The high cost of protein sources, their restricted availability and theunpredictability of their markets, increase the need for alternativesources of protein infish feed. Most published research on the use ofplant protein and/or carbohydrate, as a substitute of SBM, infish feedshas focused on the inclusion of roquette seed meal (Soliman, 2000),Azolla africana(Fasakin et al., 2001),Cassiafistulameal (Adebayo et al.,2004), alfalfa meal (Krichen, 2007) tomato by-product meal (Azaza et al.,2006), ulva meal (Azaza et al., 2008), cottonseed meal (Yue and Zhou, inpress)andwastedatemeal(Azaza et al., in press) in diets for tilapia. Forcatfish diets, other products have been considered, including palmkernel meal (Ng and Chen, 2002), cottonseed meal (Barros et al., 2002)and roquette seed meal (Fagbenro, 2004).Faba beans (Vicia faba, L.) are widely cultivated and extensivelygrown in different parts of the world, in particular, in the Middle East andMediterranean region (Gordillo,1991; Chillo et al., 2008). It contains 25–30% crude protein, 40–50% carbohydrate and 10–15% crude lipid(Macarulla et al., 2001). In addition, recent advances in the geneticimprovement of faba bean varieties have led to the development of ahigh-yielding line and low tannin varieties of greater consideration foruse in domestic animal feeds (Duc et al., 1999; Gutierrez et al., 2004).To our knowledge, little information is available on the use of fababean meal (FBM) infish diets (Grabner and Hofer, 1985; Gaber, 2006).
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