When a bull is castrated he now becomes a steer, the only time that a female is called anything different is when she is born as a twin to a male calf, this is when she is called a "free martin". Farmers do not "de-sex" females.
A male desexed Guinea Pig is called "Neutered", and a female desexed Guinea Pig is known as "Spayed".
Wether
a neutered dog
it is called a buck A desexed male goat is called a wether
The name for a castrated (desexed) male pig is a barrow.
A group of cattle is called a herd.
A number of cattle is called a herd of cattle. A number of pigs is called also called a herd.
it may be...
It can be called a ranch or a cattle farm.
A Herd of Cattle is the collective noun you are looking for.
Cattle are not called steers, rather steers are called cattle, when loosely referring to more than one steer or indiscriminate bovine. Steers are cattle because cattle are a collection of bovines that include steers, as well as cows, heifers, bulls and calves. However, cattle can be called steers if these cattle are specifically castrated male bovines, but cattle should not be called steers if they are not specifically and only castrated male bovines.
The cars were called "Cattle Cars". They were called cattle cars because that's what cattle were put into when they had to travel.