The RSPCA has released video showing fire crews hosing down angry bulls during efforts to free a heifer stuck fast between two tree trunks.
Firefighters were forced to direct water jets at four large Limousin bulls to ensure rescuers' safety during the unusual call-out in Alfreton, Derbyshire.
Police contacted the RSPCA on June 20 after receiving reports that the "weak and dehydrated" cow had its head trapped on a steep incline.
RSPCA animal welfare officer Andy Snowdon said: "On top of the steep conditions, there were also four large, angry bulls standing guard over the cow, so I am very grateful to the fire service for attending.
"Their jets of water helped keep me safe while we winched the trees apart and managed to free the cow.
"I love all animals but I have to admit having four large randy bulls circling around me was quite an 'interesting' experience - and one I don't want to repeat any time soon."
Figures show that the RSPCA rescued 127,321 wild, exotic, farm and domestic animals from dangerous and distressing situations during 2014.