Sheep Diseases

1. Cairo university
Faculty Of Veterinary Medicine
Dept. Of Internal Medicine And Infectious Diseases
Course No. 452
Infectious diseases of sheep & goat

2. Parasitic Disease

3. Alopecia can be seen on the sheep's body.

5. Alopecia and scales can be seen on goat's head.
Psoroptic mange

6. A goat with generalised lesions.

8. Demodectic Mange
Nodules surrounding A goat's lip, nares and eyes.

9. Nodules have been exposed by clipping the hair,
and exudate has been expressed from one Nodule

10. Sarcoptes mite

11. Sarcoptes mite

12. Psorptes mite

13. Demodex mite

14. Tick
This engorged tick is attached below the chin.

15. Adult Tick

17. Cutaneous myiasis
Numerous maggots are feeding on the skin surface.

18. biting louse
Note the broad
head and a tan
body.
sucking louse
Note the narrow
head and a blood-
filled body.

19. Oestrus Ovis
Larva of Oestrus Ovis in the nasal cavity

20. Oestrus Ovis
Larvae and pupa of Oestrus Ovis

23. Fascioliasis
Mature flukes in the bile ducts.

24. Fascioliasis
Chronic fibrous thickening of the bile ducts.

25. Fascioliasis
Bile-stained ova in faeces, with the operculum.

26. A sheep with submandibular oedema (“bottle jaw”).

27. Haemonchosis
Severe anemia in acute infection.

28. Adult Lung worm in lung tissue

29. Lung worm larva

30. Lung worm larva

31. Moniezia expansa
Strobila in the lumen of the intestine.

32. Moniezia expansa
lamb intestine.

33. Moniezia expansa
A tapeworm from an infected lamb.

34. Moniezia eggs

35. Nematodirus egg

36. P.G.E. egg

37. Hydatid cysts in a sheep liver.

38. (Coenurus cerebralis infection).

39. Coenurus cerebralis Cyst

40. Coccidiosis
Eimeria infection in a goat.
Coccidiosis
Eimeria lesions in a sheep.

41. Un-sporulated Oocysts of
Eimeria sp.
Sporulated Eimeria
oocyst

42. Babesiosis. in sheep red cells. Giemsa stain.

44. A mixed infection by babesia and Theileriosis.

45. Theileriosis.
Erythrocytic forms of (T. hirci) in a blood smear. Giemsa stain.

46. Viral Disease

47. Contagious Pastular Dermatitis

48. The lesion at the mouth commissure, around the
nares and around the eye
C.P.D

49. Strawberry footrot
Note The Lesion on The mouth

50. Note the lesion on and around the teats
C.P.D

52. Facial oedema with Mucopurulent to bloody nasal discharge.
Bluetongue

53. Bluetongue
Crusts round the eyes and nares.

54. Intense congestion and swelling of lips and gums
and sloughing of the dental pad mucosa.
Blue tongue.

55. Bluetongue
Lameness and tiptoe stance in the acute disease.

56. Bluetongue
Lesions at the coronary band.

57. Foot-and-mouth disease.
Acute lameness.

58. Foot-and-mouth disease
Lip erosions and blanching of the dental pad.

59. Foot-and-mouth disease
Vesicle on the coronary band.

60. Foot-and-mouth disease
Tiger-striping of the myocardium.

61. Sheep pox
Pox lesion around nostrils and eye

62. Sheep pox. Pulmonary lesions.Sheep pox .
nodules in the lungs (pulmonary form)

64. Bacterial Disease

65. Anthrax bacilli in sheep blood

66. Black disease.
A focal necrotic lesion in the liver.

67. Lamb dysentery
Blood-stained tail and hind-quarters.

68. Struck
Localized enterotoxaemia in the small intestine.

69. Lamb dysentery
Acute enteritis.

70. Pulpy kidney
Necrotic 'cotton-wool' kidney cortex.

71. Blackleg
Note the blackened area of acute muscle necrosis.

72. Salmonellosis
Engorged liver with distension of the gall bladder.

73. Tick pyaemia
Multiple liver abscesses.

74. Listeriosis

75. Listeriosis
Facial paralysis in a lamb

76. Tetanus
Note the characteristic tail position.

77. Tetanus
Characteristic rigidity in a recumbent buck.

78. Caseous lymphadenitis
note the lesion under the ear

79. Caseous lymphadenitis
abscesses in a sheep lung.

80. Brucella melitensis
Necrotic cotyledons in aborted material.

81. Brucella melitensis
A stillborn fetus with necrotic placenta.

82. Brucellosis.
Edema and swelling of scrotum

83. Dermatophilosis ”lumpy wool”.
Wool fibers matted together by exudate

84. Dermatophilosis
Thick crusts cover this goat's dorsum after
prolonged exposure to rain.

85. Dermatophilosis
Crusty,scaly lesions involve this goat's head, ears &
neck.

86. Dermatophilosis

87. Dermatophilosis
This smear from
the underside of a
crust shows the
parallel
arrangement of the
organisms by Gram
stain.

88. Footrot
This lame sheep is forced to graze on its limbs

90. Footrot
The sole has been under run and perforated in several places.

91. Footrot
The claws are deformed by a severe, chronic infection.

93. Footrot
Fly strike on the hoof of a sheep.

94. Fungal Disease

95. Ringworm
Wool loss and erythema caused by dermatophytes.

96. Ringworm
Goat skin with alopecia and crusting.