Gov. Dannel P. Malloy has proposed legislation clarifying that domesticated horses cannot be considered vicious, responding to a legal claim over a horse at a Milford farm that threatens a far-reaching and damaging impact on the state’s lucrative horse industry.

The state Appellate Court overturned a lower court ruling two years ago, saying the owner of a farm where a horse named Scuppy bit a child demonstrated that the horse belongs to “a species naturally inclined to do mischief or be vicious.” The case is pending before the Connecticut Supreme Court, which heard an appeal last September.