Abstract
In this study, iodine and thyroxin (T4) concentrations in the serum of 69 horses were investigated. Higher iodine concentrations were obtained from the horses housed in Chiba Prefecture. In contrast, T4 concentrations of horses at Shizuoka Prefecture were higher than those of horses at Chiba Prefecture. There was a significant correlation (r = 0.643, P < 0.001) between the iodine and T4 concentrations of horses at Saitama and Shizuoka prefectures. Although a significant correlation (r = 0.794, P < 0.001) was also observed in the investigation of all horses at Chiba Prefecture, the distribution area of the data was separated from the data of horses housed in Saitama and Shizuoka prefectures. A higher iodine concentration in the environment is expected in the sampling area at Chiba Prefecture. Thus, it was suggested that the concentrations of iodine in the serum of horses are influenced by geological differences. It was thought that equine serum is a useful sample for monitoring.
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References
Bhutta, Z. A., & Salam, R. A. (2012). Global nutrition epidemiology and trends. Annals of Nutrition and Metabolism, 61(Suppl. 1), 19–27.
Japan Racing Association (JRA) (1995). Normal values of racehorse, 3rd ed., Equine Research Institute, Japan Racing Association (in Japanese).
Japan Racing Association (JRA). (2004). Japanese feeding standard for horses, Equine Research Institute, Japan Racing Association. Tokyo: Animal media Inc (in Japanese).
Kaneko, N. (2005). Natural gas and iodine resources in Chiba Prefecture, Japan. Chisitu News, 605, 33–35 (in Japanese).
Launer, P., & Richte, O. (2005). Iodine concentration in the blood serum of milk cows from Saxony as well as in cows’ milk and milk products (baby food). Berliner und Münchener Tierärztliche Wochenschrift, 118, 502–508. Article in German.
Malinowski, K., Christensen, R. A., Hafs, H. D., & Scanes, C. G. (1996). Age and breed differences in thyroid hormones, insulin-like growth factor (IGF)-I and IGF binding proteins in female horses. Journal of Animal Science, 74(8), 1636–1942.
Mochizuki, M., Mori, M., Hondo, R., & Ueda, F. (2008). A new index for evaluation of cadmium pollution in birds and mammals. Environmental Monitoring and Assessment, 137(1–3), 35–49.
Mochizuki, M., Morikawa, M., Yogo, T., Urano, K., Ishioka, K., Kishi, K., Hondo, R., Ueda, F., Sako, T., Sakurai, F., Yumoto, N., & Tagawa, M. (2011). The distribution of several elements in cat urine and the relation between the content of elements and urolithiasis. Biological Trace Element Research, 143(2), 913–922.
Mochizuki, M., Anahara, R., Mano, T., Nakayama, Y., Kobori, M., Omi, T., Matsuoka, S., & Ueda, F. (2012a). Investigation of cadmium contamination using hair of the Japanese macaque, Macaca fuscata, from Shimokita Peninsula, Aomori Prefecture in Japan. Bulletin of Environmental Contamination and Toxicology, 89(3), 577–579.
Mochizuki, M., Kitamura, T., Okutomi, Y., Yamamoto, H., Suzuki, T., Mori, M., Hondo, R., Yumoto, N., Kajigaya, H., & Ueda, F. (2012b). Biological monitoring using new cadmium indexes: cadmium contamination in seabirds. In L. V. Berhardt (Ed.), Advances in medicine and biology (Vol. 33, pp. 173–186). New York: Nova.
Mochizuki, M., Yamamoto, H., Yamamura, R., Suzuki, T., Ochia, I. Y., Kobayashi, J., Kawasumi, K., Arai, T., Kajigaya, H., & Ueda, F. (2013). Contents of various elements in the organs of seabirds killed by an oil spill around Tsushima Island, Japan. Journal of Veterinary Medical Science, 75(5), 667–670.
Nagai, Y. (2012). The common question from patients. In A. Miyauchi (Ed.), Golden handbook for thyroid and parathyroid disease (pp. 205–216). Tokyo: Nankodo (in Japanese).
Rey-Crespo, F., López-Alonso, M., & Miranda, M. (2014). The use of seaweed from the Galician coast as a mineral supplement in organic dairy cattle. Animal, 8(4), 580–586.
Sibui, H. (2012). The ration for livestock. In The compound feeds, Midori Shobo Co., Ltd. pp. 482–502
Stark, G., Schneider, B., & Gemeiner, M. (2001). Zinc and copper plasma levels in Icelandic horses with Culicoides hypersensitivity. Equine Veterinary Journal, 33(5), 506–509.
Streeter, R. M., Divers, T. J., Mittel, L., Korn, A. E., & Wakshlag, J. J. (2012). Selenium deficiency associations with gender, breed, serum vitamin E and creatine kinase, clinical signs and diagnoses in horses of different age groups: a retrospective examination 1996–2011. Equine Veterinary Journal, 44(Suppl 43), 31–35.
Takahasi, F. (2013). Study on the development of a rapid analytical method for inorganic elements in animal blood. Dissertation, Nippon Veterinary and Life Science Univ., Japan. (in Japanese with English abstract), http://id.nii.ac.jp/1135/00000028/. Accessed 14 Jan 2016.
Ueda, F., Mochizuki, M., Mori, M., & Hondo, R. (2009). A new technique for biological monitoring, Proceedings of 5th international conference on energy, environment, ecosystem and sustainable development. In N. Mastorakis, C. Helmis, C. D. Papageorgiou, C. A. Bulucea and T. Panagopoulos (Eds.), Energy, environment, ecosystems, development and landscape architecture, Energy and environmental engineering series (pp. 176–184). World scientific and engineering academy and society press.
Van Weeren, P. R., Knaap, J., & Firth, E. C. (2003). Influence of liver copper status of mare and newborn foal on the development of osteochondrotic lesions. Equine Veterinary Journal, 35(1), 67–71.
World Health Organization (WHO) (2009). Concise International Chemical Assessment Document, No.72, Iodine and inorganic iodine. (in Japanese, trans to Japanese by National Institute of Health Sciences in Japan).
Yanai, J., Aoki, S., Ozaki, M., Tanaka, Y., Shimotomai, A., & Yamada, H. (2013). Iodine and bromine concentration in agricultural soils of Japan in relation to soil type and region. Japanese Journal of Soil Science and Plant Nutrition, 84(2), 85–89 (in Japanese with English abstract).
Acknowledgments
The authors express their thanks to Mr. Takanori Ban at the Green Hill Riding Club, Ms. Tomoko Yoneya at the I’ll Horse Riding Club, Ms. Keiko Hasegawa at Minimini club, and Mr. Yasuhiro Nakajima, Ms. Kumi Sato, and Ms. Yuko Yokoi at the Palomino Pony Club for their help in sample collection. This study was supported by Grant-in Aid number 23580430 from the Ministry of Education, Science, Sports, Culture and Technology in Japan.
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The present study was conducted following the ethical policies of the Nippon Veterinary and Life Science University, Japan, for experimental animals.
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Mochizuki, M., Hayakawa, N., Minowa, F. et al. The concentration of iodine in horse serum and its relationship with thyroxin concentration by geological difference. Environ Monit Assess 188, 226 (2016). https://doi.org/10.1007/s10661-016-5221-7
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DOI: https://doi.org/10.1007/s10661-016-5221-7