Volume 13, Issue 4 (12-2019)                   مرتع 2019, 13(4): 610-620 | Back to browse issues page

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Hosseini H, Heshmati G, Mirza M, Karami P. Effect of Growth Stage and Altitude Gradient on Forage Quality Indices of Ferula haussknechtii H Wolhff ex Rech and its Multiple Use Ability Evaluation (Case study: Saral, Kurdistan). مرتع 2019; 13 (4) :610-620
URL: http://rangelandsrm.ir/article-1-822-en.html
Department of Range Management, Faculty of Range and Watershed Management, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan
Abstract:   (3542 Views)
Determination of forage quality at different phenological stages is one of the most important issues for proper range management. This research was conducted to determine and compare the nutritional values of Ferula hausskenchtii species in three phenological stages namely, vegetative, flowering and seedling. Three altitude above sea levels (1850, 2250 and 2650 meters) and the period before and after extraction were the other treatment applied  in Saral rangelands of Kurdistan province. The aerial parts of Ferula hausskenchtii was harvested, dried and powdered in three phonological stages with three replications. Forage quality indices such as: CP, ADF, NDF, DMD, ash, CF, WSC, and ME were analyzed using NIR method. Data were analyzed using a completely randomized design by R software. The results showed that forage quality of this species varies in different vegetative stages, elevation classes and time of essence extraction. As the age of Ferula hausskenchtii increases, the amount of CP, DMD, ASH and ME indices decrease and the amount of ADF, WSC, NDF and CF indices increases. The results also suggest a positive relation between elevation and the amount of CP, DMD, ASH and ME indices. Opposite result was recorded for the relation between the altitude and CF index. Studied species has a maximum crude protein and minimum crude fiber at vegetative stage which is good enough for livestock requirement, Therefore, it is better to harvest this species at this vegetative stage
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Type of Study: Research | Subject: Special
Received: 2020/01/17 | Accepted: 2020/01/17 | Published: 2020/01/17

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