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Vitamin Deficiency Symptoms Vitamin A deficiency Xeropthalmia in rat - dryness of the cornea Early stages are curable Cured with 6 days treatment with Vitamin A Late Stages are incurable - Vitamin A deficiency Clouding of cornea, ulceration, keratomalacia

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Presentation Transcript
slide2
Vitamin A deficiency
  • Xeropthalmia in rat - dryness of the cornea
  • Early stages are curable
slide4

Late Stages are incurable - Vitamin A deficiency

  • Clouding of cornea, ulceration, keratomalacia
vitamin a deficiency night blindness

Vitamin A deficiency Night Blindness

Imagine you are in the car at the left and this is what you see.

slide7

Normal vision

Car passes. Notice distance down the road, signs.

slide8

Eye fails to adapt quickly to decreased light.

Night Blindness

Car passes. Notice distance down the road, signs.

Car passes. Notice distance down the road, signs.

slide9

Vitamin A deficiency. Human shoulder.

Follicular hyperkeratosis. Goose flesh. Pustulation occurs and is confused with acne.

slide10

Histological section of skin. Hair follicle with hyperkeratosis. (Excess keratinized tissue).

slide13

Riboflavin deficiency. Generalized dermititis & growth failure. Marked keratitis of cornea.

slide16

Thiamin deficiency - Polyneuritis. Arched back & hyperextended legs, spastic gait, loss of balance.

slide27

Normal rat seminiferous tubules of testis showing spermatatids. Vitamin E sufficient.

slide28

Intermediate stage of degeneration from Vit E deficiency. Sperm production has ceased. Still reversible.

slide32

Muscular dystrophy from Vit E deficiency. Guinea pig muscle fiber fragmentation, degeneration & necrosis. Lots of infiltrating neutraphils, etc.

slide36

It’s a brain of a baby.

Vit K deficiency in man. Hemorrhagic disease of newborn. Reason for Vit K injection at birth.

slide37

Vit A: Trachea, Keratinizing metaplasia. The flat layer of cells at the surface shouldn’t be there.

farm animals

Farm Animals

The following slides, though not of the highest quality, illustrate some of the vitamin deficiencies in livestock.

slide42

Vit A: 6 mo old calves. Calf in rear got 20 ml cod liver oil. Deficient calf in front was blind.

slide50

Vit A deficiency in pig on the right

Xeropthalmia (on rt.)

Paralysis of hind limbs.

slide51

Lamb with stiff lamb

disease from Vitamin E

deficiency.

Muscle showing white streaks where degeneration occurs.

slide52

Vitamin E deficiency: Mulberry Heart disease.

Note massive white streaks of degeneration.

slide53

Pantothenic acid deficiency.

Typical Goose Stepping - incoordination.

slide55

Thiamine: Polyneuritis. Baby lamb is functional

nonruminant. Head retraction, incoordination.

slide56

Riboflavin

Top pig is markedly

smaller, poor doing,

poor hair coat and

skin.

slide57

Riboflavin

deficiency

Poor reproductive

performance;

stillborn pigs.

slide58

Niacin deficiency

Note difference in

growth and

condition.

slide60

Intestine: Niacin deficiency results in necrotic enteritis, ulceration. (Therefore extremely poor absorption; scouring).

slide61

B6 (Pyridoxine) deficiency

Pig showing an epilectic-like seizure

slide62

B6 (Pyridoxine) deficiency

Pigs showing marked difference in growth

slide63

Biotin deficiency

Skin lesions

slide64

Biotin deficiency

Epithelial lesions on foot of chickens

slide65

B12 deficiency

Note difference in growth and condition.

Pig at top has not grown as well and has

rougher skin and hair coat.