The impact of supplemental zinc concentrations and either ractopamine hydrochloride or dietary energy content on blood metabolite measures

dc.contributor.author Wise, Payton
dc.contributor.department Animal Science
dc.date 2020-09-17T22:30:14.000
dc.date.accessioned 2021-02-26T00:34:36Z
dc.date.available 2021-02-26T00:34:36Z
dc.date.issued 2019-01-01
dc.description.abstract <p>The impact of supplemental zinc concentrations and either ractopamine hydrochloride or dietary energy content on blood metabolite measures P. E. Wise, R. N. Carmichael and S. L. Hansen This study researched whether increased dietary zinc supports growth within the beta-agonist cascade (Exp. 2) or by ulterior mechanisms (Exp. 1—dietary energy content). Angus-type steers received one of three Zn supplementations (ZNTRT). ZNTRT included CON (0 mg Zn/kg DM supplemental zinc), ZS (120 mg Zn/kg DM as ZnSO4), and ZA (60 mg Zn/kg DM as ZnSO4 + 60 mg Zn/kg DM as Zn-AA complex). In Exp. 1, half received LOW diets (~1.6 kg/d ADG fed for initial 60 d to all steers) and half HI diets (~2 kg/d ADG). In Exp. 2, half received a beta-agonist—RAC (300 mg ractopamine HCl·steer ·-1d ·-1) and half did not—NON (0 mg ractopamine HCl·steer ·-1d ·-1 ). Blood was sampled throughout the trial periods (four days for Exp. 1 and five days for Exp. 2) and analyzed for blood urea nitrogen (BUN) and non-esterified fatty acid (NEFA) concentrations. Overall, NEFA concentration was unaffected by ZNTRT but was affected by energy in Exp. 1 (P = 0.02). BUN concentration increased in Exp. 2 during pre-RH and RH periods when fed ZA diets (P < 0.01, P = 0.09, respectively). BUN concentration in Exp. 2 decreased with supplementation of RAC (P = 0.01).</p>
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dc.identifier archive/lib.dr.iastate.edu/honors_posters/201904/projects/8/
dc.identifier.articleid 1331
dc.identifier.contextkey 19424175
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath honors_posters/201904/projects/8
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/96460
dc.relation.ispartofseries Honors Projects and Posters
dc.source.bitstream archive/lib.dr.iastate.edu/honors_posters/201904/projects/8/Wise_Payton.pdf|||Sat Jan 15 02:03:37 UTC 2022
dc.title The impact of supplemental zinc concentrations and either ractopamine hydrochloride or dietary energy content on blood metabolite measures
dc.type event
dc.type.genre event
dspace.entity.type Publication
relation.isOrgUnitOfPublication 85ecce08-311a-441b-9c4d-ee2a3569506f
relation.isSeriesOfPublication 78a1cb49-0dee-4c38-97a8-c1fd0b7a74ea
thesis.degree.discipline Animal Science
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