[If] one steals wood and makes it into utensils; [or] wool, and makes it into garments —- he pays as of the time of the robbery.  [If] one steals a pregnant cow, and it calves; [or] a ewe bearing wool, and he shears it —- he pays the value of the cow ready to calve [or] the value of a ewe ready to be shorn.  [If] one steals a cow, and it becomes impregnated while with him, and it calves; [or] a ewe, and it becomes laden with wool while with him, and he shears it —- he pays as of the time of the robbery.  This is the general rule: All robbers pay as of the time of the robbery.