changes in mammary gland histology , dry weights , nucleic acids and in vitro rates of substrate oxidation in incorporation into lipid were measured in mammary biopsies of three gilts each on d 30 , 45 , 60 , 75 , 90 , 105 and 112 of pregnancy , and d 1 and 4 of lactation .
C0929301
mammary gland
C0006141
mammary