The development of guinea fowl requires a certain amount of feed in terms of quantity, content and presentation depending on the age of the bird—chicks, juveniles and adults—as well as sex and productive purpose, either as breeders or for meat. It is recommended that the feed for breeders should contain sufficient energy and protein—18% protein and 2853 kcal of metabolisable energy—to maintain their vitality and optimum egg production, but without generating fat accumulation. Regarding minerals, it is recommended to monitor calcium, phosphorus and manganese intake, as breeding guinea fowl are very sensitive to deficiencies. For guinea fowl intended for meat production, their diet is mainly determined by their age and the farming system chosen: intensive or extensive. The experimental results obtained with these two production systems determine that, in semi-arid areas, intensive farming is recommended in autumn and winter and extensive farming in spring and summer. A very important conclusion derived from the experiments carried out, related to the presence of Ω-3 in the thighs of the carcasses, is the significant correspondence that appears between the content of this fatty acid and the nature of the feed used (organic, commercial, composed of chickpeas or sunflower).