Sacrifice - rules, guidelines and modern issues

 What if the tongue of the animal has been cut off?

In a goat, cutting off the tongue is not considered as a defect.  However, in a cow it is considered to be so.  The jurists have clarified that this is because the goat ruminates using its teeth and a cow using its tongue.  Thus, if the tongue has been cut off, then sacrifice of such an animal is correct.  However, if the same has been done to a cow, then it will be seen how much of the tongue has been cut off.  If more than 1/3^rd of the tongue has been cut off, then sacrifice of such an animal is not correct.  If it is less than that, then it is permissible.

As mentioned in Radd Ul Muhtaar:

 (Radd Ul Muhtaar, Vol. 5, Pg. No. 229)