Your horse did not inherit the MH mutation and is considered normal. They cannot pass on the mutation to offspring themselves.

• Muscle cramping.
• Twitching.
• Profuse sweating.
• High temperature.
• Rapid breathing.
• High heartrate.
• Death.

A Veterinarian should be made aware of your horse's MH status prior to anesthesia, as MH horses have a poor prognosis once an episode begins. Your veterinarian may administer Dantrolene prior to anesthesia.

Management of MH is possible through responsible breeding. When choosing a stallion or mare to breed, their genetic health panel should be considered in order to minimize the possibility of producing a foal with MH.

If an episode has begun, your veterinarian may administer chilled intravenous fluids and use mechanical ventilation in an attempt to cool down the horse. Unfortunately, the majority of episodes are fatal.

When breeding any horse, probability of offspring inheriting genetic mutations should always be considered. Responsible breeding is key with MH due to extremely poor prognosis for horses who experience an episode.

Expected breeding outcomes are shown below. A normal MH gene is indicated by "N". A mutated MH gene is indicated by "MH".

100% chance of a foal who does not carry a copy of MH and is considered normal. They cannot pass on the mutation to offspring themselves.

50% chance of a foal who does not carry a copy and is considered normal. They cannot pass on the mutation to offspring themselves.

50% chance a foal who is a carrier of MH and is at a high risk to experience an episode under anesthesia. This horse can pass on MH to its offspring.

100% chance a foal who is a carrier of MH and is at a high risk to experience an episode under anesthesia. This horse can pass on MH to its offspring.

• VGL-MH
• UCD-MH
• MERCK-MH

Your horse is considered a carrier and can be affected by MH if/when triggered. Your veterinarian should be aware of your horse’s MH status so they can alter their anesthesia protocols. This horse can pass on MH to their offspring.

• Muscle cramping.
• Twitching.
• Profuse sweating.
• High temperature.
• Rapid breathing.
• High heartrate.
• Death.

A Veterinarian should be made aware of your horse's MH status prior to anesthesia, as MH horses have a poor prognosis once an episode begins. Your veterinarian may administer Dantrolene prior to anesthesia.

Management of MH is possible through responsible breeding. When choosing a stallion or mare to breed, their genetic health panel should be considered in order to minimize the possibility of producing a foal with MH.

If an episode has begun, your veterinarian may administer chilled intravenous fluids and use mechanical ventilation in an attempt to cool down the horse. Unfortunately, the majority of episodes are fatal.

When breeding any horse, probability of offspring inheriting genetic mutations should always be considered. Responsible breeding is key with MH due to extremely poor prognosis for horses who experience an episode.

Expected breeding outcomes are shown below. A normal MH gene is indicated by "N". A mutated MH gene is indicated by "MH".

50% chance of a foal who does not carry a copy and is considered normal. They cannot pass on the mutation to offspring themselves.

50% chance of a foal who is a carrier of MH and is at a high risk to experience an episode under anesthesia. This horse can pass on MH to its offspring.

25% chance of a foal who does not carry a copy and is considered normal. They cannot pass on the mutation to offspring themselves.

50% chance a foal who is a carrier of MH and is at a high risk to experience an episode under anesthesia. This horse can pass on MH to its offspring.

25% chance a foal inherits two copies and is at high risk to experience an episode under anesthesia. This horse will pass on MH to its offspring.

50% chance of a foal who is a carrier of MH and is at high risk to experience an episode under anesthesia. This horse can pass the MH mutation to offspring.

50% chance a foal inherits two copies and is at high risk to experience an episode under anesthesia. This horse will pass on MH to its offspring.

• VGL-MH
• UCD-MH
• MERCK-MH

Your horse inherited two copies of MH making them homozygous. They can be affected by MH if/when triggered. Your veterinarian should be aware of your horse's MH status so they can alter their anesthesia protocols. This horse will pass on MH to offspring.

• Muscle cramping.
• Twitching.
• Profuse sweating.
• High temperature.
• Rapid breathing.
• High heartrate.
• Death.

A Veterinarian should be made aware of your horse's MH status prior to anesthesia, as MH horses have a poor prognosis once an episode begins. Your veterinarian may administer Dantrolene prior to anesthesia.

Management of MH is possible through responsible breeding. When choosing a stallion or mare to breed, their genetic health panel should be considered in order to minimize the possibility of producing a foal with MH.

If an episode has begun, your veterinarian may administer chilled intravenous fluids and use mechanical ventilation in an attempt to cool down the horse. Unfortunately, the majority of episodes are fatal.

When breeding any horse, probability of offspring inheriting genetic mutations should always be considered. Responsible breeding is key with MH due to extremely poor prognosis for horses who experience an episode.

Expected breeding outcomes are shown below. A normal MH gene is indicated by "N". A mutated MH gene is indicated by "MH".

100% chance of a foal who is a carrier of MH and is at a high risk to experience an episode under anesthesia. This horse can pass on MH to its offspring.

50% chance of a foal who is a carrier of MH and is at high risk to experience an episode under anesthesia. This horse can pass the MH mutation to offspring.

50% chance a foal inherits two copies and is at high risk to experience an episode under anesthesia. This horse will pass on MH to its offspring.

100% chance a foal inherits two copies and is at high risk to experience an episode under anesthesia. This horse will pass on MH to its offspring.

• VGL-MH
• UCD-MH
• MERCK-MH