Metabolism of Thyroxine in Hyperthyroidism in Cattle.
- 1 April 1961
- journal article
- research article
- Published by Frontiers Media SA in Experimental Biology and Medicine
- Vol. 106 (4) , 818-819
- https://doi.org/10.3181/00379727-106-26486
Abstract
When dairy cows were maintained in a hyperthyroid condition by injection of T4 50% above their winter TSR (thyroid secretion rate), it was observed that rate of disappearance of thyroxine-I131 from blood was doubled. Increasing T4 injection to 100% above winter TSR further decreased t1/2. Milk production in all cows at 50% above normal level of T4 increased 20% or more and the increase was sustained for many weeks. Increase to 100% above normal level of T4 had little or no further influence upon lactation.Keywords
This publication has 1 reference indexed in Scilit:
- The Biological Half-Life of L-Thyroxine and L-Triiodothyronine in the Blood of the Dairy CowJournal of Dairy Science, 1959