TY  - JOUR
T1  - The Effect of Feeding Different Levels of Potassium Iodide on Performance, T<SUB>3 </SUB>and T<SUB>4 </SUB>Concentrations and Iodine Excretion in Holstein Dairy Cows
AU - , M.A. Norouzian AU - , R. Valizadeh AU - , F. Azizi AU - , M. Hedayati AU - , A.A. Naserian AU - , F. Eftekhari Shahroodi 
JO  - Journal of Animal and Veterinary Advances
VL  - 8
IS  - 1
SP  - 111
EP  - 114
PY  - 2009
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2009.111.114
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2009.111.114
KW  - Potassium iodide
KW  -thyroidal hormones
KW  -iodine requirement
KW  -human health
AB  - Sixteen Holstein dairy cows with the average live body weight of 652&plusmn;43 and daily milk yield of 32.9&plusmn;2.4 kg allocated to 4 treatments in a complete randomized design with 4 replications to evaluate the effect of iodine supplementation on performance of dairy cow and iodine excretions especially in milk. The treatments were: basal diet (without Potassium Iodide) as the control diet, 2, 3 and 4, the basal diet plus 2.5, 5 and 7.5 mg kg<SUP>-1</SUP> diet DM Potassium Iodide, respectively. There were no significant difference between treatments for dry matter intake, milk yield and compositions and the milk production efficiency. Iodine contents in blood, urine, raw and pasteurized milk were significantly (p&lt;0.01) affected by the iodine supplementation. Blood T<SUB>3 </SUB>and T<SUB>4 </SUB>concentrations were not significantly affected by the treatments. No adverse effect of iodine supplementation on performance and health of dairy cow were detected in this study. It was concluded that iodine supplementation above of NRC recommendation (0.5 mg kg<SUP>-1</SUP> diet DM) led to a desirable level of iodine in the milk ready for human consumption without adverse effects on dairy cows performance and health. This finding could be an excellent recommendation for the area with iodine deficiency mainly for children's.
ER  -