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Growth performance, nutrient digestibility and carcass characteristics of growing rabbits fed varying levels of urea-molasses treated maize cob as replacement for wheat offal
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Dietary fibre is of great importance due to its significant role in rabbit nutrition. The increase in cost of conventional dietary fibre sources necessitated search for suitable alternatives. Processing of non-conventional fibrous ingredient is essential due to low digestibility and economically feasible strategies should be employed to enhance its utilisation. In this study, the effect of graded levels of urea-molasses treated maize cobs (UMTMC) as replacement for wheat offal in diet of rabbits wasinvestigated. A total of 45 rabbits of about 42 ± 1d old were used to investigate the growth performance, nutrient digestibility and carcass characteristics. Rabbits were allotted into five dietary treatments of nine rabbits segregated into three replicates of three rabbits each. The diets contained UMTMC at five (0, 25, 50, 75 and 100 %) replacement levels. Data obtained were subjected to analysis of variance in a completely randomized design. Daily feed intake (36.37g/rabbit) was reduced (P<0.05) in rabbit fed diets supplemented with 50% UMTMC in comparison to 0% UMTMC (42.40g/rabbit). Nitrogen free extract digestibility decreased (P<0.05) with increasing replacement level of UMTMC. Improved (P<0.05) carcass weight (815.67g/rabbit) and dressing percentage (63.50%) were obtained in rabbits fed diets added with 25% UMTMC when compared to 75 (58.49%) and 100% (57.90%) UMTMC. Organ weight were significantly affected with 50% and 100% UMTMC inclusion level showing increased (P<0.05) liver (3.35g and 3.08g) and kidney (0.78g and 0.94g) weight. It was concluded that inclusion of 25, 75 and 100% UMTMC did not adversely affect carcass parameters instead, the inclusion of 50% UMTMC improved growth performance and carcass characteristics.
La fibre alimentaire revêt une grande importance due à son rôle important dans la nutrition de lapin. L'augmentation du coût des sources de fibres alimentaires conventionnelles nécessitait une recherche de solutions appropriées. Le traitement de l'ingrédient fibreux nonconventionnel est essentiel en raison de la digestibilité faible et des stratégies économiquement réalisables devraient être utilisées pour améliorer son utilisation. Dans cet étude, l'effet des niveaux de grade d'urérés-mélasse traités cobs de maïs traités (UMTCM) est remplacé par le remplacement du blé dans le régime alimentaire des lapins. Au total, 45 lapins d'environ 42 ± 1d ont été utilisés pour enquêter sur la performance de la croissance, la digestibilité des nutriments et les caractéristiques de la carcasse. Des lapins ont été attribués à cinq traitements diététiques de neuf lapins séparés dans trois répliques de trois lapins chacun. Les régimes contenaient UMTCM à cinq niveaux de remplacement (0, 25, 50, 75 et 100%). Les données obtenues ont été soumises à une analyse de la variance dans une conception complètement randomisée. L'apport quotidien des aliments pour animaux (36,37 g / lapin) a été réduit (p <0,05) dans des régimes alimentés par lapin complétés avec 50% UMTCM par rapport à 0% UMTCM (42,40 g / lapin). La digestibilité d'extrait sans azote a diminué (p <0,05) avec un niveau de remplacement croissant de UMTCM. Le poids de la carcasse amélioré (P<0,05) (815,67 g / lapin) et le pourcentage de dressing (63,50%) ont été obtenus chez la Réinitialisation nourri de lapins ajouté avec 25% de UMTCM, contre 75 (58,49%) et 100% (57,90%) UMTCM. Le poids des organes a été significativement affecté à 50% et à 100% de niveau d'inclusion UMTCM montrant une augmentation du foie accrue (p <0,05) (3,35 g et 3,08 g) et du poids du rein (0,78 g et de 0,94 g). Il a été conclu que l'inclusion de 25, 75 et 100% UMTCM n'avait aucune incidence négative sur les paramètres de la carcasse, l'inclusion de 50% UMTCM améliorée les performances de croissance et les caractéristiques de la carcasse.
Nigerian Society for Animal Production (NSAP)
Title: Growth performance, nutrient digestibility and carcass characteristics of growing rabbits fed varying levels of urea-molasses treated maize cob as replacement for wheat offal
Description:
Dietary fibre is of great importance due to its significant role in rabbit nutrition.
The increase in cost of conventional dietary fibre sources necessitated search for suitable alternatives.
Processing of non-conventional fibrous ingredient is essential due to low digestibility and economically feasible strategies should be employed to enhance its utilisation.
In this study, the effect of graded levels of urea-molasses treated maize cobs (UMTMC) as replacement for wheat offal in diet of rabbits wasinvestigated.
A total of 45 rabbits of about 42 ± 1d old were used to investigate the growth performance, nutrient digestibility and carcass characteristics.
Rabbits were allotted into five dietary treatments of nine rabbits segregated into three replicates of three rabbits each.
The diets contained UMTMC at five (0, 25, 50, 75 and 100 %) replacement levels.
Data obtained were subjected to analysis of variance in a completely randomized design.
Daily feed intake (36.
37g/rabbit) was reduced (P<0.
05) in rabbit fed diets supplemented with 50% UMTMC in comparison to 0% UMTMC (42.
40g/rabbit).
Nitrogen free extract digestibility decreased (P<0.
05) with increasing replacement level of UMTMC.
Improved (P<0.
05) carcass weight (815.
67g/rabbit) and dressing percentage (63.
50%) were obtained in rabbits fed diets added with 25% UMTMC when compared to 75 (58.
49%) and 100% (57.
90%) UMTMC.
Organ weight were significantly affected with 50% and 100% UMTMC inclusion level showing increased (P<0.
05) liver (3.
35g and 3.
08g) and kidney (0.
78g and 0.
94g) weight.
It was concluded that inclusion of 25, 75 and 100% UMTMC did not adversely affect carcass parameters instead, the inclusion of 50% UMTMC improved growth performance and carcass characteristics.
La fibre alimentaire revêt une grande importance due à son rôle important dans la nutrition de lapin.
L'augmentation du coût des sources de fibres alimentaires conventionnelles nécessitait une recherche de solutions appropriées.
Le traitement de l'ingrédient fibreux nonconventionnel est essentiel en raison de la digestibilité faible et des stratégies économiquement réalisables devraient être utilisées pour améliorer son utilisation.
Dans cet étude, l'effet des niveaux de grade d'urérés-mélasse traités cobs de maïs traités (UMTCM) est remplacé par le remplacement du blé dans le régime alimentaire des lapins.
Au total, 45 lapins d'environ 42 ± 1d ont été utilisés pour enquêter sur la performance de la croissance, la digestibilité des nutriments et les caractéristiques de la carcasse.
Des lapins ont été attribués à cinq traitements diététiques de neuf lapins séparés dans trois répliques de trois lapins chacun.
Les régimes contenaient UMTCM à cinq niveaux de remplacement (0, 25, 50, 75 et 100%).
Les données obtenues ont été soumises à une analyse de la variance dans une conception complètement randomisée.
L'apport quotidien des aliments pour animaux (36,37 g / lapin) a été réduit (p <0,05) dans des régimes alimentés par lapin complétés avec 50% UMTCM par rapport à 0% UMTCM (42,40 g / lapin).
La digestibilité d'extrait sans azote a diminué (p <0,05) avec un niveau de remplacement croissant de UMTCM.
Le poids de la carcasse amélioré (P<0,05) (815,67 g / lapin) et le pourcentage de dressing (63,50%) ont été obtenus chez la Réinitialisation nourri de lapins ajouté avec 25% de UMTCM, contre 75 (58,49%) et 100% (57,90%) UMTCM.
Le poids des organes a été significativement affecté à 50% et à 100% de niveau d'inclusion UMTCM montrant une augmentation du foie accrue (p <0,05) (3,35 g et 3,08 g) et du poids du rein (0,78 g et de 0,94 g).
Il a été conclu que l'inclusion de 25, 75 et 100% UMTCM n'avait aucune incidence négative sur les paramètres de la carcasse, l'inclusion de 50% UMTCM améliorée les performances de croissance et les caractéristiques de la carcasse.
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