International Science Community Association International Research Journal of Biological Sciences 2278-3202 8 8 2019 08 10 Variation of the dry matter rates in the vegetations grazed by Camelus dromedarius in two regions of Biskra Governorate, Algeria: nutritional and production consequences 14 19 EN S. Ramya 1 Department of Botany, Queen Mary′s College, Chennai-600 004, India N. PadmaPriya 2 Department of Botany, Queen Mary′s College, Chennai-600 004, India R. Sheela 3 Department of Botany, Queen Mary′s College, Chennai-600 004, India T.V. Poonghuzali 4 Department of Botany, Queen Mary′s College, Chennai-600 004, India T.M. Simon 1 Department of Biological Sciences, University of Chester, UK Mammeri Adel 1 Animals Pathology and Reproduction Control Laboratory (P.A.G.R), Veterinary Institute, University of Constantine 1, El'Khroub-25100, Algeria and Department of Agronomic sciences, University of M\'Sila, M’Sila 028000, Algeria Kayoueche Fatima Zohra1 2 Animals Pathology and Reproduction Control Laboratory (P.A.G.R), Veterinary Institute, University of Constantine 1, El’Khroub-25100, Algeria Benmakhlouf Abdelmalek 3 Animals Pathology and Reproduction Control Laboratory (P.A.G.R), Veterinary Institute, University of Constantine 1, El’Khroub-25100, Algeria > Research Paper 2019 5 8 2019 08 10 This study, carried out in April 2013 on two camelid’s grazing areas in Biskra region, aims to determine the dry matter levels of some vegetations grazed by Camelus dromedarius. For each vegetation species, the parts grazed by the dromedary were harvested by \"Hand Plucking Method\", with 9 plant species for region A and 22 for region B. Laboratory analyzes were carried out according to the recommendations of the standard (AFNOR). Statistical analyzes were performed via SPSS 20 using a Kendall test (p<0,05) in a cross table between the variable (Region) and the variable (Dry matter rate) for 7 pairs of plant species identified simultaneously in both regions A and B. The results showed that the differences between the Dry matter rates are more or less considerable between the different plant species for the same region (A or B). The Kendall test showed no significant correlation between the variable (Region) and the variable (Dry matter rate). This study showed that Dry matter rates varied from one plant species to another, even within a single species. Thus, the daily food intake received by dromedaries in the study area would have a random nutritional value and would not guarantee a constant milk yield or animal health status suitable for the livestock. A determination of the mineral and organic composition of vegetations grazed by dromedary during all seasons, would allow designing a spatiotemporal map of the distribution and nutritional efficiency of the flora grazed by Camelus dromedaries in this region. Copyright@ International Science Community Association