Effect of Variety on the Potential Nutritive Value of Oat Hays

This study was conducted to determine the differences in the chemical composition, in vitro gas production (GP), methane production (CH4), metabolizable energy (ME), and in vitro organic matter digestion (IVOMD) of oat hay varieties commonly used in ruminant feeding (Küçükyayla, Kahraman, Kırklar, ST-4, Yeniceri, Sebat, and Arslanbey). The oat hay varieties in the study were harvested during the flowering period in the 2019-2020 season in Kahramanmaras province. The in vitro findings of this study revealed significant differences among oat hay varieties in terms of their chemical composition, in vitro gas production, methane production, ME and IVOMD (P