||Abstract 1. An experiment was carried out with 120 helmeted guinea fowls during one year in
Parakou (Benin). Feed intake, ingredient and chemical composition, along with the nutritional
adequacy of scavenging diets were measured during the rainy season (November—February) and dry
season (March—October) in order to propose supplementation strategies. Ingredients found in crops
were identified and allocated into 6 main categories (supplemental feed, seeds, green forages, animal
materials, mineral matter and unidentified materials).
2. Mean dry weights of crop contents were significantly higher in the rainy than in the dry season.
Amounts and proportions of supplemental feed and seeds were not significantly different between
seasons, whereas those of green forage, animal materials and mineral matter were higher in rainy
season. Supplemental feed, especially maize and sorghum, was the largest component of the crop
content in both seasons. The most represented grass seeds were Panicum maximum (rainy season) and
Rottboellia cochinchinensis (dry season).
3. Dietary concentrations of organic matter, non-nitrogen extract and metabolisable energy were
higher in the dry season, while mineral concentrations were higher in the rainy season. There were no
significant differences between the two seasons in dry matter, crude protein or crude fibre.
4. Scavenging provided insufficient nutrients and energy to allow guinea fowls to be productive.
Therefore, more nutritionally balanced supplementary feed would be required during both seasons.