Gifford, C A Serum thyroid hormones and performance of offspring in ewes receiving propylthiouracil with or without melatonin. [electronic resource] - Animal reproduction science Jul 2007 - 32-43 p. digital Publication Type: Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't ISSN: 0378-4320 Standard No.: 10.1016/j.anireprosci.2006.06.016 doi Subjects--Topical Terms: AnimalsBody Weight--drug effectsDose-Response Relationship, DrugEstrous Cycle--drug effectsFemaleHypothyroidism--bloodMelatonin--pharmacologyPregnancyProgesterone--bloodPropylthiouracil--pharmacologyReproduction--drug effectsSeasonsSheep--bloodThyroxine--bloodTime FactorsTriiodothyronine--blood