Effect of graded levels of aquapro herbal stimulant on growth and intestinal morphology in dusky kob Argyrosomus japonicus (Temminck Schlegel 1843)

Madibana Molatelo Junior, . and Lewis Brett Roderick, . and Toefy Rashieda, . Effect of graded levels of aquapro herbal stimulant on growth and intestinal morphology in dusky kob Argyrosomus japonicus (Temminck Schlegel 1843). pp. 162-171. ISSN 0116-6514

This study was designed to test the effect of a herbal product Aquapro on the growth performance and gut morphology of dusky kob Argyrosomus japonicus (Temminck Schlegel 1843) in a 49-day feeding trial. Four diets containing Aquapro at 0 (Aqua0) 50 (Aqua50) 100 (Aqua100) and 150 (Aqua150) g.kgdry matter (DM) were formulated. Forty-five fish (14.44 0.27 g) were randomly distributed into each of 12 experimental tanks. Each dietary treatment was randomly allocated to three tanks and offered to fish at 2.8 body weight. Ten fish from each tank were randomly sampled weekly for length and weight measurements. At termination three fish from each tank were sampled for distal intestinal tissues for histology preparation. A non-significant (P 0.05) interaction between the diets and the fish age (weeks) on both the weight and caudal length of the fish was observed. The fish weight decreased significantly with an increase in Aquapro inclusion in the diets beyond 100 g.kg . The Aqua150 diet produced the least weight gain of 24.57 2.44 g. Aquapro inclusion in the diets did not cause any gut morphological alterations in the fish. In conclusion Aquapro product up to 100 g.kg kob diet does not negatively affect juvenile dusky kob growth and all the tested inclusion levels did not cause gut inflammation thereby suggesting uninterrupted nutrient absorption.

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Abstract

This study was designed to test the effect of a herbal product Aquapro on the growth performance and gut morphology of dusky kob Argyrosomus japonicus (Temminck Schlegel 1843) in a 49-day feeding trial. Four diets containing Aquapro at 0 (Aqua0) 50 (Aqua50) 100 (Aqua100) and 150 (Aqua150) g.kgdry matter (DM) were formulated. Forty-five fish (14.44 0.27 g) were randomly distributed into each of 12 experimental tanks. Each dietary treatment was randomly allocated to three tanks and offered to fish at 2.8 body weight. Ten fish from each tank were randomly sampled weekly for length and weight measurements. At termination three fish from each tank were sampled for distal intestinal tissues for histology preparation. A non-significant (P 0.05) interaction between the diets and the fish age (weeks) on both the weight and caudal length of the fish was observed. The fish weight decreased significantly with an increase in Aquapro inclusion in the diets beyond 100 g.kg . The Aqua150 diet produced the least weight gain of 24.57 2.44 g. Aquapro inclusion in the diets did not cause any gut morphological alterations in the fish. In conclusion Aquapro product up to 100 g.kg kob diet does not negatively affect juvenile dusky kob growth and all the tested inclusion levels did not cause gut inflammation thereby suggesting uninterrupted nutrient absorption.

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Item Type:	Article
AGROVOC Term:	Argyrosomus japonicus
AGROVOC Term:	Sciaenidae
AGROVOC Term:	Jewfish
AGROVOC Term:	Butterfish
AGROVOC Term:	Kingfishers
AGROVOC Term:	Fish feeding
AGROVOC Term:	Feeding
AGROVOC Term:	Dietary
AGROVOC Term:	Feed additives
AGROVOC Term:	Animal growth stimulants
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8742

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