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.
In calculating the winter feed costs, Hoppe figured a 1400-pound cow will either eat or waste 40 pounds of feed daily. Using a hay price of $65 per ton and figuring 180 days on feed with the winter ration that translates into a feed charge of $1.40 per day or $252 for six months.ardage for 4.7 years @ $90/year = $423.00. Total expenses = $2622.60. Net income over life of cow = $2582.03. If a producer would like to realize a profit of $200 per head each year that would be an additional cost of $940 over the life of the cow, meaning that the value to pay for a bred heifer would be $1642.03.