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Information Journal Paper

Title

IDENTIFICATION OF FORAGE ASTRAGALUS IN SUMMER RANGELANDS OF GOLESTAN PROVINCE

Pages

  47-55

Abstract

ASTRAGALUS species are classified as the most important FORAGE species of GOLESTAN PROVINCEs, which are rehabilitation of rangelands hence identification and selection of suitable ASTRAGALUS in rangelands is necessary. In this study selection of FORAGE ASTRAGALUS as perennial, without spiny, palatability, optimization of quantity and quality were considered. In order to measurement of vegetation, some factors such as; Production, canopy cover and density were used, meanwhile to determining FORAGE quality some factors such as; Crude protein, crude fiber, acid detergent fiber, dry matter digestibility and metabolic energy with application of AOAC (1990) in livestock lab of Golestan research center of Agriculture and Natural Resources were applied. The tate of platability of FORAGE species used observation of livestock grazing in ranges, survey from expert persons, also reminder of rested plant. All statistical work on data including ANOVA and comparison of means carried out via SPSS software. This study resulted in among SUMMER RANGELANDS of GOLESTAN PROVINCE, plant species of ASTRAGALUS podolobus, ASTRAGALUS jolderensis and ASTRAGALUS onobrychis. With the best quantitative factors including; production (117 to 413 kg/ha), crude protein (14 to18.5 percent in flowering period), metabolic energy (6.7 to 7.9 MJ/kg) also had value of high palatability. Therefore with regards to deficiency and shortage of FORAGE in SUMMER RANGELANDS of GOLESTAN PROVINCE, this species are offered to increasing quality and quantity of rangelands.

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