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Effect Of Feed Delivery Management On Yearling Steer Performance, S. J. Bierman, R. H. Pritchard
Effect Of Feed Delivery Management On Yearling Steer Performance, S. J. Bierman, R. H. Pritchard
South Dakota Beef Report, 1996
Gain efficiency by cattle fed high grain diets can be affected by feed delivery management (FDM). Restricted or limit feeding improves feed efficiency but can reduce ADG. This experiment was designed to evaluate if feeding near ad libitum intake while reducing the amount of variation between daily feed deliveries could provide feed efficiency advantages over unrestricted access to feed without restricting ADG. The FDM strategies for the 121-day feeding period included prescription intakes (PI) where variability between day to day feed deliveries were minimized or ad libitum intake (ALI) where feed was always available. Crossbred yearling steers (n = 76, …
Inophore Programs For Finishing Yearling Steers, R. H. Pritchard
Inophore Programs For Finishing Yearling Steers, R. H. Pritchard
South Dakota Beef Report, 1996
The relative effectiveness of three ionophore feeding strategies was compared in yearling steers. Six pens of 8 steers were assigned to each of the following treatments: A) no ionophore fed, B) lasalocid (33 glT) fed for 28 days and then replaced with laidlomycin propionate (1 1 g/T) for the balance of time on feed; C) monensin (28 g/T) fed throughout, and D) laidlomycin propionate (11 g/T) fed throughout. A five diet step-up program was used that culminated in a final diet based on cracked and high moisture corn and 7% ground hay. lonophores increased (P< .05) ADG (3.9%) and carcass weight and lowered (P<.05) feed/gain 4.5% during the 135-day feeding period. Among ionophore treatments, monensin resulted in a lower (P< .05) cumulative ADG and carcass weight than diets containing laidlomycin propionate. Three of the four steers removed from the trial due to metabolic disorders were from the no ionophore treatment.