Moroccan Journal of Agricultural and Veterinary Sciences

Vol. 10 No. 1 (2022): (March 2022)
Animal Production and Health

Nutritional characterization of multi-nutritional blocks based on olive pomace

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  • Moudhaffar SAIDANI,
  • Hamadi ROUISSI,
  • Amani BAHRI,
  • Marouene AMRAOUI,
  • Tarek LARBI
Moudhaffar SAIDANI Université de Carthage, Département des Productions Animales, École Supérieure d’Agriculture de Mateur, Tunisie
Hamadi ROUISSI Université de Carthage, Département des Productions Animales, École Supérieure d’Agriculture de Mateur, Tunisie
Amani BAHRI Université de Carthage, Département des Productions Animales, École Supérieure d’Agriculture de Mateur, Tunisie
Marouene AMRAOUI Université de Carthage, Département des Productions Animales, École Supérieure d’Agriculture de Mateur, Tunisie
Tarek LARBI Université de Carthage, Département des Productions Animales, École Supérieure d’Agriculture de Mateur, Tunisie

Published 2022-03-18

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Abstract

Olive cake-feed blocks were manually made to assess their nutritional properties. They were prepared using: olive cake (32%), processed barley (25%), wheat bran (15%), soybean meal (10%), salt (5%), vitamin and mineral premix (3%), and quicklime (10%). No secondary metabolites were detected in our handmade feed blocks nor any antioxydative activity. Organic matter digestibility is low (49.2%) albeit the level of metabolizable energy is considerable (7 MJ/kg DM). Gas production kinetics were measured in vitro for 48 h in order to simulate ruminal gas production following feed block consumption. Olive cake-feed blocks may substitute expensive concentrates and reduce methane emission by ruminants.

Keywords: Olive cake-feed blocks, Chemical composition, Gas production.

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References