Effects of canola leal juncea meal and addition of enzymes on growth performance and carcass composition of female turkeys up to 70 days-of-age - DUMAS - Dépôt Universitaire de Mémoires Après Soutenance Access content directly
Master Thesis Year : 2012

Effects of canola leal juncea meal and addition of enzymes on growth performance and carcass composition of female turkeys up to 70 days-of-age

Jennifer Roux
  • Function : Author

Abstract

Maximum dietary level of modern black-seeded canola (Brassica napus) meal (CM) and yellow-seeded juncea (Brassica juncea) meal (JM) needs to be established for turkeys. No study has yet evaluated the effects of CM or JM, at variables dietary level, an enzymes addition on growth performance and carcass composition of turkeys. This trial evaluated the effects of canola and juncea meal fed at 0, 10, 20, and 30% of the diet with and without Superzyme-OMTM on growth performance and carcass composition of turkeys. The 1152 Hyline Converter female turkey hens were randomly divided into 64 floor pens. Wheat based diets were formulated to contain 0, 10, 20 or 30% CM or JM with or without multicarbohydrase enzymes. Body weight (BW), feed intake (FI) and feed conversion ratio (FCR) were calculated per pen for the four starter (0 to14 days), grower I (15 to 28), grower II (29 to 56) and finisher (57 to 70) phases. Two carcasses per pen were analyzed (dry matter, ash, crude protein and crude fat). The experimental design was a 2×4×2 factorial (meals×levels×enzymes). There was an increase in FI and deterioration in FCR (p ≤0.05) with CM, perhaps due to lower metabolisable energy in CM than JM or level of glucosinolate higher in JM. There were no effects of level on growth performance of turkeys. There was improvement BW with addition of enzymes during the four phases (p ≤0.05). Globally, no effect on carcass composition occured.CM and JM included up to 30% in wheat based diets produced excellent growth performance in turkeys. The 30% CM or JM diets were more profitable than 0% diets.
Le niveau d'incorporation du tourteau de canola (CM) à graines noires (Brassica napus) et de juncea (JM) à graines jaunes (Brassica juncea) dans l'alimentation des dindes a besoin d'être revue. Aucune étude n'a évalué l'effet du CM et JM à différent niveaux d'incorporation ainsi que, l'ajout d'enzyme sur les performances zootechniques et la composition en carcasse des dindes. 1152 Hyline Converter dindes ont été placées dans 64 cages. L'alimentation, basé sur du blé contenait 0, 10, 20, et 30% CM et JM avec ou sans supplémentation en enzymes. Le poids vif (PV), la consommation quotidienne (CQ) et l'indice de consommation (IC) ont été calculés pendant les 4 phases démarrage (0 à 14 j), croissance I (15 à 28 j), croissance II (29 à 56 j) and finition (57 à 70 j) d'élevage. Deux carcasses par cage ont été analysées (matière sèche, organique quantité de protéines et grasses). Le modèle statistique comprenait 2×4×2 facteurs expérimentaux (repas× niveau incorporation× enzyme). Il y a une augmentation de CQ et une détérioration de l'IC (p ≤0.05) avec CM, probablement due à sa valeur énergétique plus faible que JM, ou du niveau plus élevé de glucosinolate dans JM. Il n'y a aucun effet des niveaux d'incorporation sur les performances zootechniques des dindes. Et il y a une amélioration du PV avec la supplémentation en enzymes (p ≤0.05). Globalement, il n'y a aucun effet sur la composition en carcasse. CM et JM incorporé jusqu'à 30% dans l'alimentation induisent de bons résultats zootechniques pour les dindes. Enfin, l'inclusion de 30% CM ou JM sont plus avantageux économiquement.
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dumas-00801287 , version 1 (15-03-2013)

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  • HAL Id : dumas-00801287 , version 1

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Jennifer Roux. Effects of canola leal juncea meal and addition of enzymes on growth performance and carcass composition of female turkeys up to 70 days-of-age. Agricultural sciences. 2012. ⟨dumas-00801287⟩
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