Effects of incorporating agro-industrial by-products into diet of New Zealand rabbits: case of rebus of date and apricot kernel meal
2017
Mennani, Achour | Arbouche, Rafik | Arbouche, Yasmine | Montaigne, Etienne | Arbouche, Fodil | Arbouche, Halima Saâdia | Department of Agronomy, Faculty of Science of Nature and Life ; University of El-Tarf | Department of Agronomy, Faculty of Science of Nature and Life ; University of Ghardaia [Algeria] = Université de Ghardaïa [Algérie] = جامعة غرداية (ar) | Department of Agronomy, Faculty of Science of Nature and Life ; Université Ferhat-Abbas Sétif 1 [Sétif] (UFAS1) | Marchés, Organisations, Institutions et Stratégies d'Acteurs (UMR MOISA) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Centre International de Hautes Etudes Agronomiques Méditerranéennes - Institut Agronomique Méditerranéen de Montpellier (CIHEAM-IAMM) ; Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro) | Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)
The aim of this study was to determine the effects of incorporating the by-products complex of date and apricot on the fattening performance of the New Zealand breed of rabbits, to reduce the economic costs of the food formula. The change in weight from day 35 to 77 and the average daily gain are not significantly different, regardless of the diet. The pH and water content are proportional to the substitution rates (6.4-6.6% and 66.5-68.8%). Meat protein levels increased significantly, in particular for the 10% and 30% groups (+8.1% and 6%) while the fat and mineral content levels decreased significantly, in particular for the 30% group displaying −16% and −17%, respectively. Incorporation of dates and apricot kernel meal into the ration of rabbits reduces the cost of the kilogram of food produced of −9%, with an opportunity cost of 165 Algerian dinars (DZD). The date rebus/apricot kernel meal complex can be used as an alternative to the corn/soybean meal complex at substitution rates of up to 30% without adverse effects on growth rates, feed contribution, or slaughter yield. It improves the chemical composition of the meat and reduces the cost price of the quintal of feed produced.
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