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Published online by Cambridge University Press: 22 November 2017
There is increasing demand for efficient use of animal food by products due to economic and environmental concerns. Agricultural by products such as tomato pomace, citrus pulp and grape pomace (GP) may be substituted advantageously to tackle animal feed shortage. Alipour and Rouzbehan (2006) demonstrated that GP tannins have adverse effects on nutrient utilization and other nutritional parameters in ruminants. Ensiling (Makkar, 2003) and drying (Martin-Garcia and Molina-Alcaide, 2007) can be used as a method of decreasing and inactivation of tannins. The aim of this study was to determine the effects of ensiling and drying on chemical composition, tannin content and improving nutritive value of GP.