They are horns.
You may thinking of the longhorn, or even the shorthorn.
The bony part of the head is the skull.
comb
cone
Skull
Skull
A "head" of cattle is just another way of saying herd of cattle. Instead of saying I have 100 herd of cattle, you would say I have 100 head of cattle (this way you are specifying the exact number of cows you have in your herd)
A head of a arrow is the pointed end.
What do you mean "a cattle head?" Are you trying to say "head of cattle"? If you are, one head of cattle is just a way of counting the number of "heads" or cattle in a herd. One head = 1 cow or cattlebeast or animal or whatever you want to call them. However, if you're asking what is a cattle head, then here's the answer as far as I can answer it: a cattle head could be one to two things--a head of a prized cow, steer or bull that is mounted on the wall after its counterpart passed on, particularly if this head is of a Texas Longhorn that had an amazingly large rack. The second thing could be what I mentioned above.
Twelve.
tortoise
So with 80 head of cattle, we have a 1:3 ratio of dairy to beef, respectively. That translates to: for every head of dairy cattle there are three beef cattle. Since, mathematically, 80 total head of cattle with a 1:3 ratio don't really work out to nice, round numbers, we will have to work with fractions and such. 1:3 ratio can be converted to a fraction: 1/3. 1/3=0.3333333... So, with 80 head of cattle, we find the number of dairy cattle: 80 x (1/3) = 26.66666666.... Which we could round off to 26 dairy cattle. Since we have 80 total head, we subtract to find how many beef cattle are in the herd: 80 - 26 = 54. So the answer is thus: If there are 80 head of cattle, and the ratio of dairy to beef cattle is 1:3, then there are 26 dairy cattle and 54 beef cattle.