The Body Weight Changes and Gut Morphometry of Clarias gariepinus juveniles on Feeds Supplemented with Walnut (Tetracarpidium conophorum) Leaf and Onion (Allium cepa) Bulb Residues

This experiment was conducted to evaluate the effects of walnut (T. conophorum) leaf and onion (A. cepa) bulb on the gut morphometry of Clarias gariepinus towards elucidating its mechanism of growth promotion. Twenty Clarias gariepinus juveniles (7.39±0.29g/ fish) were allocated to nine treatments,...

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Autores principales:	Bello,O. S, Emikpe,B. O, Olaifa,F. E
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2012
Materias:	Onion bulb Walnut leaf Clarias gariepinus Growth Morphometry
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100045
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spelling	oai:scielo:S0717-950220120001000452012-06-08The Body Weight Changes and Gut Morphometry of Clarias gariepinus juveniles on Feeds Supplemented with Walnut (Tetracarpidium conophorum) Leaf and Onion (Allium cepa) Bulb ResiduesBello,O. SEmikpe,B. OOlaifa,F. E Onion bulb Walnut leaf Clarias gariepinus Growth Morphometry This experiment was conducted to evaluate the effects of walnut (T. conophorum) leaf and onion (A. cepa) bulb on the gut morphometry of Clarias gariepinus towards elucidating its mechanism of growth promotion. Twenty Clarias gariepinus juveniles (7.39±0.29g/ fish) were allocated to nine treatments, with three replicates each. Nine experimental diets were formulated at 40% crude protein representing different level of walnut leaf and onion bulb (0.5%, 1.0%, 1.5% and 2.0%) respectively and the control diet was free from walnut leaf and onion bulb and were fed twice daily at 3 % body weight for 12 weeks. Growth indices like Mean Weight Gain (MWG), Specific Growth Rate (SGR), Feed Intake (FI) and Feed Conversion Ratio (FCR) were measured. Gut morphormetry such as villi length, villi width and cryptal depth were investigated. Data were analyzed using linear regression, descriptive statistics and ANOVA at p= 0.05. Results showed that weight gain and specific growth rate of Clarias gariepinus increased with increasing level of walnut leaf and onion bulb residues. The highest weight gain (53.81±5.85), specific growth rate (1.09±0.11), feed conversion ratio (2.16±0.02) was observed with 1.5% inclusions of walnut leaf residue diets. Although, FCR and SGR were not significantly different (p>0.05) among the treatments, the treated groups had better area of absorption and cryptal depth compared to the control. Treatment with 1.5% inclusion of walnut leaf residue recorded highest villi length and villi width and treatment with 1.5% inclusion of onion bulb recorded highest cryptal depth (30.00±0.00). These results indicate that using walnut leaf and onion bulb as a supplement in plant based diets may be useful in improving feed acceptability and growth performance of cultured C. gariepinus fed low cost, plant based diets and it was concluded that walnut (T. conophorum) leaf at 1.5% inclusion in the diet of Clarias gariepinus improved body weight gain, feed conversion ratio by increasing the absorptive capacity through increased villi length, villi width and cryptal depth.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.30 n.1 20122012-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100045en10.4067/S0717-95022012000100045
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Onion bulb Walnut leaf Clarias gariepinus Growth Morphometry
spellingShingle	Onion bulb Walnut leaf Clarias gariepinus Growth Morphometry Bello,O. S Emikpe,B. O Olaifa,F. E The Body Weight Changes and Gut Morphometry of Clarias gariepinus juveniles on Feeds Supplemented with Walnut (Tetracarpidium conophorum) Leaf and Onion (Allium cepa) Bulb Residues
description	This experiment was conducted to evaluate the effects of walnut (T. conophorum) leaf and onion (A. cepa) bulb on the gut morphometry of Clarias gariepinus towards elucidating its mechanism of growth promotion. Twenty Clarias gariepinus juveniles (7.39±0.29g/ fish) were allocated to nine treatments, with three replicates each. Nine experimental diets were formulated at 40% crude protein representing different level of walnut leaf and onion bulb (0.5%, 1.0%, 1.5% and 2.0%) respectively and the control diet was free from walnut leaf and onion bulb and were fed twice daily at 3 % body weight for 12 weeks. Growth indices like Mean Weight Gain (MWG), Specific Growth Rate (SGR), Feed Intake (FI) and Feed Conversion Ratio (FCR) were measured. Gut morphormetry such as villi length, villi width and cryptal depth were investigated. Data were analyzed using linear regression, descriptive statistics and ANOVA at p= 0.05. Results showed that weight gain and specific growth rate of Clarias gariepinus increased with increasing level of walnut leaf and onion bulb residues. The highest weight gain (53.81±5.85), specific growth rate (1.09±0.11), feed conversion ratio (2.16±0.02) was observed with 1.5% inclusions of walnut leaf residue diets. Although, FCR and SGR were not significantly different (p>0.05) among the treatments, the treated groups had better area of absorption and cryptal depth compared to the control. Treatment with 1.5% inclusion of walnut leaf residue recorded highest villi length and villi width and treatment with 1.5% inclusion of onion bulb recorded highest cryptal depth (30.00±0.00). These results indicate that using walnut leaf and onion bulb as a supplement in plant based diets may be useful in improving feed acceptability and growth performance of cultured C. gariepinus fed low cost, plant based diets and it was concluded that walnut (T. conophorum) leaf at 1.5% inclusion in the diet of Clarias gariepinus improved body weight gain, feed conversion ratio by increasing the absorptive capacity through increased villi length, villi width and cryptal depth.
author	Bello,O. S Emikpe,B. O Olaifa,F. E
author_facet	Bello,O. S Emikpe,B. O Olaifa,F. E
author_sort	Bello,O. S
title	The Body Weight Changes and Gut Morphometry of Clarias gariepinus juveniles on Feeds Supplemented with Walnut (Tetracarpidium conophorum) Leaf and Onion (Allium cepa) Bulb Residues
title_short	The Body Weight Changes and Gut Morphometry of Clarias gariepinus juveniles on Feeds Supplemented with Walnut (Tetracarpidium conophorum) Leaf and Onion (Allium cepa) Bulb Residues
title_full	The Body Weight Changes and Gut Morphometry of Clarias gariepinus juveniles on Feeds Supplemented with Walnut (Tetracarpidium conophorum) Leaf and Onion (Allium cepa) Bulb Residues
title_fullStr	The Body Weight Changes and Gut Morphometry of Clarias gariepinus juveniles on Feeds Supplemented with Walnut (Tetracarpidium conophorum) Leaf and Onion (Allium cepa) Bulb Residues
title_full_unstemmed	The Body Weight Changes and Gut Morphometry of Clarias gariepinus juveniles on Feeds Supplemented with Walnut (Tetracarpidium conophorum) Leaf and Onion (Allium cepa) Bulb Residues
title_sort	body weight changes and gut morphometry of clarias gariepinus juveniles on feeds supplemented with walnut (tetracarpidium conophorum) leaf and onion (allium cepa) bulb residues
publisher	Sociedad Chilena de Anatomía
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100045
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The Body Weight Changes and Gut Morphometry of Clarias gariepinus juveniles on Feeds Supplemented with Walnut (Tetracarpidium conophorum) Leaf and Onion (Allium cepa) Bulb Residues

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