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Comprehensive evaluation of growth performance and meat characteristics of a fattening system combining grazing with feeding rice whole‐crop silage in Japanese Black steers

We investigated the effect of a system for fattening steers combining grazing with feeding rice whole‐crop silage (rWCS) on growth performance, meat characteristics, and the expression of genes involved in skeletal muscle growth. Steers were randomly assigned to grazing or concentrate‐fed groups (CT...

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Detalles Bibliográficos
Autores principales: Shibata, Masahiro, Hikino, Yasuko, Imanari, Mai, Matsumoto, Kazunori
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8243347/
https://www.ncbi.nlm.nih.gov/pubmed/30663181
http://dx.doi.org/10.1111/asj.13176
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author Shibata, Masahiro
Hikino, Yasuko
Imanari, Mai
Matsumoto, Kazunori
author_facet Shibata, Masahiro
Hikino, Yasuko
Imanari, Mai
Matsumoto, Kazunori
author_sort Shibata, Masahiro
collection PubMed
description We investigated the effect of a system for fattening steers combining grazing with feeding rice whole‐crop silage (rWCS) on growth performance, meat characteristics, and the expression of genes involved in skeletal muscle growth. Steers were randomly assigned to grazing or concentrate‐fed groups (CT). The grazing group (GZ) was fed rWCS after grazing until 16 months of age. The final body weight was the same in the two groups, but the dressed weight was lower in the GZ than in the CT. The beef color standard was higher in the GZ than in the CT. Although beef marbling did not differ between the two groups, there was less intramuscular fat and subcutaneous fat in the GZ than in the CT. The α‐tocopherol and β‐carotene contents in the muscle were higher in the GZ than in the CT. The GZ showed a lower daily gain (DG) during the grazing period, which may have resulted from decelerating skeletal muscle growth caused by the increased expression of genes encoding myostatin and atrogin‐1. However, the DG and feed efficiency of the GZ increased after grazing. The two groups exhibited a similar level of beef productivity.
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spelling pubmed-82433472021-07-02 Comprehensive evaluation of growth performance and meat characteristics of a fattening system combining grazing with feeding rice whole‐crop silage in Japanese Black steers Shibata, Masahiro Hikino, Yasuko Imanari, Mai Matsumoto, Kazunori Anim Sci J ORIGINAL ARTICLES We investigated the effect of a system for fattening steers combining grazing with feeding rice whole‐crop silage (rWCS) on growth performance, meat characteristics, and the expression of genes involved in skeletal muscle growth. Steers were randomly assigned to grazing or concentrate‐fed groups (CT). The grazing group (GZ) was fed rWCS after grazing until 16 months of age. The final body weight was the same in the two groups, but the dressed weight was lower in the GZ than in the CT. The beef color standard was higher in the GZ than in the CT. Although beef marbling did not differ between the two groups, there was less intramuscular fat and subcutaneous fat in the GZ than in the CT. The α‐tocopherol and β‐carotene contents in the muscle were higher in the GZ than in the CT. The GZ showed a lower daily gain (DG) during the grazing period, which may have resulted from decelerating skeletal muscle growth caused by the increased expression of genes encoding myostatin and atrogin‐1. However, the DG and feed efficiency of the GZ increased after grazing. The two groups exhibited a similar level of beef productivity. John Wiley and Sons Inc. 2019-01-20 2019-04 /pmc/articles/PMC8243347/ /pubmed/30663181 http://dx.doi.org/10.1111/asj.13176 Text en © 2019 The Authors. Animal Science Journal published by John Wiley & Sons Australia, Ltd on behalf of Japanese Society of Animal Science. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle ORIGINAL ARTICLES
Shibata, Masahiro
Hikino, Yasuko
Imanari, Mai
Matsumoto, Kazunori
Comprehensive evaluation of growth performance and meat characteristics of a fattening system combining grazing with feeding rice whole‐crop silage in Japanese Black steers
title Comprehensive evaluation of growth performance and meat characteristics of a fattening system combining grazing with feeding rice whole‐crop silage in Japanese Black steers
title_full Comprehensive evaluation of growth performance and meat characteristics of a fattening system combining grazing with feeding rice whole‐crop silage in Japanese Black steers
title_fullStr Comprehensive evaluation of growth performance and meat characteristics of a fattening system combining grazing with feeding rice whole‐crop silage in Japanese Black steers
title_full_unstemmed Comprehensive evaluation of growth performance and meat characteristics of a fattening system combining grazing with feeding rice whole‐crop silage in Japanese Black steers
title_short Comprehensive evaluation of growth performance and meat characteristics of a fattening system combining grazing with feeding rice whole‐crop silage in Japanese Black steers
title_sort comprehensive evaluation of growth performance and meat characteristics of a fattening system combining grazing with feeding rice whole‐crop silage in japanese black steers
topic ORIGINAL ARTICLES
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8243347/
https://www.ncbi.nlm.nih.gov/pubmed/30663181
http://dx.doi.org/10.1111/asj.13176
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