Development of Artificial Diet and Optimum Feeding Strategy For Malaysian River Catfish Mystus Nemurus (Cuvier and Valenciennes) Larvae

Four feeding experiments were conducted to evaluate the growth and survival of Mystus nemurus larvae under different diets and feeding regimes. First experiment evaluated the influence of the gradual and direct weaning techniques on growth and survival of the larvae. Newly hatched live food (Arte...

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Main Author:	Eguia, Ruel Villacorte
Format:	Thesis
Language:	English English
Published:	1998
Subjects:	Feeding and feeds Cat fish - Malaysia Mystus nemurus
Online Access:	http://psasir.upm.edu.my/id/eprint/10419/1/FP_1998_9_A.pdf
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id	my-upm-ir.10419
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spelling	my-upm-ir.104192011-04-11T02:28:16Z Development of Artificial Diet and Optimum Feeding Strategy For Malaysian River Catfish Mystus Nemurus (Cuvier and Valenciennes) Larvae 1998 Eguia, Ruel Villacorte Four feeding experiments were conducted to evaluate the growth and survival of Mystus nemurus larvae under different diets and feeding regimes. First experiment evaluated the influence of the gradual and direct weaning techniques on growth and survival of the larvae. Newly hatched live food (Artemia nauplii) was provided to all treatments at the start of exogenous feeding. For gradual weaning scheme, the live food was gradually decreased on day 4 or 6 until the larvae were on 100% artificial diet. In contrast the larval diet was shifted from live food to 100% artificial diet starting day 6 or 10 for direct weaning scheme while the controls were fed on Artemia throughout the study. This study showed that gradual weaning at day 4 of exogenous feeding gave better growth and survival rate comparable to the controls and seemed to be the most economically and biologically viable techniques for feeding M. nemurus larvae. The second experiment was conducted to study the effect of feed particle size on feeding behavior and ultimately growth and survival of larvae. Different feed particle sizes were administered at different stages of weaning. In Treatment I, the larvae were given an assorted size «425-700µm) diet at the start of weaning onwards. Larvae on Treatment II were given different sizes of diet for different period. i.e. <425µm at the start of weaning (day 4) to day 8, 425-600µm from day 9 to day 12 and 600-700µm from day 13 to day 16. The two treatments were also tested without any weaning or live food while the control was similar to Experiment I. Treatment I gave the best growth and survival rate equivalent to the control. Continuos feeding of a wide range of feed particle size during larviculture seemed to benefit the uneven growth rate in M. nemurus larvae. Treatments without weaning gave inferior growth and total mortality after day 8. Feeding and feeds Cat fish - Malaysia Mystus nemurus 1998 Thesis http://psasir.upm.edu.my/id/eprint/10419/ http://psasir.upm.edu.my/id/eprint/10419/1/FP_1998_9_A.pdf application/pdf en public masters Universiti Putra Malaysia Feeding and feeds Cat fish - Malaysia Mystus nemurus Faculty of Agriculture English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Feeding and feeds Cat fish - Malaysia Mystus nemurus
spellingShingle	Feeding and feeds Cat fish - Malaysia Mystus nemurus Eguia, Ruel Villacorte Development of Artificial Diet and Optimum Feeding Strategy For Malaysian River Catfish Mystus Nemurus (Cuvier and Valenciennes) Larvae
description	Four feeding experiments were conducted to evaluate the growth and survival of Mystus nemurus larvae under different diets and feeding regimes. First experiment evaluated the influence of the gradual and direct weaning techniques on growth and survival of the larvae. Newly hatched live food (Artemia nauplii) was provided to all treatments at the start of exogenous feeding. For gradual weaning scheme, the live food was gradually decreased on day 4 or 6 until the larvae were on 100% artificial diet. In contrast the larval diet was shifted from live food to 100% artificial diet starting day 6 or 10 for direct weaning scheme while the controls were fed on Artemia throughout the study. This study showed that gradual weaning at day 4 of exogenous feeding gave better growth and survival rate comparable to the controls and seemed to be the most economically and biologically viable techniques for feeding M. nemurus larvae. The second experiment was conducted to study the effect of feed particle size on feeding behavior and ultimately growth and survival of larvae. Different feed particle sizes were administered at different stages of weaning. In Treatment I, the larvae were given an assorted size «425-700µm) diet at the start of weaning onwards. Larvae on Treatment II were given different sizes of diet for different period. i.e. <425µm at the start of weaning (day 4) to day 8, 425-600µm from day 9 to day 12 and 600-700µm from day 13 to day 16. The two treatments were also tested without any weaning or live food while the control was similar to Experiment I. Treatment I gave the best growth and survival rate equivalent to the control. Continuos feeding of a wide range of feed particle size during larviculture seemed to benefit the uneven growth rate in M. nemurus larvae. Treatments without weaning gave inferior growth and total mortality after day 8.
format	Thesis
qualification_level	Master's degree
author	Eguia, Ruel Villacorte
author_facet	Eguia, Ruel Villacorte
author_sort	Eguia, Ruel Villacorte
title	Development of Artificial Diet and Optimum Feeding Strategy For Malaysian River Catfish Mystus Nemurus (Cuvier and Valenciennes) Larvae
title_short	Development of Artificial Diet and Optimum Feeding Strategy For Malaysian River Catfish Mystus Nemurus (Cuvier and Valenciennes) Larvae
title_full	Development of Artificial Diet and Optimum Feeding Strategy For Malaysian River Catfish Mystus Nemurus (Cuvier and Valenciennes) Larvae
title_fullStr	Development of Artificial Diet and Optimum Feeding Strategy For Malaysian River Catfish Mystus Nemurus (Cuvier and Valenciennes) Larvae
title_full_unstemmed	Development of Artificial Diet and Optimum Feeding Strategy For Malaysian River Catfish Mystus Nemurus (Cuvier and Valenciennes) Larvae
title_sort	development of artificial diet and optimum feeding strategy for malaysian river catfish mystus nemurus (cuvier and valenciennes) larvae
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Agriculture
publishDate	1998
url	http://psasir.upm.edu.my/id/eprint/10419/1/FP_1998_9_A.pdf
_version_	1747811117700218880

Development of Artificial Diet and Optimum Feeding Strategy For Malaysian River Catfish Mystus Nemurus (Cuvier and Valenciennes) Larvae

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