Every railroad corporation or company, operating any railroad or branch thereof within the limits of this state, which negligently injures or kills any animal of the equine, bovine, ovine or porcine species, or the goat kind, by running any engine or engines, car or cars, over or against any such animal shall be liable to the owner of such animal for the damages sustained by such owner by reason thereof, unless it be shown on the trial of any action instituted for the recovery of such damages as provided in NRS 705.160 that the owner of such animal or animals immediately contributed to such killing or injury; provided:
1. That the mere straying of such animal or animals upon or along the railroad track or tracks concerned shall not be held upon such trial to be any evidence of contributory negligence on the part of the owner of such animal or animals, nor shall the grazing of the same unattended by a herder be so considered; and
2. That the killing or injury in such actions shall be prima facie evidence of negligence on the part of such railroad corporation or company.
[1:88:1923; NCL § 6345]