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Considering to weak vegetation in areas around the Hamun Lake zone, insufficient nutrient consumption can be an important factors for low performance of Sistani cattle. Present research conducted to assess mineral status of Sistani cows consuming natural forage species of this region. In late spring season, within four chosen Sistan plain areas including Saberi, Lorg-Bagh, Kuh-Khaje and Zahak from six major forage species consumed by Sistani cows including Phragmetes australis, Bolboschoenus glaucus, Aeluropus lagopoides, Tamarix spp, Cyperus longus and Setaria sp were sampled randomly with three replicates of five individual plants each and replicate samples with the same species and area were combined together and final 12 samples were obtained and after air-drying and grinding were analysed for nutritional macro- and micro-minerals by atomic absorption system. Average macro-mineral concentrations of calcium, phosphorus, magnesium, sodium, potassium, chorine, sulfur and micro-minerals of iron, copper, manganese, molybdenum, cobalt and selenium were 17.37, 0.78, 6.85, 15.40, 3.13, 14.22, 9.49 g/kg and 820.2, 20.0, 72.8, 93.2, 0.43, 0.21 and 0.18 mg/kg for sampling areas and 12.14, 0.77, 6.35, 17.85, 3.59, 14.40, 5.01 g/kg and 1106.0, 18.5, 64.8, 122.4, 0.32, 0.19, and 0.16 mg/kg for forage species, respectively. Comparing forage plant mineral concentrations of different areas with late gestation and early lactation requirements showed a significant phosphorus deficiency and bordered deficiencies of molybden, manganese and sulfur. Chlorine in Saberi and Kuh-Khaje, calcium, magnesium and sulfur in Kuh-Khaje, copper, zinc and cobalt in Zahak and iron in Lorg-Bagh had higher levels. Calcium, magnesium and sulfur of Tamarix spp, potassium and sodium of Setaria sp, iron of Aeluropus lagopoides and copper, zinc, manganese and molybdenum of Phragmetes australis had higher levels. Some mineral excesses including calcium, magnesium and sulfur in Tamarix spp, potassium in Setaria sp and iron in 83 percent of forage species were observed. The results indicated that Sistani cattle grazing forage around Hamun Lake zone were exposed to phosphorus deficiency and iron excess can lead to negative effect on metabilsm of energy, protein and some mineral such as copper, zinc and cobalt.Key words: assessment, mineral status, natural forage, Sistani cattle
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