Recognised Genetic Conditions

Angus Australia currently recognises the following genetic conditions:

  • Arthrogryposis Multiplex (AM)
  • Contractual Arachnodactyly (CA)
  • Neuropathic Hydrocephalus (NH)
  • Alpha Mannosidosis (MA)
  • Developmental Duplications (DD)
  • Dwarfism (DW)
  • Heterochromia Irides (HI)
  • Osteopetrosis (OS)
  • Syndactyl (SY)
  • Oculocutaneous Hypopigmentation (OH)

Further information regarding these genetic conditions is provided below.


Developmental Duplications
Laurence Denholm, Principal Policy Analyst, Trade and Investment NSW and Lisa Martin, District Veterinarian, New England Livestock Health and Pest Authority (LHPA)

Introduction: In December 2011 we reported an increased incidence of polymelia (notomelia, cephalomelia and pygomelia) in Angus cattle which appeared to be transmitted as a heritable disorder. Here we present an update on our more recent work in this heritable syndrome.

To view the full article – CLICK HERE


Congenital Contractural Arachnodactyly
Dr Laurence Denholm, BVSc(Hons) DipAgSc LLB(Hons) PhD (Cornell)

Introduction: Congenital contractural arachnodactyly (CA), also known as “fawn calf” syndrome (FCS), is a heritable disease of newborn Angus and Angus-derived cattle caused by an error in the DNA genetic code transmitted from parents to their progeny

To view the full article – CLICK HERE


Oculocutaneous Hypopigmentation (OH)

Introduction: Oculocutaneous Hypopigmentation (OH) is a non-lethal genetic condition and is largely cosmetic in nature. Affected calves have eyes with irises that are pale blue around the pupil with a tan periphery. Their hair coats have a slightly bleached color. While some affected calves have sensitivity to light, they are believed to be otherwise normal functionally and physiologically.

To view the full article – CLICK HERE


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