It is hereby declared to be a nuisance and it shall be unlawful to fail to cause any dead animal or part thereof, within six hours after the death of same, to be buried so that there is at least three feet of soil above said carcass, or to be disposed of in some other sanitary manner, provided, however, that this section shall not apply to animals slaughtered for and fit for human food.
(`67 Code, § 4-1-16)