I occasionly work for a man who runs a cattle farm and he has a 3 acre pond on his property which is at max 10 feet deep.He has about 300 head of cattle which wade in the pond and sometimes they go to the bathroom in it.Will this be in any way harmful to the pond or cause algae blooms?He just started allowing the cattle to wade in it and last summer it seemed like there was a considerable heavy algae bloom in it.Any info on this would be helpful.

Wishing ya`ll hard strikes and heavy stringers