Effects of dietary fat:carbohydrate ratio on nutrient digestibility, serum parameters, and production performance in male silver foxes (Vulpes vulpes) during the winter fur-growing period
Abstract:Forty male silver foxes were used to investigate the effects of increasing dietary fat:carbohydrate (F:C) ratio {34:34, 41:28, 48:22, and 55:17 [metabolizable energy basis (ME)]} on growth performance, nutrient digestibility, serum parameters, and pelt quality during the winter fur-growing period. The results showed that average daily feed intake, average daily ME intake, average daily gain (ADG), feed efficiency, and protein digestibility were improved (P < 0.01 or P < 0.05) when dietary F:C ratio ranging fro… Show more
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