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1
Welcome
Black Leg Disease
Presented by:
Nirvay Sah
B.V.Sc.& A. H. 9th
sem
Roll no: 22
2
3
Introduction
•It is sporadic acute febrile disease mainly of
cattle; buffalo and sheep
•caused by Clostridium chauvoei
•characterized by sero-haemorrhagic
crepitating swelling in heavy muscles of
gluteal and pre-scapular region due to the
production of toxin.
•It occurs in low-lying swampy grounds and
occurs in hotter months of the year.
4
Transmission
• It is a soil born infection.
• Contamination of wound,
• Ingestion of Infected feed,
• Sharing, docking, lambing, castration, etc.
5
Clinical Finding
Cattle & Buffalo
• High fever: 106 to 108ºF
• Pulse rate: 100 to 120/ min.
• Marked lameness with swelling in the upper part
of the limb or shoulder.
• Swelling is painful and hot but soon becomes cold
and painless.
• Crepitation can be felt in the swelling.
• Skin becomes dry, hard and dark.
• Animal dies within 12-36 hrs.
• Mortality-100%
Clinical Findings
Sheep & Goat
•High fever, Anorexia and depression
•Severe lameness and stiff joint
•No Crepitation
•Swelling of the head due to edema
•Bleeding from the nose
•Dis-coloration of the skin
•Ram is most susceptible than ewes.
•Death occurs quickly.
6
7
Diagnosis
• History and clinical signs
• By PM finding
• By Serological---FAT
• Biochemical Tests----LDH, SGOT &
SGPT, are significantly increased.
• By isolation of Cl. Chauvoei - from heart
blood, peritoneal fluid and affected
muscle.
• By biological test : 1ml of infected
materials in guinea pig--death within 48
8
Dark-red skeletal muscle of a
heifer showing haemorrhage,
necrosis, edema and emphysema.
9
Treatment
• Penicillin @ 10,000 IU/Kg. b.wt. b.i.d
daily for 3-5 days.
• Esgipyrine: LA @ 3 to 5 amp. I/M in
alternate days.
SA @ 1 amp. I/M
9
Treatment
• Penicillin @ 10,000 IU/Kg. b.wt. b.i.d
daily for 3-5 days.
• Esgipyrine: LA @ 3 to 5 amp. I/M in
alternate days.
SA @ 1 amp. I/M

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Black quarter (bq)

  • 2. Black Leg Disease Presented by: Nirvay Sah B.V.Sc.& A. H. 9th sem Roll no: 22 2
  • 3. 3 Introduction •It is sporadic acute febrile disease mainly of cattle; buffalo and sheep •caused by Clostridium chauvoei •characterized by sero-haemorrhagic crepitating swelling in heavy muscles of gluteal and pre-scapular region due to the production of toxin. •It occurs in low-lying swampy grounds and occurs in hotter months of the year.
  • 4. 4 Transmission • It is a soil born infection. • Contamination of wound, • Ingestion of Infected feed, • Sharing, docking, lambing, castration, etc.
  • 5. 5 Clinical Finding Cattle & Buffalo • High fever: 106 to 108ºF • Pulse rate: 100 to 120/ min. • Marked lameness with swelling in the upper part of the limb or shoulder. • Swelling is painful and hot but soon becomes cold and painless. • Crepitation can be felt in the swelling. • Skin becomes dry, hard and dark. • Animal dies within 12-36 hrs. • Mortality-100%
  • 6. Clinical Findings Sheep & Goat •High fever, Anorexia and depression •Severe lameness and stiff joint •No Crepitation •Swelling of the head due to edema •Bleeding from the nose •Dis-coloration of the skin •Ram is most susceptible than ewes. •Death occurs quickly. 6
  • 7. 7 Diagnosis • History and clinical signs • By PM finding • By Serological---FAT • Biochemical Tests----LDH, SGOT & SGPT, are significantly increased. • By isolation of Cl. Chauvoei - from heart blood, peritoneal fluid and affected muscle. • By biological test : 1ml of infected materials in guinea pig--death within 48
  • 8. 8 Dark-red skeletal muscle of a heifer showing haemorrhage, necrosis, edema and emphysema.
  • 9. 9 Treatment • Penicillin @ 10,000 IU/Kg. b.wt. b.i.d daily for 3-5 days. • Esgipyrine: LA @ 3 to 5 amp. I/M in alternate days. SA @ 1 amp. I/M
  • 10. 9 Treatment • Penicillin @ 10,000 IU/Kg. b.wt. b.i.d daily for 3-5 days. • Esgipyrine: LA @ 3 to 5 amp. I/M in alternate days. SA @ 1 amp. I/M