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Effects of feeding high-energy diet on growth performance, blood parameters, and carcass traits in Hanwoo steers
OBJECTIVE: Our study aimed to investigate the effects of a 2% increase in dietary total digestible nutrients (TDN) value during the growing (7 to 12 mo of age) and fattening (13 to 30 mo of age) period of Hanwoo steers. METHODS: Two hundred and twenty Hanwoo steers were assigned to one of two treatm...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Animal Bioscience
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9449379/ https://www.ncbi.nlm.nih.gov/pubmed/35507848 http://dx.doi.org/10.5713/ab.22.0014 |
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author | Kang, Dong Hun Chung, Ki Yong Park, Bo Hye Kim, Ui Hyung Jang, Sun Sik Smith, Zachary K. Kim, Jongkyoo |
author_facet | Kang, Dong Hun Chung, Ki Yong Park, Bo Hye Kim, Ui Hyung Jang, Sun Sik Smith, Zachary K. Kim, Jongkyoo |
author_sort | Kang, Dong Hun |
collection | PubMed |
description | OBJECTIVE: Our study aimed to investigate the effects of a 2% increase in dietary total digestible nutrients (TDN) value during the growing (7 to 12 mo of age) and fattening (13 to 30 mo of age) period of Hanwoo steers. METHODS: Two hundred and twenty Hanwoo steers were assigned to one of two treatments: i) a control group (basal TDN, BTDN, n = 111 steers, growing = 70.5%, early fattening = 71.0%, late fattening = 74.0%) or high TDN (HTDN, n = 109 steers, growing = 72.6%, early = 73.1%, late = 76.2%). Growth performance, carcass traits, blood parameters, and gene expression of longissimus dorsi (LD) (7, 18, and 30 mo) were quantified. RESULTS: Steers on the BTDN diets had increased (p≤0.02) DMI throughout the feeding trial compared to HTDN, but gain did not differ appreciably. A greater proportion of cattle in HTDN received Korean quality grade 1 (82%) or greater compared to BTDN (77%), while HTDN had a greater yield grade (29%) than BTDN (20%). Redness (a*) of LD muscle was improved (p = 0.021) in steers fed HTDN. Feeding the HTDN diet did not alter blood parameters. Steers fed HTDN diet increased (p = 0.015) the proportion of stearic acid and tended to alter linoleic acid. Overall, saturated, unsaturated, monounsaturated, and polyunsaturated fatty acids of LD muscle were not impacted by the HTDN treatment. A treatment by age interaction was noted for mRNA expression of myosin heavy chain (MHC) IIA, IIX, and stearoyl CoA desaturase (SCD) (p≤0.026). No treatment effect was detected on gene expression from LD muscle biopsies at 7, 18, and 30 mo of age; however, an age effect was detected for all variables measured (p≤0.001). CONCLUSION: Our results indicated that feeding HTDN diet could improve overall quality grade while minimum effects were noted in gene expression, blood parameters, and growing performance. Cattle performance prediction in the feedlot is a critical decision-making tool for optimal planning of cattle fattening and these data provide both benchmark physiological parameters and growth performance measures for Hanwoo cattle feeding enterprises. |
format | Online Article Text |
id | pubmed-9449379 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Animal Bioscience |
record_format | MEDLINE/PubMed |
spelling | pubmed-94493792022-10-01 Effects of feeding high-energy diet on growth performance, blood parameters, and carcass traits in Hanwoo steers Kang, Dong Hun Chung, Ki Yong Park, Bo Hye Kim, Ui Hyung Jang, Sun Sik Smith, Zachary K. Kim, Jongkyoo Anim Biosci Article OBJECTIVE: Our study aimed to investigate the effects of a 2% increase in dietary total digestible nutrients (TDN) value during the growing (7 to 12 mo of age) and fattening (13 to 30 mo of age) period of Hanwoo steers. METHODS: Two hundred and twenty Hanwoo steers were assigned to one of two treatments: i) a control group (basal TDN, BTDN, n = 111 steers, growing = 70.5%, early fattening = 71.0%, late fattening = 74.0%) or high TDN (HTDN, n = 109 steers, growing = 72.6%, early = 73.1%, late = 76.2%). Growth performance, carcass traits, blood parameters, and gene expression of longissimus dorsi (LD) (7, 18, and 30 mo) were quantified. RESULTS: Steers on the BTDN diets had increased (p≤0.02) DMI throughout the feeding trial compared to HTDN, but gain did not differ appreciably. A greater proportion of cattle in HTDN received Korean quality grade 1 (82%) or greater compared to BTDN (77%), while HTDN had a greater yield grade (29%) than BTDN (20%). Redness (a*) of LD muscle was improved (p = 0.021) in steers fed HTDN. Feeding the HTDN diet did not alter blood parameters. Steers fed HTDN diet increased (p = 0.015) the proportion of stearic acid and tended to alter linoleic acid. Overall, saturated, unsaturated, monounsaturated, and polyunsaturated fatty acids of LD muscle were not impacted by the HTDN treatment. A treatment by age interaction was noted for mRNA expression of myosin heavy chain (MHC) IIA, IIX, and stearoyl CoA desaturase (SCD) (p≤0.026). No treatment effect was detected on gene expression from LD muscle biopsies at 7, 18, and 30 mo of age; however, an age effect was detected for all variables measured (p≤0.001). CONCLUSION: Our results indicated that feeding HTDN diet could improve overall quality grade while minimum effects were noted in gene expression, blood parameters, and growing performance. Cattle performance prediction in the feedlot is a critical decision-making tool for optimal planning of cattle fattening and these data provide both benchmark physiological parameters and growth performance measures for Hanwoo cattle feeding enterprises. Animal Bioscience 2022-10 2022-05-02 /pmc/articles/PMC9449379/ /pubmed/35507848 http://dx.doi.org/10.5713/ab.22.0014 Text en Copyright © 2022 by Animal Bioscience https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Article Kang, Dong Hun Chung, Ki Yong Park, Bo Hye Kim, Ui Hyung Jang, Sun Sik Smith, Zachary K. Kim, Jongkyoo Effects of feeding high-energy diet on growth performance, blood parameters, and carcass traits in Hanwoo steers |
title | Effects of feeding high-energy diet on growth performance, blood parameters, and carcass traits in Hanwoo steers |
title_full | Effects of feeding high-energy diet on growth performance, blood parameters, and carcass traits in Hanwoo steers |
title_fullStr | Effects of feeding high-energy diet on growth performance, blood parameters, and carcass traits in Hanwoo steers |
title_full_unstemmed | Effects of feeding high-energy diet on growth performance, blood parameters, and carcass traits in Hanwoo steers |
title_short | Effects of feeding high-energy diet on growth performance, blood parameters, and carcass traits in Hanwoo steers |
title_sort | effects of feeding high-energy diet on growth performance, blood parameters, and carcass traits in hanwoo steers |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9449379/ https://www.ncbi.nlm.nih.gov/pubmed/35507848 http://dx.doi.org/10.5713/ab.22.0014 |
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