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Studies on the prevalence and diagnosis of subclinical iodine deficiency in buffaloes (Bubalus bubalis) |
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| รหัสดีโอไอ | |
| Creator | 1. Randhawa, C.S. 2. Randhawa, S.S. 3. Randhawa, Swaran S. 4. Dua, K. |
| Title | Studies on the prevalence and diagnosis of subclinical iodine deficiency in buffaloes (Bubalus bubalis) |
| Publisher | International Buffalo Information Centre, Office of The University Library, Kasetsart University, Bangkok (Thailand) |
| Publication Year | 2557 |
| Journal Title | Buffalo Bulletin |
| Journal Vol. | 33 |
| Journal No. | 2 |
| Page no. | 192-198 |
| Keyword | Buffaloes,Bubalus bubalis,Iodine deficiency,Plasma inorganic iodine,Thyroxine,Triiodothyronine,Iodized oil,Iodine injection,Iodine supplementation,India |
| ISSN | 1256726 |
| Abstract | A baseline survey for iodine status was conducted by measuring plasma inorganic iodine (PII) levels in 73 buffaloes from 67 dairy units located in the districts of Ludhiana, Jalandhar, Ferozepur and Hoshiarpur of Punjab. Concentrations of triiodothyronine (T3), thyroxine (T4), total cholesterol and free fatty acids (FFA) were compared between iodine deficient and normal buffaloes. Circulating T4 and T3 levels were determined before and after injection of ethiodised oil in animals with low PII levels. The prevalence rate of low iodine status was recorded to be 38.4 percent and varied between 26.3 to 50.0 percent among three age groups and 29.0 to 60.0 percent in different districts. Basal thyroxine (T4) and triiodothyronine (T3), T4: T3 ratio, total cholesterol and free fatty acids were not significantly affected by low iodine status. However, the activity of circulating T4, T4: T3 ratio increased and that of T3 decreased following iodine supplementation, thus suggesting that subclinical deficiency is prevalent. It may also be concluded from this study that elevation in T4 and T4: T3 ratio in response to iodine supplementation is a more sensitive diagnostic test of iodine deficiency than a single basal T4 and T3 assay. |
