Soy protein is used as a meat extender.

The use of the vowel fatHa (or in English a) simply refers to the participant as being the one receiving the action as opposed to the use of kasra (or i in English) which denotes the participant doing the action rather than receiving it.

He farmed his marginal land with difficulty.

A hog, basher, hammermill or prebreaker is used to grind the bones, heads, feet, heavy tissues, and whole carcasses into pieces no larger than 2 inches.