Abstract
A 56 d study was conducted to determine the effects of dietary inclusion of Moringa (Moringa oleifera) leafmeal, Neem (Azadirachta indica) leaf meal and Bitter leaf (Vernonia amygdalina) meal on the growth performance and apparent nutrient digestibility of broiler chickens. Four hundred (400) 1- d old unsexed Ross 308 broiler chickens were randomly allotted to five diets consisting either a basal diet without supplement (negative control) or basal diet with 5mg/kg commercial antibiotic (positive control) or basal diet with 5mg/kg phytobiotics (moringa leaf meal (MLM),neem leaf meal (NLM) and bitter leaf meal (BLM) for 1-56 d. Each dietary treatment consisted of 4 replicates of 20 birds with a replicate being an experimental unit. The phyto-additives were assayed for chemical compositions. The phytochemical screening revealed the presence of tannin, alkaloids, flavonoid, Phenol and Saponin. Birds fed diets supplemented with commercial antibiotic and MLM were heavier (p<0.05) while those on control and NLM had poorest weight at 28 d and 56 d. MLM and BLM diets were more consumed (p<0.05) by the starter birds. However, feed consumption was not influenced by the diets at the finisher phase. Birds on phyto-additives had higher percentage (p<0.05) of survival compared to those control and antibiotics at 28 and 56 d. Best feed:gain was achieved when the diet was supplemented with commercial antibiotics at 28 d and antibiotic and MLM at 56 d. The digestibility of dry matter (86.96%) and ash (75.34%) were higher (p<0.05) in birds given feed containing antibiotic improved (P<0.05) digestibility of crude protein and ether was observed in Birds fed diet containing commercial antibiotics.Keywords: Broiler chickens, phyto-additives, and performance characteristic Caracteristiques de performance et digestibilite apparente des nutriments des poulets de chair supplementes en phytoadditifsUne etude de 56 jours a ete realisee dans le but de determiner les effets de l’inclusion alimentaire de la farine de feuilles de Moringa (Moringa oleifera), de la farine de feuilles de Neem (Azadirachta indica) etde la feuille amere (Vernonia amygdalina) sur la croissance et la digestibilite apparente des poulets de chair. Quatre cents (400) poulets de chair Ross 308s des deux sexes, âges d’un (1) jour, ont ete aleatoirement repartis a cinq regimes comprenant soit un regime de base sans supplement (temoin negatif), soit un regime de base avec 5 mg / kg d’antibiotique commercial (temoin positif) ou un regime de base avec 5 mg / kg de phytobiotiques (farine de feuilles de moringa - MLM, farine de feuilles de neem –NLM- et farine defeuilles ameres -BLM) pendant 1 a 56 jours. Chaque traitement dietetique consistait en 4 repetitions de 20 oiseaux, une repetition etant une unite experimentale. Les phyto-additifs ont ete etudies pour determiner leurs compositions chimiques. Le depistage phytochimique a revele la presence de tanins, d’alcaloides, de flavonoides, de phenol et de saponine. Les oiseaux recevant des supplements d’antibiotiques commerciaux et de MLM etaient plus lourds (p <0,05) que ceux soumis au regime temoin, et ceux recevant NLM avaient le poids le plus faible aux jours 28 et 56. Les regimes MLM et BLM etaient plus consommes (p <0,05) par les jeunes oiseaux. Cependant, la consommation d’aliments n’a pas ete influencee par les regimes en phase de finition. Les oiseaux recevant des phyto-additifs avaient un pourcentage de survie plus eleve (p <0,05) que les temoins et les antibiotiques a 28 et 56 jours. Meilleur aliment : gain obtenu lorsque le regime etait complete avec des antibiotiques commerciaux au jour 28 et des antibiotiques au jour 56. La digestibilite de la matiere seche (86,96%) et des cendres (75,34%) etait plus elevee (p <0,05) chez les oiseaux recevant desaliments contenant des antibiotiques ameliores (P <0,05), la digestibilite de la proteine brute et de l’ether a ete observee chez les oiseaux recevant des antibiotiques commerciaux. Mots-cles : poulets de chair, phyto-additifs, et caracteristiques de performance
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More From: Bulletin of Animal Health and Production in Africa
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