Assistant Professor Department of Veterinary Clinical Complex UNIT3 Most specific clinical manifestation of iodine deficiency is abnormal enlargement of thyroid glands Known as Goitre Etiology ID: 929115
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Slide1
IODINE DEFICIENCY
Dr. Vivek Kr. Singh Assistant ProfessorDepartment of Veterinary Clinical Complex
UNIT-3
Slide2Most specific clinical manifestation of iodine deficiency is
abnormal enlargement of thyroid glandsKnown as
Goitre
Slide3Etiology
Primary Iodine deficiency due to inadequate intake of iodine/ iodine deficient diet
Secondary iodine deficiency is due to
other factors
interfering in the
bio-availability
and
utilization
of iodine
Excessive intake of calcium
Prolonged intake of feed containing
cynogenetic glucosides
like fodders and cakes of different
Brassica sp. White clover
and
linseed cake
Intake of
mimosine
containing plants
Slide4Epidemiology
Pockets of iodine-deficient areas are found in different parts of IndiaMain cause of deficiency is heavy rain fall
and depletion of soil iodine
by leaching
Giotre has been reported in
Horses, cattle, goats and sheep
Slide5Pathogenesis
Slide6Clinical findings
Animals of all species are weak and lethegicFace is generally
blunt and large
Body
coat rough
Oedema
of dependent organs like
lower limbs
Reduced milk yield
Silent oestrus, abortion, stillbirth and birth of weak calf
Sheep, goats and pigs
show marked
hairlessness
Slide7Diagnosis
Clinical signsIodine status of serum or plasma
Value and ratio of
T
3
and
T
4
Slide8Treatment
Oral administration of 280mg/ head potassium iodide to pregnant ewes can control iodine deficiency
Lambs with goitre can be administered
20mg potassium iodide orally once
Painting 5% tincture iodine
on the
flank
once a week in milking dairy cattle can work well
Intra ruminal boluses
provide slow release of iodine for
6 months
Slide9Thank
You