Effect of addition of four pasture grasses (Matricaria chamomilla, Urtica dioica, Gundelia tournefortii and Taraxacum officinale) on in vitro digestibility and methane production of oat hay

Each of four pasture grasses (Matricaria chamomila, Urtica dioica, Gundelia tournefortii and Taraxacum officinal), were added separately to oat hay (basal diet) at 15:85 ratio and in vitro digestibilityand gas production were determined.Results showed the highest dry matter and organic matter digestibility (694 and 700 g per kg DM) was obtained by Matricaria chamomile. Methane reduction potential (MRP) ranged 13.01 to 24.9%, which was the highest in terms of Matricaria chamomilla treatment (24.9%). Based on these results, it can be concluded that Matricaria chamomillamay be positively affect digestibility and MRP.