Potential Contribution of Retama raetam (Forssk.) Webb & Berthel as a Forage Shrub in Sinai, Egypt
2013
Barakat, Nasser A. M. | Laudadio, Vito | Cazzato, Eugenio | Tufarelli, Vincenzo
The shortage of forage in arid areas is an important concern and it leads us to explore alternative options as nonconventional feed resources. Among potential forage species, samples of Retama raetam (R. raetam) were collected from six different locations representing four habitat types in two diverse phytogeographical regions in Egypt during the summer and winter seasons. Soil characteristics, growth performance, and nutritional traits of R. raetam were evaluated to assess the potential value of this legume as an alternative forage source in the Mediterranean ecosystem. Data showed that soil texture across the study sites had sandy, loamy, and clayey textures, whereas pH ranged from neutral to alkaline and organic carbon was low at all sites. Growth and production of R. raetam were significantly affected by seasonal variation in rainfall and, based on our study results, this effect was more important than specific site property variations such as soil texture and organic matter contents. Moreover, data indicate that R. raetam had wide ecological amplitude and growth performance as a function of site and season. Nutritional value of R. raetam was high enough to meet the nutrient requirements of several different grazing animals. Comparing the R. raetam nutritional value with those of the other wild plants, it can be concluded that R. raetam has strong potential as forage crop with valuable nutritional quality for browsing animals. Moreover, R. raetam may represent an alternative feedstuff to the conventional forage and a promising substitute fodder in Mediterranean ecosystem.
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