Effects of feeding generic ractopamine (Actogain) with or without the combination of monensin and tylosin phosphate on growth performance, carcass characteristics, and tenderness of finishing steers

B. M. Bohrer; H. O. Galloway; D. M. Meeuwse; J. L. Beckett; M. D. Edmonds; E. D. Sharman; W. M. Moseley; H. B. Vanimisetti; A. L. Schroeder; A. C. Dilger; D. D. Boler

doi:10.15232/pas.2015-01414

Effects of feeding generic ractopamine (Actogain) with or without the combination of monensin and tylosin phosphate on growth performance, carcass characteristics, and tenderness of finishing steers

B. M. Bohrer, H. O. Galloway, D. M. Meeuwse, J. L. Beckett, M. D. Edmonds, E. D. Sharman, W. M. Moseley, H. B. Vanimisetti, A. L. Schroeder, A. C. Dilger, D. D. Boler

Research output: Contribution to journal › Article › peer-review

Abstract

The objectives of this study were to evaluate the effects of generic ractopamine (Actogain) with or without the combination of monensin and tylosin on growth performance, carcass characteristics, and tenderness of finishing steers. A total of 1,230 steers were finished in 6 blocks based on allocated BW, where each block had 3 pens (1 pen per treatment). Steers were assigned to 1 of 3 different finishing diets for the final 33 or 34 d before slaughter: (1) no generic ractopamine with monensin and tylosin (CON. +. M/T), (2) generic ractopamine without monensin and tylosin (ACTO - M/T), or (3) generic ractopamine with monensin and tylosin (ACTO. +. M/T). Steers fed ACTO - M/T and ACTO. +. M/T had greater (P. <. 0.0001) final BW, ADG, G:F, and HCW compared with steers fed CON. +. M/T. Interest- ingly, steers fed ACTO - M/T had 5-kg- greater (P. <. 0.01) final BW than steers fed ACTO. +. M/T. However, DMI was 1.06 and 1.00 kg greater (P. <. 0.0001) in steers fed ACTO - M/T compared with steers fed ACTO. +. M/T and CON. +. M/T, respectively. Marbling scores were 20.3 units less (P. =. 0.01) in steers fed ACTO. +. M/T compared with steers fed CON. +. M/T. There were no treatment differences (P. >. 0.06) for YG parame- ters (excluding HCW), calculated YG, or Warner-Bratzler shear force. In conclusion, final BW, ADG, G:F, and HCW were increased in steers fed ACTO with or without M/T compared with steers fed CON. +. M/T, and other carcass charac- teristics were minimally affected among treatments.

Original language	English (US)
Pages (from-to)	42-52
Number of pages	11
Journal	Professional Animal Scientist
Volume	32
Issue number	1
DOIs	https://doi.org/10.15232/pas.2015-01414
State	Published - Feb 1 2016

Keywords

Actogain
Beta-agonist
Ractopamine
Steer

ASJC Scopus subject areas

Food Science
Animal Science and Zoology

Online availability

10.15232/pas.2015-01414

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Bohrer, B. M., Galloway, H. O., Meeuwse, D. M., Beckett, J. L., Edmonds, M. D., Sharman, E. D., Moseley, W. M., Vanimisetti, H. B., Schroeder, A. L., Dilger, A. C., & Boler, D. D. (2016). Effects of feeding generic ractopamine (Actogain) with or without the combination of monensin and tylosin phosphate on growth performance, carcass characteristics, and tenderness of finishing steers. Professional Animal Scientist, 32(1), 42-52. https://doi.org/10.15232/pas.2015-01414

Effects of feeding generic ractopamine (Actogain) with or without the combination of monensin and tylosin phosphate on growth performance, carcass characteristics, and tenderness of finishing steers. / Bohrer, B. M.; Galloway, H. O.; Meeuwse, D. M. et al.
In: Professional Animal Scientist, Vol. 32, No. 1, 01.02.2016, p. 42-52.

Research output: Contribution to journal › Article › peer-review

Bohrer, BM, Galloway, HO, Meeuwse, DM, Beckett, JL, Edmonds, MD, Sharman, ED, Moseley, WM, Vanimisetti, HB, Schroeder, AL, Dilger, AC & Boler, DD 2016, 'Effects of feeding generic ractopamine (Actogain) with or without the combination of monensin and tylosin phosphate on growth performance, carcass characteristics, and tenderness of finishing steers', Professional Animal Scientist, vol. 32, no. 1, pp. 42-52. https://doi.org/10.15232/pas.2015-01414

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title = "Effects of feeding generic ractopamine (Actogain) with or without the combination of monensin and tylosin phosphate on growth performance, carcass characteristics, and tenderness of finishing steers",

abstract = "The objectives of this study were to evaluate the effects of generic ractopamine (Actogain) with or without the combination of monensin and tylosin on growth performance, carcass characteristics, and tenderness of finishing steers. A total of 1,230 steers were finished in 6 blocks based on allocated BW, where each block had 3 pens (1 pen per treatment). Steers were assigned to 1 of 3 different finishing diets for the final 33 or 34 d before slaughter: (1) no generic ractopamine with monensin and tylosin (CON. +. M/T), (2) generic ractopamine without monensin and tylosin (ACTO - M/T), or (3) generic ractopamine with monensin and tylosin (ACTO. +. M/T). Steers fed ACTO - M/T and ACTO. +. M/T had greater (P. <. 0.0001) final BW, ADG, G:F, and HCW compared with steers fed CON. +. M/T. Interest- ingly, steers fed ACTO - M/T had 5-kg- greater (P. <. 0.01) final BW than steers fed ACTO. +. M/T. However, DMI was 1.06 and 1.00 kg greater (P. <. 0.0001) in steers fed ACTO - M/T compared with steers fed ACTO. +. M/T and CON. +. M/T, respectively. Marbling scores were 20.3 units less (P. =. 0.01) in steers fed ACTO. +. M/T compared with steers fed CON. +. M/T. There were no treatment differences (P. >. 0.06) for YG parame- ters (excluding HCW), calculated YG, or Warner-Bratzler shear force. In conclusion, final BW, ADG, G:F, and HCW were increased in steers fed ACTO with or without M/T compared with steers fed CON. +. M/T, and other carcass charac- teristics were minimally affected among treatments.",

keywords = "Actogain, Beta-agonist, Ractopamine, Steer",

author = "Bohrer, {B. M.} and Galloway, {H. O.} and Meeuwse, {D. M.} and Beckett, {J. L.} and Edmonds, {M. D.} and Sharman, {E. D.} and Moseley, {W. M.} and Vanimisetti, {H. B.} and Schroeder, {A. L.} and Dilger, {A. C.} and Boler, {D. D.}",

note = "Funding Information: This research was funded by Zoetis, Kalamazoo, Michigan. Publisher Copyright: {\textcopyright} 2016 American Registry of Professional Animal Scientists.",

year = "2016",

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doi = "10.15232/pas.2015-01414",

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AU - Bohrer, B. M.

AU - Galloway, H. O.

AU - Meeuwse, D. M.

AU - Beckett, J. L.

AU - Edmonds, M. D.

AU - Sharman, E. D.

AU - Moseley, W. M.

AU - Vanimisetti, H. B.

AU - Schroeder, A. L.

AU - Dilger, A. C.

AU - Boler, D. D.

PY - 2016/2/1

Y1 - 2016/2/1

N2 - The objectives of this study were to evaluate the effects of generic ractopamine (Actogain) with or without the combination of monensin and tylosin on growth performance, carcass characteristics, and tenderness of finishing steers. A total of 1,230 steers were finished in 6 blocks based on allocated BW, where each block had 3 pens (1 pen per treatment). Steers were assigned to 1 of 3 different finishing diets for the final 33 or 34 d before slaughter: (1) no generic ractopamine with monensin and tylosin (CON. +. M/T), (2) generic ractopamine without monensin and tylosin (ACTO - M/T), or (3) generic ractopamine with monensin and tylosin (ACTO. +. M/T). Steers fed ACTO - M/T and ACTO. +. M/T had greater (P. <. 0.0001) final BW, ADG, G:F, and HCW compared with steers fed CON. +. M/T. Interest- ingly, steers fed ACTO - M/T had 5-kg- greater (P. <. 0.01) final BW than steers fed ACTO. +. M/T. However, DMI was 1.06 and 1.00 kg greater (P. <. 0.0001) in steers fed ACTO - M/T compared with steers fed ACTO. +. M/T and CON. +. M/T, respectively. Marbling scores were 20.3 units less (P. =. 0.01) in steers fed ACTO. +. M/T compared with steers fed CON. +. M/T. There were no treatment differences (P. >. 0.06) for YG parame- ters (excluding HCW), calculated YG, or Warner-Bratzler shear force. In conclusion, final BW, ADG, G:F, and HCW were increased in steers fed ACTO with or without M/T compared with steers fed CON. +. M/T, and other carcass charac- teristics were minimally affected among treatments.

AB - The objectives of this study were to evaluate the effects of generic ractopamine (Actogain) with or without the combination of monensin and tylosin on growth performance, carcass characteristics, and tenderness of finishing steers. A total of 1,230 steers were finished in 6 blocks based on allocated BW, where each block had 3 pens (1 pen per treatment). Steers were assigned to 1 of 3 different finishing diets for the final 33 or 34 d before slaughter: (1) no generic ractopamine with monensin and tylosin (CON. +. M/T), (2) generic ractopamine without monensin and tylosin (ACTO - M/T), or (3) generic ractopamine with monensin and tylosin (ACTO. +. M/T). Steers fed ACTO - M/T and ACTO. +. M/T had greater (P. <. 0.0001) final BW, ADG, G:F, and HCW compared with steers fed CON. +. M/T. Interest- ingly, steers fed ACTO - M/T had 5-kg- greater (P. <. 0.01) final BW than steers fed ACTO. +. M/T. However, DMI was 1.06 and 1.00 kg greater (P. <. 0.0001) in steers fed ACTO - M/T compared with steers fed ACTO. +. M/T and CON. +. M/T, respectively. Marbling scores were 20.3 units less (P. =. 0.01) in steers fed ACTO. +. M/T compared with steers fed CON. +. M/T. There were no treatment differences (P. >. 0.06) for YG parame- ters (excluding HCW), calculated YG, or Warner-Bratzler shear force. In conclusion, final BW, ADG, G:F, and HCW were increased in steers fed ACTO with or without M/T compared with steers fed CON. +. M/T, and other carcass charac- teristics were minimally affected among treatments.

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KW - Beta-agonist

KW - Ractopamine

KW - Steer

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Effects of feeding generic ractopamine (Actogain) with or without the combination of monensin and tylosin phosphate on growth performance, carcass characteristics, and tenderness of finishing steers

Abstract

Keywords

ASJC Scopus subject areas

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