ササキ　ヨウスケ   SASAKI YOSUKE   佐々木　羊介    所属   明治大学  農学部    職種   専任准教授
言語種別	英語
発行・発表の年月	2022/05
形態種別	学術雑誌
標題	Theileria-free grazing of dairy heifers on grassland in Kyushu, Japan where T. orientalis was epidemic before a 7-year vacancy.
執筆形態	共著(筆頭者以外)
掲載誌名	The Journal of veterinary medical science
掲載区分	国外
巻・号・頁	84(5),pp.628-633
担当区分	最終著者,責任著者
著者・共著者	Yuki Fukushima, Tomoya Minamino, Kazuyuki Honkawa, Takako Taniguchi, Yoichiro Horii, Yosuke Sasaki
概要	This study aimed to produce a Theileria-free grazing system for Holstein heifers reared on a dairy farm in the Hita area, Kyushu, Japan. In the grazing area, spreading of T. orientalis infection was confirmed in 2009. To eradicate the T. orientalis infection, four measures were conducted: 1) 7-year deferred grazing; 2) grazing only T. orientalis-uninfected heifers; 3) anemia check by red blood cell parameters at least once per month; and 4) protecting heifers from blood-sucking T. orientalis-infected ticks. Grazing was restarted in 2017 in the same area and continued to 2021. During last 2 years of pasturing (2020-2021) all of the 129 heifers were confirmed to be T. orientalis-free. In summary, it is possible to establish a T. orientalis-free grazing system by conducting appropriate measures.
DOI	10.1292/jvms.21-0666
PMID	35354695