Large Offspring

Difficulties in Birth of an Oversized Calf,Copyright RVC 2008

• Large offspring may pccur naturally, but is more common with Artificial Insemination with the semen of a large breed into a small dam.
• Passage of the foetus through the birth canal is restricted. The oversized foetus presents three barriers to delivery:
  • Head
  • Shoulders
  • Hips

Treatment

• Traction can be applied to assist delivery, but this carries the risk of pelvic fracture.
• Caesarian

Large Offspring Syndrome

• Only seems to arise with IVF treatment
• Foetus and internal organs are enlarged
• Musculoskeletal abnormalities
• Increased post-partum abnormalities and mortality