Short answer. No. Article 1574 of the Civil Code removes the warranty against hidden defects for animals sold at fairs or at public auctions, and for livestock sold as condemned. In those three situations you take the animal as you find it. Animals bought in an ordinary private sale are treated very differently.
What the law says
There is no warranty against hidden defects of animals sold at fairs or at public auctions, or of live stock sold as condemned.
Civil Code, Article 1574 — No Warranty at Fairs/Auctions or for Condemned Livestock. Read the full provision →
What the article withdraws, and from whom
The provision is a single sentence: There is no warranty against hidden defects of animals sold at fairs or at public auctions, or of live stock sold as condemned. It withdraws one specific protection — the implied warranty against hidden defects that a buyer would otherwise enjoy — in three defined settings. It binds the buyer, not the seller: the seller is the one relieved of exposure. So a horse bought at a provincial fair that turns out to have a chronic lameness nobody could see on the day is, as a rule, the buyer's misfortune, and the price cannot be recovered on that ground alone.
Why the law singles out these sales
Fairs and public auctions are quick, competitive, public settings. The animals are on display, buyers are expected to look at them, prices reflect the risk being taken, and the seller often has no continuing relationship with the buyer at all. Livestock sold as condemned is sold precisely on the footing that it is defective; the low price is the whole point of the transaction. Extending a hidden-defect warranty to these sales would let a buyer take the discount and then send the risk back to the seller weeks later. The law therefore prices the uncertainty into the sale itself rather than into litigation afterwards.
What the rule does not cover
The article addresses hidden defects only. It does not licence a seller to lie. If the seller made a positive false statement about the animal, concealed something he knew of, or sold an animal that is not the animal described, the buyer's complaint is not about a hidden defect at all but about fraud or about a failure to deliver what was agreed, and those remain available. Nor does the article touch title: a stolen animal does not become yours because it was knocked down at auction. Article 1575 separately renders void the sale of animals suffering from a contagious disease, and the sale of animals unfit for the use or service stated in the contract.
Practical points before and after you bid
Because the warranty is gone, everything depends on what you do at the ring. Inspect before bidding, bring someone who knows the species, and ask for whatever health or vaccination records exist. If the auction house or seller is willing to give an express written assurance about a particular condition, that assurance stands on its own footing and is worth having in writing. Keep the catalogue entry, the receipt and any statement made to you. Where you believe you were positively misled rather than merely unlucky, act quickly: actions on defects in animal sales are governed by a very short prescriptive period under Article 1577, and delay closes the door on its own.