Effects of zilpaterol hydrochloride on growth performance, blood metabolites, and fatty acid profiles of plasma and adipose tissue in finishing steers.

The effects of zilpaterol hydrochloride (ZH) on blood metabolites and fatty acid profiles of plasma and adipose tissue were evaluated in crossbred finishing steers (n = 18, BW 639 ± 12.69 kg) that were stratified by BW and randomly assigned, within strata (block), to receive 0 (control) or 8.33 mg/kg diet DM ZH. Cattle were fed once daily ad libitum in individual feeding pens (9 pens/treatment). Zilpaterol hydrochloride was fed for 23 d and withdrawn 3 d before harvest. Blood samples and measures of BW were taken on d 0, 7, 14, and 21. Concentrations of ß-hydroxybutyrate (BHB), glucose, and lactate were determined from whole blood. Nonesterified fatty acids, urea nitrogen (PUN), glucose, lactate, and long-chain fatty acid (LCFA) concentrations were analyzed from plasma. Postharvest, adipose tissue samples (approximately 20 g) from subcutaneous fat covering the lumbar vertebrae were collected after 48 h of refrigeration and analyzed for LCFA profiles. Feeding ZH decreased DMI by 8% (P = 0.03) but did not affect BW gain or efficiency (P = 0.83 and P = 0.56, respectively). Addition of ZH resulted in greater HCW, dressing percentage, and LM area ( P = 0.02, P = 0.08, and P = 0.07, respectively) but did not influence other carcass traits (P > 0.10). A ZH × d interaction was observed for PUN and whole-blood glucose concentrations (P = 0.06), in which concentrations decreased in cattle receiving ZH. Nonesterified fatty acids, BHB, plasma glucose, whole-blood, and plasma lactate concentrations were unaffected by ZH (P > 0.10). Zilpaterol hydrochloride increased plasma concentrations of elaidic (P = 0.03), vaccenic (P = 0.006), and docosapentaenoic acids ( P= 0.08), but LCFA concentrations of adipose tissue were unaffected ( P> 0.10), suggesting no preferential oxidation of specific fatty acids. In conclusion, ZH supplementation decreased PUN concentration possibly due to decreased muscle catabolism, but components of blood related to lipid oxidation were unaffected.

"Inclusion" of information on mainstreaming in undergraduate music education curricula.

The purpose of this study was to examine teacher training programs in music education to provide an overview of course offerings in Special Education available to Music Education majors. One Research Category 1, one state-funded regional, and one private institution were randomly chosen from each state when available. All schools offering a degree in music therapy were included for a total of 171 schools with usable data. Catalogues were examined to determine (a) existence of a course in special education for music education majors, (b) department through which course was offered (nonmusic content or music content specific), (c) required or elective status of course, (d) course title and credit hours, and (e) reference to mainstreaming in music methods course descriptions. The first three areas were compared by (a) category of school, (b) universities offering music therapy and those not, (c) MENC Region. Results revealed that 74% of schools had a course in special education available with 86% of these requiring at least one course with a total of 140 courses available. 110 were nonmusic content specific while 30 were music content specific. Eighty-nine percent of the nonmusic content courses were required, while only 43% of the content specific courses were required. Information was further broken down as indicated above.