Effects of feeding CLOSTAT ( PB6) on the clinical health, performance, and carcass characteristics of feedlot steers.

The objectives of this experiment were to evaluate the effects of feeding PB6 on clinical health, performance, and carcass characteristics of feedlot steers. crossbred steer calves ( = 397; 342 kg initial body weight [BW]) were randomly assigned to pens by initial BW; pens ( = 24) were randomly assigned to one of two of the following experimental treatments: 1) no supplemental dietary direct-fed microbial, control (CON; = 12 pens) or 2) 13 g/steer daily PB6 (CLO; CLOSTAT, Kemin Industries, Des Moines, IA; = 12 pens). Steers were housed in 12.

Effects of roughage type on particle separation, rumination, fiber mat characteristics, in situ degradation, and ruminal fermentation parameters in beef steers.

Six ruminally cannulated steers (average BW = 791 ± 71 kg) were used in a replicated 3 × 3 Latin square experiment to determine the effects of roughage type on rumination, fiber mat characteristics, and rumen fermentation variables. Three roughages were included at 7% (DM basis) in a steam flaked corn-based diet: cotton burrs (CB), wheat silage (WS), or corn stalks (CS). Steers were fitted with a sensory collar to record rumination behaviors in 2-h intervals at the beginning of the experiment.

Comparison of monensin sodium sources for finishing beef cattle.

The objective of this study was to evaluate the ruminal fermentation characteristics of ruminally fistulated beef steers consuming a steam-flaked corn () or dry-rolled corn () based diet containing either Rumensin 90 (; Elanco, Greenfield, IN), or Monovet 90 (; Huvepharma, Peachtree City, GA). Six ruminally fistulated steers (657.7 kg ± 72.

Growth, performance, and carcass characteristics of feedlot Holstein steers fed ractopamine hydrochloride.

Growth-promoting technologies such as implants, ionophores, and β-agonists improve feedlot performance, efficiency, and carcass characteristics of cattle. The objective of this experiment was to determine the effects of dose and duration of ractopamine hydrochloride (RH) on feedlot performance and carcass characteristics when fed to Holstein steers. A randomized complete block design was used with a 3 × 3 factorial arrangement of treatments with 3 RH doses (0, 300, or 400 mg∙steer∙d) fed for 3 durations (28, 35, or 42 d).

The effects of pretransportation or arrival meloxicam administration to calves entering the feedlot on morbidity, biomarkers, performance, and carcass characteristics.

The objective of this trial was to investigate the effects of using meloxicam as a pretransport or on arrival therapeutic on disease outcomes of bovine respiratory disease (BRD), biomarker outcomes associated with BRD, performance characteristics over the first 42 d on feed, and carcass traits at harvest in cross bred beef cattle. Multisourced, crossbred steer calves ( = 168) consisting of mainly British and British-Continental breeds were purchased from an auction market in central Missouri. Calves were processed prior to transportation and again upon feedlot arrival.