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Larval Nutrition of Silver Barb Barbodes Gonionotus with an Emphasis on Protein-Energy Requirements and Feeding Strategy

A series of experiments were conducted to determine the possibility of rearing silver barb larvae on an artificial diet. Prior to the evaluation of artificial diet in rearing silver barb larvae, a study was conducted to determine the changes in the amino acid profile of silver barb from freshly s...

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Main Author: Tayag, Carina Miranda
Format: Thesis
Language:English
English
Published: 2004
Subjects:
Barbs (Fish) - Larvae - Food - Case studies
Online Access:http://psasir.upm.edu.my/id/eprint/6150/1/FP_2004_31.pdf
http://psasir.upm.edu.my/id/eprint/6150/
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spelling my.upm.eprints.61502023-10-11T08:47:27Z http://psasir.upm.edu.my/id/eprint/6150/ Larval Nutrition of Silver Barb Barbodes Gonionotus with an Emphasis on Protein-Energy Requirements and Feeding Strategy Tayag, Carina Miranda A series of experiments were conducted to determine the possibility of rearing silver barb larvae on an artificial diet. Prior to the evaluation of artificial diet in rearing silver barb larvae, a study was conducted to determine the changes in the amino acid profile of silver barb from freshly stripped eggs to newly hatched larvae. The result showed that the amino acid pattern changed according to the developmental stages of the fish larvae. The optimum protein requirement of silver barb larvae was determined using five isocaloric diets with varying protein levels (40, 45, 50, 55 and 60% protein). The results showed that the larval growth was highest when they were fed a diet containing 55% protein followed by those fed with 50, 45, 60 and 40% protein. Although the highest survival was obtained among larvae fed on a 50% protein diet, it was not significantly different (P>0.05) from the survival of those fed on a 55% protein diet. In the following study, the optimal protein-energy requirement of silver barb larvae was determined. Six experimental diets containing two levels of protein (50% and 55% protein) and three energy levels (18.8, 19.7 and 20.5 kJ g-') were evaluated. In this study, larvae fed a diet containing 50% protein with 19.7 kJ g" energy obtained the best growth and highest survival. This level was found to be optimum for growth and maintenance of the larvae. An experiment was also conducted to find the best feeding rate for silver barb larvae. The present study showed a significant relationship between feeding rate and growth of the larvae. Based on growth, feed efficiency and survival, an optimal feeding rate of 45% BW d-' was found for silver barb larvae. Lastly, this study revealed that silver barb larvae are visual feeder. Feeding the larvae throughout the day (day and night) did not give any beneficial effect for the larvae and resulted in lower growth and survival. This study suggested that feeding the larvae four times during daytime was the best feeding frequency for silver barb larviculture. 2004-05 Thesis NonPeerReviewed text en http://psasir.upm.edu.my/id/eprint/6150/1/FP_2004_31.pdf Tayag, Carina Miranda (2004) Larval Nutrition of Silver Barb Barbodes Gonionotus with an Emphasis on Protein-Energy Requirements and Feeding Strategy. Masters thesis, Universiti Putra Malaysia. Barbs (Fish) - Larvae - Food - Case studies English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
topic Barbs (Fish) - Larvae - Food - Case studies
spellingShingle Barbs (Fish) - Larvae - Food - Case studies
Tayag, Carina Miranda
Larval Nutrition of Silver Barb Barbodes Gonionotus with an Emphasis on Protein-Energy Requirements and Feeding Strategy
description A series of experiments were conducted to determine the possibility of rearing silver barb larvae on an artificial diet. Prior to the evaluation of artificial diet in rearing silver barb larvae, a study was conducted to determine the changes in the amino acid profile of silver barb from freshly stripped eggs to newly hatched larvae. The result showed that the amino acid pattern changed according to the developmental stages of the fish larvae. The optimum protein requirement of silver barb larvae was determined using five isocaloric diets with varying protein levels (40, 45, 50, 55 and 60% protein). The results showed that the larval growth was highest when they were fed a diet containing 55% protein followed by those fed with 50, 45, 60 and 40% protein. Although the highest survival was obtained among larvae fed on a 50% protein diet, it was not significantly different (P>0.05) from the survival of those fed on a 55% protein diet. In the following study, the optimal protein-energy requirement of silver barb larvae was determined. Six experimental diets containing two levels of protein (50% and 55% protein) and three energy levels (18.8, 19.7 and 20.5 kJ g-') were evaluated. In this study, larvae fed a diet containing 50% protein with 19.7 kJ g" energy obtained the best growth and highest survival. This level was found to be optimum for growth and maintenance of the larvae. An experiment was also conducted to find the best feeding rate for silver barb larvae. The present study showed a significant relationship between feeding rate and growth of the larvae. Based on growth, feed efficiency and survival, an optimal feeding rate of 45% BW d-' was found for silver barb larvae. Lastly, this study revealed that silver barb larvae are visual feeder. Feeding the larvae throughout the day (day and night) did not give any beneficial effect for the larvae and resulted in lower growth and survival. This study suggested that feeding the larvae four times during daytime was the best feeding frequency for silver barb larviculture.
format Thesis
author Tayag, Carina Miranda
author_facet Tayag, Carina Miranda
author_sort Tayag, Carina Miranda
title Larval Nutrition of Silver Barb Barbodes Gonionotus with an Emphasis on Protein-Energy Requirements and Feeding Strategy
title_short Larval Nutrition of Silver Barb Barbodes Gonionotus with an Emphasis on Protein-Energy Requirements and Feeding Strategy
title_full Larval Nutrition of Silver Barb Barbodes Gonionotus with an Emphasis on Protein-Energy Requirements and Feeding Strategy
title_fullStr Larval Nutrition of Silver Barb Barbodes Gonionotus with an Emphasis on Protein-Energy Requirements and Feeding Strategy
title_full_unstemmed Larval Nutrition of Silver Barb Barbodes Gonionotus with an Emphasis on Protein-Energy Requirements and Feeding Strategy
title_sort larval nutrition of silver barb barbodes gonionotus with an emphasis on protein-energy requirements and feeding strategy
publishDate 2004
url http://psasir.upm.edu.my/id/eprint/6150/1/FP_2004_31.pdf
http://psasir.upm.edu.my/id/eprint/6150/
_version_ 1781706605049413632
score 13.211869

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