Initial Liver Copper Status in Finishing Beef Steers Fed Three Dietary Concentrations of Copper Affects Beta Agonist Performance, Carcass Characteristics, Lipolysis Response, and Muscle Inflammation Markers

Ninety-three Angus-crossbred steers (470 ± 35 kg) were assigned to a 3 × 2 factorial to determine the effects of Cu status and beta agonist (BA) on performance, carcass characteristics, lipolytic rate, and muscle inflammation. Factors included Cu supplementation (mg Cu/kg dry matter (DM)) at: 0 (LO)...
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Autor*in:	Elizabeth Messersmith [verfasserIn] Mark Branine [verfasserIn] Olivia Genther-Schroeder [verfasserIn] Jodi McGill [verfasserIn] Stephanie Hansen [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	cattle feedlot lipid metabolism ractopamine hydrochloride trace mineral

Übergeordnetes Werk:	In: Animals - MDPI AG, 2011, 11(2021), 9, p 2753
Übergeordnetes Werk:	volume:11 ; year:2021 ; number:9, p 2753

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/ani11092753

Katalog-ID:	DOAJ061802867

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allfields	10.3390/ani11092753 doi (DE-627)DOAJ061802867 (DE-599)DOAJ66986136267645359f5dbdf0dee110af DE-627 ger DE-627 rakwb eng SF600-1100 QL1-991 Elizabeth Messersmith verfasserin aut Initial Liver Copper Status in Finishing Beef Steers Fed Three Dietary Concentrations of Copper Affects Beta Agonist Performance, Carcass Characteristics, Lipolysis Response, and Muscle Inflammation Markers 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Ninety-three Angus-crossbred steers (470 ± 35 kg) were assigned to a 3 × 2 factorial to determine the effects of Cu status and beta agonist (BA) on performance, carcass characteristics, lipolytic rate, and muscle inflammation. Factors included Cu supplementation (mg Cu/kg dry matter (DM)) at: 0 (LO), 10 (MED), or 20 (HI) from Cu amino acid complex (Availa Cu; Zinpro) with no BA (NoRAC) or 300 mg·steer<sup<−1</sup<·day<sup<−1</sup< of ractopamine hydrochloride (RAC; Optaflexx; Elanco) for final 28 days of 88-day trial. Linear and quadratic effects of Cu status within BA treatment were tested. Pre-BA gain was not affected by Cu supplementation (<i<p</i< ≥ 0.57), although day 53 liver Cu quadratically increased (<i<p</i< = 0.01). Average daily gain and muscle IL-8 gene expression quadratically increased (<i<p</i< ≤ 0.01), with MED having greatest gain and gene expression. Ribeye area tended to quadratically increase with Cu supplementation within RAC (<i<p</i< = 0.08). In vitro basal lipolytic rate tended to quadratically increase with Cu supplementation within RAC (<i<p</i< = 0.11), while stimulated lipolytic rate tended to linearly increase within NoRAC (<i<p</i< = 0.10). These data suggest lipolysis and the BA response of steers are influenced by dietary and liver Cu concentrations. cattle feedlot lipid metabolism ractopamine hydrochloride trace mineral Veterinary medicine Zoology Mark Branine verfasserin aut Olivia Genther-Schroeder verfasserin aut Jodi McGill verfasserin aut Stephanie Hansen verfasserin aut In Animals MDPI AG, 2011 11(2021), 9, p 2753 (DE-627)657589306 (DE-600)2606558-7 20762615 nnns volume:11 year:2021 number:9, p 2753 https://doi.org/10.3390/ani11092753 kostenfrei https://doaj.org/article/66986136267645359f5dbdf0dee110af kostenfrei https://www.mdpi.com/2076-2615/11/9/2753 kostenfrei https://doaj.org/toc/2076-2615 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2021 9, p 2753
spelling	10.3390/ani11092753 doi (DE-627)DOAJ061802867 (DE-599)DOAJ66986136267645359f5dbdf0dee110af DE-627 ger DE-627 rakwb eng SF600-1100 QL1-991 Elizabeth Messersmith verfasserin aut Initial Liver Copper Status in Finishing Beef Steers Fed Three Dietary Concentrations of Copper Affects Beta Agonist Performance, Carcass Characteristics, Lipolysis Response, and Muscle Inflammation Markers 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Ninety-three Angus-crossbred steers (470 ± 35 kg) were assigned to a 3 × 2 factorial to determine the effects of Cu status and beta agonist (BA) on performance, carcass characteristics, lipolytic rate, and muscle inflammation. Factors included Cu supplementation (mg Cu/kg dry matter (DM)) at: 0 (LO), 10 (MED), or 20 (HI) from Cu amino acid complex (Availa Cu; Zinpro) with no BA (NoRAC) or 300 mg·steer<sup<−1</sup<·day<sup<−1</sup< of ractopamine hydrochloride (RAC; Optaflexx; Elanco) for final 28 days of 88-day trial. Linear and quadratic effects of Cu status within BA treatment were tested. Pre-BA gain was not affected by Cu supplementation (<i<p</i< ≥ 0.57), although day 53 liver Cu quadratically increased (<i<p</i< = 0.01). Average daily gain and muscle IL-8 gene expression quadratically increased (<i<p</i< ≤ 0.01), with MED having greatest gain and gene expression. Ribeye area tended to quadratically increase with Cu supplementation within RAC (<i<p</i< = 0.08). In vitro basal lipolytic rate tended to quadratically increase with Cu supplementation within RAC (<i<p</i< = 0.11), while stimulated lipolytic rate tended to linearly increase within NoRAC (<i<p</i< = 0.10). These data suggest lipolysis and the BA response of steers are influenced by dietary and liver Cu concentrations. cattle feedlot lipid metabolism ractopamine hydrochloride trace mineral Veterinary medicine Zoology Mark Branine verfasserin aut Olivia Genther-Schroeder verfasserin aut Jodi McGill verfasserin aut Stephanie Hansen verfasserin aut In Animals MDPI AG, 2011 11(2021), 9, p 2753 (DE-627)657589306 (DE-600)2606558-7 20762615 nnns volume:11 year:2021 number:9, p 2753 https://doi.org/10.3390/ani11092753 kostenfrei https://doaj.org/article/66986136267645359f5dbdf0dee110af kostenfrei https://www.mdpi.com/2076-2615/11/9/2753 kostenfrei https://doaj.org/toc/2076-2615 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2021 9, p 2753
allfields_unstemmed	10.3390/ani11092753 doi (DE-627)DOAJ061802867 (DE-599)DOAJ66986136267645359f5dbdf0dee110af DE-627 ger DE-627 rakwb eng SF600-1100 QL1-991 Elizabeth Messersmith verfasserin aut Initial Liver Copper Status in Finishing Beef Steers Fed Three Dietary Concentrations of Copper Affects Beta Agonist Performance, Carcass Characteristics, Lipolysis Response, and Muscle Inflammation Markers 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Ninety-three Angus-crossbred steers (470 ± 35 kg) were assigned to a 3 × 2 factorial to determine the effects of Cu status and beta agonist (BA) on performance, carcass characteristics, lipolytic rate, and muscle inflammation. Factors included Cu supplementation (mg Cu/kg dry matter (DM)) at: 0 (LO), 10 (MED), or 20 (HI) from Cu amino acid complex (Availa Cu; Zinpro) with no BA (NoRAC) or 300 mg·steer<sup<−1</sup<·day<sup<−1</sup< of ractopamine hydrochloride (RAC; Optaflexx; Elanco) for final 28 days of 88-day trial. Linear and quadratic effects of Cu status within BA treatment were tested. Pre-BA gain was not affected by Cu supplementation (<i<p</i< ≥ 0.57), although day 53 liver Cu quadratically increased (<i<p</i< = 0.01). Average daily gain and muscle IL-8 gene expression quadratically increased (<i<p</i< ≤ 0.01), with MED having greatest gain and gene expression. Ribeye area tended to quadratically increase with Cu supplementation within RAC (<i<p</i< = 0.08). In vitro basal lipolytic rate tended to quadratically increase with Cu supplementation within RAC (<i<p</i< = 0.11), while stimulated lipolytic rate tended to linearly increase within NoRAC (<i<p</i< = 0.10). These data suggest lipolysis and the BA response of steers are influenced by dietary and liver Cu concentrations. cattle feedlot lipid metabolism ractopamine hydrochloride trace mineral Veterinary medicine Zoology Mark Branine verfasserin aut Olivia Genther-Schroeder verfasserin aut Jodi McGill verfasserin aut Stephanie Hansen verfasserin aut In Animals MDPI AG, 2011 11(2021), 9, p 2753 (DE-627)657589306 (DE-600)2606558-7 20762615 nnns volume:11 year:2021 number:9, p 2753 https://doi.org/10.3390/ani11092753 kostenfrei https://doaj.org/article/66986136267645359f5dbdf0dee110af kostenfrei https://www.mdpi.com/2076-2615/11/9/2753 kostenfrei https://doaj.org/toc/2076-2615 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2021 9, p 2753
allfieldsGer	10.3390/ani11092753 doi (DE-627)DOAJ061802867 (DE-599)DOAJ66986136267645359f5dbdf0dee110af DE-627 ger DE-627 rakwb eng SF600-1100 QL1-991 Elizabeth Messersmith verfasserin aut Initial Liver Copper Status in Finishing Beef Steers Fed Three Dietary Concentrations of Copper Affects Beta Agonist Performance, Carcass Characteristics, Lipolysis Response, and Muscle Inflammation Markers 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Ninety-three Angus-crossbred steers (470 ± 35 kg) were assigned to a 3 × 2 factorial to determine the effects of Cu status and beta agonist (BA) on performance, carcass characteristics, lipolytic rate, and muscle inflammation. Factors included Cu supplementation (mg Cu/kg dry matter (DM)) at: 0 (LO), 10 (MED), or 20 (HI) from Cu amino acid complex (Availa Cu; Zinpro) with no BA (NoRAC) or 300 mg·steer<sup<−1</sup<·day<sup<−1</sup< of ractopamine hydrochloride (RAC; Optaflexx; Elanco) for final 28 days of 88-day trial. Linear and quadratic effects of Cu status within BA treatment were tested. Pre-BA gain was not affected by Cu supplementation (<i<p</i< ≥ 0.57), although day 53 liver Cu quadratically increased (<i<p</i< = 0.01). Average daily gain and muscle IL-8 gene expression quadratically increased (<i<p</i< ≤ 0.01), with MED having greatest gain and gene expression. Ribeye area tended to quadratically increase with Cu supplementation within RAC (<i<p</i< = 0.08). In vitro basal lipolytic rate tended to quadratically increase with Cu supplementation within RAC (<i<p</i< = 0.11), while stimulated lipolytic rate tended to linearly increase within NoRAC (<i<p</i< = 0.10). These data suggest lipolysis and the BA response of steers are influenced by dietary and liver Cu concentrations. cattle feedlot lipid metabolism ractopamine hydrochloride trace mineral Veterinary medicine Zoology Mark Branine verfasserin aut Olivia Genther-Schroeder verfasserin aut Jodi McGill verfasserin aut Stephanie Hansen verfasserin aut In Animals MDPI AG, 2011 11(2021), 9, p 2753 (DE-627)657589306 (DE-600)2606558-7 20762615 nnns volume:11 year:2021 number:9, p 2753 https://doi.org/10.3390/ani11092753 kostenfrei https://doaj.org/article/66986136267645359f5dbdf0dee110af kostenfrei https://www.mdpi.com/2076-2615/11/9/2753 kostenfrei https://doaj.org/toc/2076-2615 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2021 9, p 2753
allfieldsSound	10.3390/ani11092753 doi (DE-627)DOAJ061802867 (DE-599)DOAJ66986136267645359f5dbdf0dee110af DE-627 ger DE-627 rakwb eng SF600-1100 QL1-991 Elizabeth Messersmith verfasserin aut Initial Liver Copper Status in Finishing Beef Steers Fed Three Dietary Concentrations of Copper Affects Beta Agonist Performance, Carcass Characteristics, Lipolysis Response, and Muscle Inflammation Markers 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Ninety-three Angus-crossbred steers (470 ± 35 kg) were assigned to a 3 × 2 factorial to determine the effects of Cu status and beta agonist (BA) on performance, carcass characteristics, lipolytic rate, and muscle inflammation. Factors included Cu supplementation (mg Cu/kg dry matter (DM)) at: 0 (LO), 10 (MED), or 20 (HI) from Cu amino acid complex (Availa Cu; Zinpro) with no BA (NoRAC) or 300 mg·steer<sup<−1</sup<·day<sup<−1</sup< of ractopamine hydrochloride (RAC; Optaflexx; Elanco) for final 28 days of 88-day trial. Linear and quadratic effects of Cu status within BA treatment were tested. Pre-BA gain was not affected by Cu supplementation (<i<p</i< ≥ 0.57), although day 53 liver Cu quadratically increased (<i<p</i< = 0.01). Average daily gain and muscle IL-8 gene expression quadratically increased (<i<p</i< ≤ 0.01), with MED having greatest gain and gene expression. Ribeye area tended to quadratically increase with Cu supplementation within RAC (<i<p</i< = 0.08). In vitro basal lipolytic rate tended to quadratically increase with Cu supplementation within RAC (<i<p</i< = 0.11), while stimulated lipolytic rate tended to linearly increase within NoRAC (<i<p</i< = 0.10). These data suggest lipolysis and the BA response of steers are influenced by dietary and liver Cu concentrations. cattle feedlot lipid metabolism ractopamine hydrochloride trace mineral Veterinary medicine Zoology Mark Branine verfasserin aut Olivia Genther-Schroeder verfasserin aut Jodi McGill verfasserin aut Stephanie Hansen verfasserin aut In Animals MDPI AG, 2011 11(2021), 9, p 2753 (DE-627)657589306 (DE-600)2606558-7 20762615 nnns volume:11 year:2021 number:9, p 2753 https://doi.org/10.3390/ani11092753 kostenfrei https://doaj.org/article/66986136267645359f5dbdf0dee110af kostenfrei https://www.mdpi.com/2076-2615/11/9/2753 kostenfrei https://doaj.org/toc/2076-2615 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2021 9, p 2753
language	English
source	In Animals 11(2021), 9, p 2753 volume:11 year:2021 number:9, p 2753
sourceStr	In Animals 11(2021), 9, p 2753 volume:11 year:2021 number:9, p 2753
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	cattle feedlot lipid metabolism ractopamine hydrochloride trace mineral Veterinary medicine Zoology
isfreeaccess_bool	true
container_title	Animals
authorswithroles_txt_mv	Elizabeth Messersmith @@aut@@ Mark Branine @@aut@@ Olivia Genther-Schroeder @@aut@@ Jodi McGill @@aut@@ Stephanie Hansen @@aut@@
publishDateDaySort_date	2021-01-01T00:00:00Z
hierarchy_top_id	657589306
id	DOAJ061802867
language_de	englisch
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callnumber-first	S - Agriculture
author	Elizabeth Messersmith
spellingShingle	Elizabeth Messersmith misc SF600-1100 misc QL1-991 misc cattle misc feedlot misc lipid metabolism misc ractopamine hydrochloride misc trace mineral misc Veterinary medicine misc Zoology Initial Liver Copper Status in Finishing Beef Steers Fed Three Dietary Concentrations of Copper Affects Beta Agonist Performance, Carcass Characteristics, Lipolysis Response, and Muscle Inflammation Markers
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topic_title	SF600-1100 QL1-991 Initial Liver Copper Status in Finishing Beef Steers Fed Three Dietary Concentrations of Copper Affects Beta Agonist Performance, Carcass Characteristics, Lipolysis Response, and Muscle Inflammation Markers cattle feedlot lipid metabolism ractopamine hydrochloride trace mineral
topic	misc SF600-1100 misc QL1-991 misc cattle misc feedlot misc lipid metabolism misc ractopamine hydrochloride misc trace mineral misc Veterinary medicine misc Zoology
topic_unstemmed	misc SF600-1100 misc QL1-991 misc cattle misc feedlot misc lipid metabolism misc ractopamine hydrochloride misc trace mineral misc Veterinary medicine misc Zoology
topic_browse	misc SF600-1100 misc QL1-991 misc cattle misc feedlot misc lipid metabolism misc ractopamine hydrochloride misc trace mineral misc Veterinary medicine misc Zoology
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title	Initial Liver Copper Status in Finishing Beef Steers Fed Three Dietary Concentrations of Copper Affects Beta Agonist Performance, Carcass Characteristics, Lipolysis Response, and Muscle Inflammation Markers
ctrlnum	(DE-627)DOAJ061802867 (DE-599)DOAJ66986136267645359f5dbdf0dee110af
title_full	Initial Liver Copper Status in Finishing Beef Steers Fed Three Dietary Concentrations of Copper Affects Beta Agonist Performance, Carcass Characteristics, Lipolysis Response, and Muscle Inflammation Markers
author_sort	Elizabeth Messersmith
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author_browse	Elizabeth Messersmith Mark Branine Olivia Genther-Schroeder Jodi McGill Stephanie Hansen
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author-letter	Elizabeth Messersmith
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title_sort	initial liver copper status in finishing beef steers fed three dietary concentrations of copper affects beta agonist performance, carcass characteristics, lipolysis response, and muscle inflammation markers
callnumber	SF600-1100
title_auth	Initial Liver Copper Status in Finishing Beef Steers Fed Three Dietary Concentrations of Copper Affects Beta Agonist Performance, Carcass Characteristics, Lipolysis Response, and Muscle Inflammation Markers
abstract	Ninety-three Angus-crossbred steers (470 ± 35 kg) were assigned to a 3 × 2 factorial to determine the effects of Cu status and beta agonist (BA) on performance, carcass characteristics, lipolytic rate, and muscle inflammation. Factors included Cu supplementation (mg Cu/kg dry matter (DM)) at: 0 (LO), 10 (MED), or 20 (HI) from Cu amino acid complex (Availa Cu; Zinpro) with no BA (NoRAC) or 300 mg·steer<sup<−1</sup<·day<sup<−1</sup< of ractopamine hydrochloride (RAC; Optaflexx; Elanco) for final 28 days of 88-day trial. Linear and quadratic effects of Cu status within BA treatment were tested. Pre-BA gain was not affected by Cu supplementation (<i<p</i< ≥ 0.57), although day 53 liver Cu quadratically increased (<i<p</i< = 0.01). Average daily gain and muscle IL-8 gene expression quadratically increased (<i<p</i< ≤ 0.01), with MED having greatest gain and gene expression. Ribeye area tended to quadratically increase with Cu supplementation within RAC (<i<p</i< = 0.08). In vitro basal lipolytic rate tended to quadratically increase with Cu supplementation within RAC (<i<p</i< = 0.11), while stimulated lipolytic rate tended to linearly increase within NoRAC (<i<p</i< = 0.10). These data suggest lipolysis and the BA response of steers are influenced by dietary and liver Cu concentrations.
abstractGer	Ninety-three Angus-crossbred steers (470 ± 35 kg) were assigned to a 3 × 2 factorial to determine the effects of Cu status and beta agonist (BA) on performance, carcass characteristics, lipolytic rate, and muscle inflammation. Factors included Cu supplementation (mg Cu/kg dry matter (DM)) at: 0 (LO), 10 (MED), or 20 (HI) from Cu amino acid complex (Availa Cu; Zinpro) with no BA (NoRAC) or 300 mg·steer<sup<−1</sup<·day<sup<−1</sup< of ractopamine hydrochloride (RAC; Optaflexx; Elanco) for final 28 days of 88-day trial. Linear and quadratic effects of Cu status within BA treatment were tested. Pre-BA gain was not affected by Cu supplementation (<i<p</i< ≥ 0.57), although day 53 liver Cu quadratically increased (<i<p</i< = 0.01). Average daily gain and muscle IL-8 gene expression quadratically increased (<i<p</i< ≤ 0.01), with MED having greatest gain and gene expression. Ribeye area tended to quadratically increase with Cu supplementation within RAC (<i<p</i< = 0.08). In vitro basal lipolytic rate tended to quadratically increase with Cu supplementation within RAC (<i<p</i< = 0.11), while stimulated lipolytic rate tended to linearly increase within NoRAC (<i<p</i< = 0.10). These data suggest lipolysis and the BA response of steers are influenced by dietary and liver Cu concentrations.
abstract_unstemmed	Ninety-three Angus-crossbred steers (470 ± 35 kg) were assigned to a 3 × 2 factorial to determine the effects of Cu status and beta agonist (BA) on performance, carcass characteristics, lipolytic rate, and muscle inflammation. Factors included Cu supplementation (mg Cu/kg dry matter (DM)) at: 0 (LO), 10 (MED), or 20 (HI) from Cu amino acid complex (Availa Cu; Zinpro) with no BA (NoRAC) or 300 mg·steer<sup<−1</sup<·day<sup<−1</sup< of ractopamine hydrochloride (RAC; Optaflexx; Elanco) for final 28 days of 88-day trial. Linear and quadratic effects of Cu status within BA treatment were tested. Pre-BA gain was not affected by Cu supplementation (<i<p</i< ≥ 0.57), although day 53 liver Cu quadratically increased (<i<p</i< = 0.01). Average daily gain and muscle IL-8 gene expression quadratically increased (<i<p</i< ≤ 0.01), with MED having greatest gain and gene expression. Ribeye area tended to quadratically increase with Cu supplementation within RAC (<i<p</i< = 0.08). In vitro basal lipolytic rate tended to quadratically increase with Cu supplementation within RAC (<i<p</i< = 0.11), while stimulated lipolytic rate tended to linearly increase within NoRAC (<i<p</i< = 0.10). These data suggest lipolysis and the BA response of steers are influenced by dietary and liver Cu concentrations.
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title_short	Initial Liver Copper Status in Finishing Beef Steers Fed Three Dietary Concentrations of Copper Affects Beta Agonist Performance, Carcass Characteristics, Lipolysis Response, and Muscle Inflammation Markers
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Initial Liver Copper Status in Finishing Beef Steers Fed Three Dietary Concentrations of Copper Affects Beta Agonist Performance, Carcass Characteristics, Lipolysis Response, and Muscle Inflammation Markers

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