Theileria-free grazing of dairy heifers on grassland in Kyushu, Japan where T. orientalis was epidemic before a 7-year vacancy

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...

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Autores principales: FUKUSHIMA, Yuki, MINAMINO, Tomoya, HONKAWA, Kazuyuki, TANIGUCHI, Takako, HORII, Yoichiro, SASAKI, Yosuke
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Japanese Society of Veterinary Science 2022
Materias:
Parasitology
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9177405/
https://www.ncbi.nlm.nih.gov/pubmed/35354695
http://dx.doi.org/10.1292/jvms.21-0666
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author FUKUSHIMA, Yuki
MINAMINO, Tomoya
HONKAWA, Kazuyuki
TANIGUCHI, Takako
HORII, Yoichiro
SASAKI, Yosuke
author_facet FUKUSHIMA, Yuki
MINAMINO, Tomoya
HONKAWA, Kazuyuki
TANIGUCHI, Takako
HORII, Yoichiro
SASAKI, Yosuke
author_sort FUKUSHIMA, Yuki
collection PubMed
description 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.
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spelling pubmed-91774052022-06-13 Theileria-free grazing of dairy heifers on grassland in Kyushu, Japan where T. orientalis was epidemic before a 7-year vacancy FUKUSHIMA, Yuki MINAMINO, Tomoya HONKAWA, Kazuyuki TANIGUCHI, Takako HORII, Yoichiro SASAKI, Yosuke J Vet Med Sci Parasitology 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. The Japanese Society of Veterinary Science 2022-03-31 2022-05 /pmc/articles/PMC9177405/ /pubmed/35354695 http://dx.doi.org/10.1292/jvms.21-0666 Text en ©2022 The Japanese Society of Veterinary Science https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License. (CC-BY-NC-ND 4.0: https://creativecommons.org/licenses/by-nc-nd/4.0/)
spellingShingle Parasitology
FUKUSHIMA, Yuki
MINAMINO, Tomoya
HONKAWA, Kazuyuki
TANIGUCHI, Takako
HORII, Yoichiro
SASAKI, Yosuke
Theileria-free grazing of dairy heifers on grassland in Kyushu, Japan where T. orientalis was epidemic before a 7-year vacancy
title Theileria-free grazing of dairy heifers on grassland in Kyushu, Japan where T. orientalis was epidemic before a 7-year vacancy
title_full Theileria-free grazing of dairy heifers on grassland in Kyushu, Japan where T. orientalis was epidemic before a 7-year vacancy
title_fullStr Theileria-free grazing of dairy heifers on grassland in Kyushu, Japan where T. orientalis was epidemic before a 7-year vacancy
title_full_unstemmed Theileria-free grazing of dairy heifers on grassland in Kyushu, Japan where T. orientalis was epidemic before a 7-year vacancy
title_short Theileria-free grazing of dairy heifers on grassland in Kyushu, Japan where T. orientalis was epidemic before a 7-year vacancy
title_sort theileria-free grazing of dairy heifers on grassland in kyushu, japan where t. orientalis was epidemic before a 7-year vacancy
topic Parasitology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9177405/
https://www.ncbi.nlm.nih.gov/pubmed/35354695
http://dx.doi.org/10.1292/jvms.21-0666
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