milk production per unit mammary wet weight , dry fat-free tissue , deoxyribonucleic acid , and ribonucleic acid were related to day of lactation by an equation of the form y = axbecx , where y was milk production per unit mammary gland growth , x was day of lactation , e was the base of natural logarithms , and a , b , and c were constants .
C0006141
mammary
C0026131
milk