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Effects of heat stress on production, somatic cell score and conception rate in Holsteins
https://obihiro.repo.nii.ac.jp/records/1259
https://obihiro.repo.nii.ac.jp/records/1259c9046bad-f227-47ff-a4ca-83af500d40af
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
FIRST_LOOK_PDF0001.pdf (760.0 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-01-11 | |||||
| タイトル | ||||||
| タイトル | Effects of heat stress on production, somatic cell score and conception rate in Holsteins | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | genetic correlation | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | heat-stress | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Holsteins | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | temperature-humidity index (THI) | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
萩谷, 功一
× 萩谷, 功一× Hayasaka, Kiyoshi× Yamazaki, Takeshi× Shirai, Tatsuo× Osawa, Takefumi× 寺脇, 良悟× Nagamine, Yoshitaka× 増田, 豊× 鈴木, 三義 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We examined the effects of heat stress (HS) on production traits, somatic cell score (SCS) and conception rate at first insemination (CR) in Holsteins in Japan. We used a total of 228242 records of milk, fat and protein yields, and SCS for the first three lactations, as well as of CR in heifers and in first- and second-lactation cows that had calved for the first time between 2000 and 2012. Records from 47 prefectural weather stations throughout Japan were used to calculate the temperature-humidity index (THI); areas were categorized into three regional groups: no HS (THI<72), mild HS (72THI<79), and moderate HS (THI79). Trait records from the three HS-region groups were treated as three different traits and trivariate animal models were used. The genetic correlations between milk yields from different HS groups were very high (0.91 to 0.99). Summer calving caused the greatest increase in SCS, and in the first and second lactations this increase became greater as THI increased. In cows, CR was affected by the interaction between HS group and insemination month: with summer and early autumn insemination, there was a reduction in CR, and it was much larger in the mild- and moderate-HS groups than in the no-HS group. | |||||
| 言語 | en | |||||
| 書誌情報 |
en : Animal Science Journal 巻 88, 号 1, p. 3-10, 発行日 2017 |
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| 出版者 | ||||||
| 出版者 | Wiley-Blackwell | |||||
| 言語 | en | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 13443941 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA11677214 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.1111/asj.12617 | |||||
| 権利 | ||||||
| 言語 | en | |||||
| 権利情報 | This is the peer reviewed version of the following article: Animal Science Journal: 88(1); JAN 2017; 3-10, which has been published in final form at http://doi.org/10.1111/asj.12617. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 著者版フラグ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 645 | |||||
