Biological position of viruses: Viruses lack a cytoplasmic membrane and they do not have the basic component of a cell. They can only replicate inside the host cell. Outside the host cell, they are non-living.
The yearling program was, however, more variable with a maximum profit of $356 per head compared with $206 for calf fed, and a maximum loss of $171 per head compared with $152 for the calf fed program.
The cow will eat half a ton per month, and this year the hay is going to cost at least $90 a ton. That is $225 per year for hay. Grass is cheaper. It will only cost $20 a month for the other 7 months of the year â thatâs $140 per year for grass.he Economics of Ranching.doc 2 11/29/2007 A reasonably good bull will cost us $3500. The annual cost of his purchase is about $734, but we will use him on 20 cows, so it will cost us $37 per cow to own the bull â and another $23 per cow in feed cost for that bull. So $60 to get the cow bred.