They sacrificed male oxen that were inspected to be clean and free of disease and ate the remainder after it was ritually burned. Ill or diseased male oxen not worthy of sacrifice and had died were buried ritually and then dug up after the bones were clean and placed in a temple.
This practice involved slaughtering male oxen that had been vetted to be disease-free and consumed the leftovers after it was ritually incinerated. Oxen that were deemed unfit for sacrifice and had died were buried ritually, only to be exhumed later with their bones purified and placed in a sacred edifice.