Chemical composition and forage yield of three Vicia varieties (Vicia spp.) at full blooming stage
Babak Darabighane | Hana Shaikhahmadi | Farshid Fatahnia | Karim Khademi | Ali Mahdavi | Tahereh Rahmati | Arash Azarfar
Mixing nitrogen-stabilizing leguminous forages such as <em>Vicia</em> spp. with livestock feeding systems like farm-pasture or farm-animal systems is one of the best approaches to reserve seasonal feeds, to decrease the load on pasture, and to increase soil fertility. The objective of this study was to determine the chemical compositions and fresh/dry forage yield of three varieties of <em>Vicia</em> spp. (<em>Vicia narbonensis</em>, narbon vetch, accession 2561; <em>Vicia sativa</em>, common vetch, accession 463; <em>Vicia dasycarpa</em>, woolly-pod vetch, accession 2446) at full blooming stage. The plants were grown under the climatic conditions of the province of Lorestan in Western Iran and were harvested at full blooming stage. Fresh and dry forage yields, as well as protein yield, were significantly higher (P<0.05) in narbon vetch (28847, 7366 and 1400 kg per hectare, respectively) than in woolly-pod (24825, 4884 and 1050 kg per hectare, respectively) and common vetch (20727, 6061 and 564 kg per hectare, respectively). Woolly-pod vetch had the highest content of crude protein (21.5%) and ash (12.3%), while common vetch had the highest content of neutral detergent fibre (43.9%). There was no difference in degraded dry matter (DDM) between the <em>Vicia</em> varieties <em>in vitro</em>. Results showed that all the <em>Vicia</em> varieties provide high quality forage for livestock, and can be recommended for cultivation because of their adaptability to the particular conditions of a region.
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