A cow expert is someone who knows anything and everything associated with Cows and Cattle. By anything and everything, I mean everything from health to reproduction to how to properly raise them and understand their psychology and behaviour. All of these things are used to allow such an expert to answer various questions put out by those who know little or nothing about cows and cattle.
A cow shed. A cow shed is called a BYRE
A dwarf cow is called a mini miracle.
A very thin, emaciated cow that may be close to death.
A bull or a Steer
A bull.
There's not really an answer... You just call it a cow...
The Boss Cow, Lead Cow, or Top Cow.
Expert, Knowledgeable, etc..
Momma cow.
Just a cow.
every cow moos
I believe you would call it a "heifer".
They call him/her a calf.
A cow shed. A cow shed is called a BYRE
A grazing cow or grazer.
An open or barren cow.
pullicologist