Occurrence of Hairless Piglets with Congenital Goiter

선천성 갑상선종에 의한 무모 돼지 발생

  • Kim, Jae-hoon (Department of Veterinary Medicine, Cheju National University) ;
  • Sohn, Hyun-joo (National Veterinary Research and Quarantine Service) ;
  • Kim, Hyoung-ook (Laboratory of Comparative Pathology, Graduate School of Veterinary Medicine, Hokkaido University) ;
  • Jean, Young-hwa (National Veterinary Research and Quarantine Service)
  • 김재훈 (제주대학교 수의학과) ;
  • 손현주 (국립수의과학검역원 병리과) ;
  • 김형욱 (북해도대학 수의과대학) ;
  • 진영화 (국립수의과학검역원 병리과)
  • Accepted : 2003.08.23
  • Published : 2003.09.25

Abstract

A diagnosis of iodine-deficient goiter was confirmed in newborn piglets that were born hairless edematous, and with markedly enlarged thyroid gland. Clinically, most of the piglets were born dead, extreme weakness or dying within a few hours of birth. Gestation periods were prolonged for 3-7 days. Histopathologically, hair follicles were scarce and reduced in size, contained slender hairs, and revealed a shallow penetration into the hypodermis that showed severe diffuse edema. Thyroid glands had severely hyperplastic follicles and poorly staining colloid. The follicles were irregular in size and shape depending on varying amounts of lightly eosinophilic and granular colloid in the lumen. The iodine content of the diet fed to the sows and plasma total thyroxine and triiodothyronine concentration of sows were very low. This is a first report for iodine-deficient goiter in newborn piglets in Korea.

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