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.
An estimated cost of raising heifers includes a host of inputs. For 24 months of feeding, around six tons of dry matter is needed per heifer for a total feed cost of $1,224.The livestock costs add another $273.52.or a 100- cow herd raising 40 replacements each year, this savings would equal $3,760 per year. Reducing the cull rate by 10% would further reduce heifers needed by four thus reducing heifer raising costs by another $7,964 ($2,166 -$175 calf value = $1,991 x 4).