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International Journal of Zoology and Applied Biosciences Research Article
Identification of age groups on feeding Spirulina to enhance growth, coloration and reproduction in Xiphophorus helleri
Nagarajan, R., R. Niranjani, J. Shoba and R. James
Year : 2017 | Volume: 2 | Issue: 4 | Pages: 180-184
Received on: 06/17/2017
Revised on: 07/06/2017
Accepted on: 07/07/2017
Published on: 08/25/2017
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Nagarajan, R., R. Niranjani, J. Shoba and R. James( 2017).
Identification of age groups on feeding Spirulina to enhance growth, coloration and reproduction in Xiphophorus helleri
. International Journal of Zoology and Applied Biosciences, 2( 4), 180-184.
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Abstract
To avoid the wastage of Spirulina diet, an experiment was conducted to identify the time and duration of feeding Spirulina diet on growth, coloration and reproduction in X.helleri for a period of 175 days as a function of age groups. Three age groups such as one month, two months, and three months old X.helleri were selected from the laboratory bred brooders. Feeding, growth and gonad weight of X.helleri were increased with increase in Spirulina levels. The feeding and growth parameters were high at pre-breeding as compared to post-breeding. Fish fed on 15% Spirulina diet had heavier gonad weight in all tested age groups and attained maturity earlier than fish fed on other diets. Two months old female X.helleri fed with Spirulina diet released maximum number of fry (570) followed by three months (478) and one month (368) old age groups. Similar trend was obtained in coloration also. However, carotenoid content of fry was maximum in one month old age group followed by two and three months old age groups; but they did not show any significant (t = 0.92; p > 0.05) difference between them. It suggests that, ideal supplementation of Spirulina diet to X.helleri at the age of two months to enhance growth, coloration and reproductive performances. As protein is the costliest component used in artificial feeds, it is necessary to reduce the cost of feeds and to stimulate growth, coloration and reproduction in ornamental fish culture.
Keywords
Age groups, Growth, Coloration, Reproduction, Spirulina, Xiphophorus helleri.
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© The Author(s) 2025. This article is published by International Journal of Zoology and Applied Biosciences under the terms of the Creative Commons Attribution 4.0 International License (creativecommons.org), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
