We lived on venison for more than 10 years...oh more like 20..I cut all of our own meat and saved a lot of beef suet from the beef critters when we did the killing(we always split the steer with our family). Used approx 25-30% when we ground the meat. We occasionally used pork fat but it has a different texture than beef. And yes as has been stated remove all of the natural fat from venison. We quit using rendered lard in all cooking in the mid 1970s... our hogs were real hogs when we killed 'em. 380-420 lbs...not like the shoats they sell in the stores these days,,,beef critters were 1300 or more.