Tizanidine does not affect the linear relation of stretch duration to the long latency M2 response of m. flexor carpi radialis

The long latency M2 electromyographic response of a suddenly stretched active muscle is stretch duration dependent of which the nature is unclear. We investigated the influence of the group II afferent blocker tizanidine on M2 response characteristics of the m. flexor carpi radialis (FCR). M2 response magnitude and eliciting probability in a group of subjects receiving 4 mg of tizanidine orally were found to be significantly depressed by tizanidine while tizanidine did not affect the significant linear relation of the M2 response to stretch duration. The effect of tizanidine on the M2 response of FCR is supportive of a group II afferent contribution to a compound response of which the stretch duration dependency originates from a different mechanism, e.g., rebound Ia firing

Effect of Pelleted Feed Products and Bambermycins on Performance When Fed to Cattle Grazing Residue

Steer calves grazing non- irrigated corn residue were supplemented with a corn residue and by- product pellet at 0.3, 0.7, or 1.1% of BW. Th e, pellet was formulated to deliver either 0 or 10 mg/steer daily of bambermycins (Gainpro). Th ere was no interaction between bambermycins inclusion and level of supplementation. Likewise, there was no effect of bambermycins on ending BW or ADG. As level of supplement increased, both ending BW and ADG increased linearly

Effects of Substituting Wet Distillers Grains with Solubles in a Wet Corn Gluten Feed-Based Diet on Finishing Performance

A finishing study evaluated feeding a wet corn gluten feed (WCGF) ration containing no high moisture corn with varying inclusion levels of wet distillers grains plus solubles (WDGS), as well as a control diet containing 20% WDGS and 20% WCGF. Wet distillers grains with solubles replaced WCGF at 10%, 20%, 30% and 40% of the diet. As WDGS replaced WCGF, feed-to-gain ratio (F:G) decreased linearly. However, two steers developed polioencephalomalacia on the treatment that contained 40% WDGS. Steers fed the control diet containing 40% byproduct had greater average daily gain (ADG) and lower F:G than the average of all WCGF:WDGS combination diets. Byproduct feed-based finishing rations can be fed without corn, but performance may be slightly depressed

Evaluation of a New Single Implant Strategy vs. Two Common Implant Strategies in Beef Finishing Steers

A finishing trial was conducted to compare the response to three implant strategies on performance and carcasscharacteristics of feedlot steers: 1) ComponentTE-IS with Tylan followed with Component TE-S with Tylan (TE-IS/S); 2) Component TE-200 with Tylan (TE-200); or 3) Revalor XS (Rev-XS) single implant. Final BW, DMI and ADG were unaffected (P \u3e 0.05) by implant strategy. Steers on the TE-IS/ S treatment had a lower (P \u3c 0.01) feed:gain ratio (F:G) compared to those on the Rev-XS and TE-200 treatments. F:G calculated on a live basis was improved (P \u3c 0.05) for reimplantedcattle compared to those on the TE-200 treatment; F:G for the Rev-XSwas intermediate. No differences (P \u3e 0.05) were observed for HCW, 12th rib fat, percentage USDA Choice and calculated USDA yield grade among treatments. Cattle implanted with Rev-XS had greater (P \u3c 0.05) marbling scores than those implanted with TE-IS/S. Carcasses from TE-IS/S implanted steers presented larger (P = 0.03) longissimus muscle areas than both the TE-200 and Rev-XS treatment groups. These results suggest that F:G was improved with reimplanting

Effect of Corn Processing on Feedlot Steers Fed Sugarbeet Pulp

Impact of feeding three levels of beet pulp (0, 10, 20%, DM basis) with either dry-rolled corn (DRC) or steamflaked corn (SFC) in feedlot rations was evaluated. Final BW, DMI, and ADG decreased linearly as beet pulp replaced corn in the diet. Beet pulp linearly decreased HCW, 12th rib fat, and yield grade. Corn processing had no impact on carcass characteristics. Feeding SFC improved F:G, compared to feeding DRC. The inclusion of beet pulp in the diet did not impact F:G, however, because of the decrease of both DMI and ADG

Comparison of Revalor XS to a Revalor IS / Revalor S Implant Strategy in Finishing Steers

A commercial feedlot study compared effects of Revalor IS/Revalor S (RevIS-S) implant strategy to a Revalor XS (RevX) single implant strategy on performance and carcass characteristics of feedlot cattle. There were no differences (P \u3e 0.90) in DMI, final BW, ADG, or F:G. Hot carcass weight, marbling score, 12th rib fat, LM area and calculated yield grade also were unaffected (P \u3e 0.10) by implant strategy. The RevX treatment resulted in a greater (P \u3c 0.01) percentage of Choice carcasses than RevIS-S. Cattle receiving Revalor XS performed similar to cattle implanted with RevIS-S using a traditional reimplant program

Wet Distillers Grains and Ratios of Steam-Flaked and Dry-Rolled Corn

Feeding different ratios of dryrolled corn (DRC) and steam-flaked corn (SFC) in diets that contain 0 or 35% wet distillers grains plus solubles (WDGS) was evaluated. As SFC replacedDRC in diets containing no WDGS, F:G improved. Varying SFC and DRC ratio in diets containing 35% WDGS did not impact F:G. Feeding WDGS increased hot carcass weight, and fat depth while feeding different ratios of corn impacted marbling deposition. Wet distillers grains appears to reducethe positive impacts of feeding SFC in finishing diets when included at 35% of diet DM