Meat Inspection Practicals

Question 1

What is it?

Which animals have it?

How is it transmitted?

Where do you look for it?

OV Decision?

Answer 1

What is it? Glanders

Which animals have it? Horses

How is it transmitted?

Where do you look for it?

• Head split in median plane and nasal septum excised
• Exam the mucous membranes of the trachea, larynx, nasal cavities, sinuses

OV Decision? TOTAL REJECTION

Question 2

What is it?

Which animals get it?

Any slaughterhouse precautions?

Where do you look for it?

OV Decision?

Answer 2

What is it? Brucellosis

Which animals get it? Bovines

Any slaughterhouse precautions?

• Must be slaughtered separately to avoid contamination of other carcases, the slaughter line, and staff

Where do you look for it?

• ABortion in the last 3-4 months of pregnancy
• Edematous placenta and fetus
• Retention of foetal membranes with signs of infection in the membranes
• Occasional inflammation of the testes and epididymis
• Swelling scrotum
• Hygromas on the knees
• Yellow areas of degeneration and debris in most cotyledons and intercotyledonary spaces

OV Decision?

• Reject: udder, genital tract, and blood
• TOTAL REJECTION IF ACUTE

Question 3

What is it?

Which animals get it?

Where do you look for it?

OV Decision?

Answer 3

What is it? Cysticercosis

Which animals get it?

• Cysticercus bovis = bovines
• Cysticercus cellulose = pig
• Cysticercus ovis = sheep, goat

Where do you look for it?

• The cysts are small (10mm diameter), grey, and often calcified
• Bovis: muscle of cattle (heart, diaphragm and cheek)

OV Decision?

• Bovis
  
  • More than one viable/caseous lesion = generalised = TOTAL REJECTION
  • One viable/caseous lesion = Local rejection with cold storage of remaining
  • One or more non-viable lesion = Local rejection with release of rest of carcase
• Ovis
  
  • Local rejection
  • TOTAL IF GENERALIZED