1. Kinsella, J.E., J. Dairy Sci. 53:1957 (1970).
2. Bickerstaffe, R., in “Lactation,” Edited by I. Falconer, Butterworth's, London, 1971, p. 317.
3. Annison, E.F., J.L. Linzell, S. Fazakerly and B.W. Nichols, Biochem. J. 102:637 (1967).
4. Lauryssens, M., R. Verbecke and G. Peeters, J. Lipid Res. 2:383 (1961).
5. Bickerstaffe, R., and E.F. Annison, Comp. Biochem. Physiol. 35:653 (1970).