Congenital myotonia, characteristic of Fainting Goats, is a heritable neuromuscular disorder characterized by a slow relaxation of skeletal muscles following voluntary contraction. The sudden muscle stiffness often causes the animal to fall over briefly.

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Phenotype:

Affected goats become stiff and immobile, and often fall over briefly, following sudden forceful movements or when startled.

 

Mode of Inheritance:

Autosomal recessive

 

Alleles:

N = Normal, CM = Myotonia Congenita

 

Breeds appropriate for testing:

Myotonic or Tennessee Fainting Goat and their crosses, Nigerian Dwarf Goat

 

Explanation of results:
• Goats with N/N genotype will not have this inherited form of neuromuscular disorder and cannot transmit this allele to their offspring.

• Goats with N/CM genotype will not be affected by this inherited form of neuromuscular disorder but are carriers . They may transmit this allele to 50% of their offspring. Matings between two carriers are predicted to produce 25% of affected goats. 

• Goats with CM/CM genotype are expected to develop this form of neuromuscular disorder and will transmit this allele to all of their offspring.

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**We are currently in the process of testing our whole herd through UC Davis.

Results can be found on each goat's page**

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All kids out of carrier does or sired by carrier bucks will be tested before leaving our farm

 

Any buck kids found to be carriers will not be sold. Does that are found to be carriers will be sold with full disclosure to buyers

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We will not breed carriers to each other