Abstract
The effects of increasing levels of degradable weight and assigned to one of four increasing intake protein (DIP) on intake and digestion of levels of DIP. Each steer was offered brome hay low-quality brome hay were evaluated using 16 at 130% of the average voluntary intake for the ruminally fistulated beef steers. Trends were preceding 5-day period. Supplemental DIP evident for small, positive changes in total intake (sodium caseinate; 91.6% CP, 100% DIP) was and digestion with increasing level of DIP ruminally infused at 7:00 AM, immediately prior supplementation. As a result, total digestible to feeding forage to provide .041, .082, and OM intake (TDOMI) increased with DIP .124% BW/day; controls received none. The supplement-ation but tended to plateau below forage contained 65.4% NDF and 5.9% CP, of the highest supplementation level. which 49% was DIP. DIP was estimated using
Highlights
Sixteen ruminally fistulated beef steers were blocked by weight and assigned to one of four increasing levels of degradable intake protein (DIP)
Trends were evident for small, positive changes in total intake and digestion with increasing level of DIP supplementation
Previous research with low-quality, tallgrass-prairie forage has demonstrated that supplementation with degradable intake protein (DIP) dramatically improves forage intake and utilization
Summary
The effects of increasing levels of degradable intake protein (DIP) on intake and digestion of low-quality brome hay were evaluated using 16 ruminally fistulated beef steers. Trends were evident for small, positive changes in total intake and digestion with increasing level of DIP supplementation. Total digestible OM intake (TDOMI) increased with DIP supplement-ation but tended to plateau below the highest supplementation level
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