Now that i remember, let me ask. Why the ?? monster? Cows were an EXCELLENT source for meat and milk (besides the money cheat). And on higher difficulties, in which meditation DOESN'T make your health full again, they were MANDATORY for survival. Because obviously, if you tried to farm other animals for food, especially ones able to attack you (damn those nasty wargs), you could end up dying gruesomely, instead of accumulating your happy food and drinks storage effortlessly...
About the money, though, there is a better trick (but for slow systems like mine, it is useless). Ride Roche, draw steel, go for hunting deer, rabbits and all manners of wildlife. Like cows, they drop leather, too. Sell to White Orchard Innkeeper as first priority (gives best price for food/drinks/pelts in the entire area, compared to other vendor/merchant types), then to others who would buy them (leaving the generic merchant vendor type for last preference, generic merchants try to fleece you in every deal they do).