) supplementation in diet on growth performance, feed utilization and biometric indexes in freshwater angelfish, Pterophyllum scalare. The fish (mean body weight, 2.61±0.01 g) were fed fish meal diets that included 0% (control), 2.5 and 5% GTE for 8 weeks. The results showed, the addition of green tea extract did not have a positive effect on growth performance and other variables. Addition of green tea extract did not change the amount of viscerosomatic index and hepatosomatic index.

Keywords

• Pterophyllum scalare,Green tea extract,Growth performance,Feed utilization,Biometric indexes

References

1. Cho, S.H., Lee, S.M., Park, B.H., Ji, S.C., Lee, J., Bae, J. & Oh, S.Y. (2007). Effect of dietary inclusion of various sources of green tea on growth, body composition and blood chemistry of the juvenile olive flounder, Paralichthys olivaceus. Fish Physiology and Biochemistry, 33 (1), 49–57.
2. Company, R., Calduch-Giner, J.A., Kaushik, S. & Pérez-Sánchez, P. (1999). Growth performance and adiposity in Gilthead Sea Bream (Sparus aurata): risks and benefits of high energy diets. Aquaculture, 171 (3-4), 279–292.
3. Csép, L., Bud, I. & Chirila, F. (2010). Disease resistance effect of sea-buckthorn (Hippophae rhamnoides L.) added in the fish diet. Aquaculture, Aquarium, Conservation & Legislation, International Journal of the Bioflux Society, 3 (5), 339-346.
4. Degani, G. (1993). Growth and body composition of juveniles of (Liechtenstein) (Pisces: Cichlidae) at different densities and diets. Aquaculture and Fisheries Management, 24 (6), 725-730.
5. Folch, J., Lees, M. & Sloane-Stanley, G.H. (1957). A simple method for the isolation and purification of total lipids from animal tissues. The Journal of Biological Chemistry, 226 (1), 497-509.
6. Gabor, E.F., Sara A. & Barbu, A. (2010). The effects of some phytoadditives on growth, health and meat quality on different species of fish. Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Animal Science and Biotechnologies, 43 (1), 61-65.
7. Hadidi, S., Glenney, G.W., Welch, T.J., Silverstein, J.T. & Wiens, G.D. (2008). Spleen size predicts resistance of rainbow trout to flavobacterium psychrophilum challenge. The Journal of Immunology, 180 (6), 4156-4165.
8. Harikrishnan, R., Balasundaram, C. & Heo, M.S. (2011). Impact of plant products on innate and adaptive immune system of cultured finfish and shellfish. Aquaculture, 317 (1-4), 1–15.

9. Hwang, J.H., Lee, S.W., Rha, S.J., Yoon, H.S., Park, E.S., Han, K.H. & Kim, S.J. (2013). Dietary green tea extract improves growth performance, body composition, and stress recovery in the juvenile black rockfish, Sebastes schlegeli. Aquaculture International, 21 (3), 525-538.
10. Latimer, Jr., G.W. (Ed.) (2016). Official Methods of Analysis of AOAC International. 20th Edition. AOAC International, Maryland, USA. 3172 pp.
11. Lim, L.C. & Wong, C.C. (1997). Use of the rotifer Brachionus calyciflorus Pallas, in fresh water ornamental fish larviculture. Hydrobiologia, 358 (1-3), 269-273.
12. Ortega-Salas, A.A., Cortes, G.I. & Reyes-Bustamante, H. (2009). Fecundity, growth, and survival of the angelfish Pterophyllum scalare (Perciformes: Cichlidae) under laboratory conditions. Revista de Biología Tropical, 57 (3),741–747.
13. Reverter, M., Bontemps, N., Lecchini, D., Banaigs, B. & Sasal, P. (2014). Use of plant extracts in fish aquaculture as an alternative to chemotherapy: current status and future perspectives. Aquaculture, 433, 50-61.
14. Sales, J. & Janssens, G.P.J. (2003). Nutrient requirement of ornamental fish. Aquatic Living Resources, 16 (6), 533-540.
15. Sonmez, A.Y., Bilen, S., Alak, G., Hisar, O., Yanik, T. and Biswas, G. (2015). Growth performance and antioxidant enzyme activities in rainbow trout (Oncorhynchus mykiss) juveniles fed diets supplemented with sage, mint and thyme oils, Fish Physiology and Biochemistry, 41 (1), 165-175.
16. Zhou, J., Lin, Y., Ji, H. & Yu, H. (2016). The effect of green tea waste on growth and health of grass carp (Ctenopharyngodon idellus). Turkish Journal of Fisheries and Aquatic Sciences, 16, 679-689.