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アイテム
Reevaluating the economic impact of bovine leukemia virus in beef production: no association between infection and carcass weight in Japanese Black cattle
http://hdl.handle.net/10458/0002002261
http://hdl.handle.net/10458/00020022616b2e8063-1ac9-45c6-a41e-f222514a8f3b
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| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||||||||||||||||||
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| 公開日 | 2026-02-03 | |||||||||||||||||||||
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| タイトル | Reevaluating the economic impact of bovine leukemia virus in beef production: no association between infection and carcass weight in Japanese Black cattle | |||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
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| 言語 | eng | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
| キーワード | Japanese black cattle | |||||||||||||||||||||
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| 言語 | en | |||||||||||||||||||||
| キーワード | bovine leukemia virus | |||||||||||||||||||||
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| 言語 | en | |||||||||||||||||||||
| キーワード | carcass weight | |||||||||||||||||||||
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| 言語 | en | |||||||||||||||||||||
| キーワード | proviral load | |||||||||||||||||||||
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| 言語 | en | |||||||||||||||||||||
| キーワード | sex | |||||||||||||||||||||
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| 資源タイプ | journal article | |||||||||||||||||||||
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| アクセス権 | open access | |||||||||||||||||||||
| 著者 |
Takezaki, Yuka
× Takezaki, Yuka
× Notsu, Kousuke
× 金子, 泰之
WEKO
27778
× 関口, 敏
WEKO
24383
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| 内容記述タイプ | Abstract | |||||||||||||||||||||
| 内容記述 | Bovine leukemia virus (BLV) is a retrovirus that infects bovine B lymphocytes and causes enzootic bovine leukosis in approximately 1%-5% of infected cattle. Although recent studies have shown that older Holstein cattle with a high proviral load (PVL) exhibit significantly reduced carcass weight, the impact of BLV infection on young fattening cattle remains unclear. In this study, we investigated the relationship between BLV infection and carcass weight in fattening Japanese Black cattle, a breed of high economic importance in beef production, worldwide. A total of 474 blood samples were collected from slaughterhouses in Kyushu, Japan. Cattle were classified into enzyme-linked immunosorbent assay (ELISA)-negative and ELISA-positive groups to assess the effect of BLV infection, and PVL was quantified. No significant differences in carcass weight were observed between ELISA groups, and no significant correlation was found between carcass weight and PVL. These findings suggest that subclinical BLV infection does not directly affect carcass weight in fattening Japanese Black cattle. Although BLV may not cause immediate economic losses in beef production, potential long-term effects and breed-specific responses warrant further investigation. To minimize economic losses while maintaining practical disease control, strategic herd management approaches are essential. We propose that BLV-infected cattle, particularly high-risk animals with elevated PVL, be separated from uninfected cattle during fattening and subsequently shipped for processing. This strategy may offer a realistic, economically viable, and low-burden approach to controlling BLV transmission in beef herds. | |||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
| 書誌情報 |
en : The Journal of veterinary medical science 巻 88, 号 2, p. 210-216, 発行日 2026 |
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| 出版者 | Japanese Society of Veterinary Science | |||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
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| 収録物識別子タイプ | EISSN | |||||||||||||||||||||
| 収録物識別子 | 13477439 | |||||||||||||||||||||
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| 関連タイプ | isVersionOf | |||||||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||||||
| 関連識別子 | https://doi.org/10.1292/jvms.25-0528 | |||||||||||||||||||||
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| 権利情報 | © 2026 by the Japanese Society of Veterinary Science | |||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
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| 出版タイプ | VoR | |||||||||||||||||||||
