ML, others have said they believe a sick cow may go to the pond and drown, that's the reason they give for fencing the cows out.
I tend to lean in your rational and fence out only my main fish eating pond. It makes for more work ie mowing the bank and levvy. Previous owner let his cows keep the levvy down and they did a fine job. I am thinking I'll temp fence the levy only and put some goats on it. It's too steep to mow and I am tired of weed eating it, takes a full day and three tanks of weedeater fuel. I've rented the self propelled Dr type mowers and they work, but going up and and down a steep pond bank is some serious work.


Hard work beats talent when talent doesn't work hard