Sources of variability in lactational performance.
Oldham
J D
JD
Edinburgh School of Agriculture.
Friggens
N C
NC
D000818:Animals; D005075:Biological Evolution; D002417:Cattle; D004777:Environment; D005260:Female; D007774:Lactation / Q000378:metabolism*; D008892:Milk / Q000378:metabolism*; D011247:Pregnancy; D013045:Species Specificity; D013997:Time Factors