الفهرس 
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Abstract
This work was carried out to investigate the influence of addition of potassium iodide salts on rumen function , thyroid hormones Triiodothyronine (T3) , Thyroxine (T4) , (TSH) ,body weight gain ,blood cellular constituent and serum biochemical constituents in goats sheep and in Egypt.
(35) Fattening sheep and (15) fattening goats belonging to: farm of Faculty of Agriculture , Cairo University were divided as: sheep Control group (16) only in measurement of body weight gain and sheep experimental group (19) .
Their ages ranged between (6-11 months) in experimental group and (8-9 months ) in control group while goats Control group (8) only in measurement of body weight gain and goats experimental group (7). In all other parameters; experimental group at zero day was the control.
Their ages ranged between (6-11 months) in experimental group and (8-9 months) in control group.
This study extended to about 2 month at (zero, 15, 30 and 65 days). Sheep and goats drank potassium iodide dissolved in distilled water in the morning with dose 4.9 mg. KI / animal / day for sheep and 3.8 mg. KI / animal / day for goats
The study resulted in significant increase in body weight gain , Thyroid hormones still in normal range , changes in blood urea nitrogen and glucose level and changes in hematological parameters.