If two or more animals are sold together, whether for a lump sum or for a separate price for each of them, the redhibitory defect of one shall only give rise to its redhibition, and not that of the others; unless it should appear that the vendee would not have purchased the sound animal or animals without the defective one.
The latter case shall be presumed when a team, yoke pair, or set is bought, even if a separate price has been fixed for each one of the animals composing the same. (1491)