The current study compared the growth performance, carcass and meat quality effects of feeding 150 g/kg DM of dried citrus pulp (DCP) or grape pomace (DGP) as alternative dietary fibre sources to 7 months-old Angus steers for 90d. Twenty-four steers were assigned to three dietary treatments (8 steers/treatment) in completely randomised design. Each steer was treated as an experimental unit. Feeding the DGP and DCP diets resulted in greater (P ≤ 0.05) average daily gain and live weight compared to the control diet. Steers fed the DGP diet had higher (P ≤ 0.05) dry matter intake, warm and cold carcass weights than those fed the DCP and control diets. Shear force and income over feed costs were greatest for the DGP diet followed by the DCP and control diets (P ≤ 0.05). Current findings suggest DGP is a better fibre source than DCP resulting in enhanced growth performance, carcass attributes and economic viability of feedlot steers.

当前的研究比较了饲喂150 g / kg DM的干柑橘果肉（DCP）或葡萄渣（DGP）作为替代膳食纤维来源对7个月大的安格斯ste牛90d的生长性能，car体和肉质的影响。在完全随机设计中，将二十四头牛分配给三种饮食疗法（八头牛/处理）。每个转向都被当作一个实验单位。饲喂DGP和DCP饮食造成了较大的（P  ≤0.05），平均日增重和活重比对照饮食。斯蒂尔斯喂DGP饮食有较高（P  ≤0.05）干物质采食量，冷暖胴体重比饲喂DCP和控制饮食。DGP饮食的剪力和收入超过饲料成本最高，其次是DCP和对照饮食（P ≤0.05）。目前的发现表明，DGP比DCP是更好的纤维来源，可提高生长性能，car体特性和育肥场ste牛的经济生存能力。