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首页> 外文会议>Liquid feed symposium >Comparison of Dry and Liquid Protein Supplements Fed to Stocker Cattle Consuming Low-Quality Native Grass: Performance and Digestibility
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Comparison of Dry and Liquid Protein Supplements Fed to Stocker Cattle Consuming Low-Quality Native Grass: Performance and Digestibility

机译：送给储存低质量天然草的储料养液的干燥和液体蛋白质补充剂的比较：性能和消化

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Two studies were conducted to determine the effect of differing amounts of degradable intake protein (DIP) from liquid or dry supplements on performance and digestibility by stocker cattle consuming low-quality forage. Supplements were a liquid feedformulated to provide .72 lb/d of DIP (LIQ1), a liquid feed formulated to provide .44 lb/d of DIP (LIQ2), or a cottonseed meal/soybean meal blend to provide .44 lb/d of DIP (DRY). In a metabolism study, supplemented cattle had greater (P < .05) hay OM intakes and fecal OM outputs than cattle not supplemented. Furthermore, cattle supplemented with LIQ2 had greater (P < .05) hay OM intakes and fecal OM outputs than cattle supplemented with LIQ1. During an individual feeding study there were no differences (P > .10) in initial and final body weights between treatments. Across the supplemental feeding period, average intake was only 41 and 82 percent of feed offered for LIQ1 and LIQ2, respectively. Total gain and ADG were greater (P < .05) for supplemented steers than for steers not supplemented, and steers receiving DRY had greater (P < .05) total gains and ADG than steers receiving liquid. There was no difference (P > .05) between LIQ1 and LIQ2 for total gain or ADG. These data suggest that intake of liquid supplements limited performance of grazing cattle in this experiment. Also, different amounts and/or types of protein may influence digestion and performance.
机译：进行两项研究以确定液体或干燥补充剂对饮用低质量饲料的液体或干燥补充剂对液体或干燥补充剂的影响。补充剂是提供的液体，以提供.72磅/ d浸（LiQ1），配制的液体饲料，提供.44磅/ d浸（Liq2），或棉籽粕/大豆膳食混合提供.44磅/ d浸（干）。在新陈代谢的研究中，补充牛的牛具有更大（p <.05）干草OM进气和粪便OM输出而不是补充的牛。此外，补充有LIQ2的牛具有更大的（p <.05）干草OM摄入量和粪便OM输出而不是补充有LIQ1的牛。在单独的饲养研究中，治疗之间的初始和最终体重在初始和最终体重中没有差异（p> .10）。在辅助喂养期间，平均摄入量仅为LiQ1和LiQ2提供的41和82％的饲料。对于不补充的阉牛来说，总增益和ADG更大（p <.05），而不是不补充的带状者，并且接受干燥的操纵器比接受液体的操纵器更大（p <.05）总增益和ADG。 LIQ1和LIQ2之间没有区别（p> .05），用于总增益或ADG。这些数据表明，在本实验中摄入液体补充剂的放牧牛的性能有限。此外，不同的量和/或类型的蛋白质可能影响消化和性能。

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