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Major Metabolic Determinants of Milk Volume, Mammary Efficiency, and Spontaneous Ketosis in Dairy Cows

Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Kennett Square 19348

ABSTRACT

Mammary uptakes of glucose and long-chain fatty acids are proposed to be the major metabolic determinants of milk volume production and mammary efficiency, respectively. Moreover, the ratio of glucogenic to lipogenic nutrients in the diet is proposed to be the major determinant of spontaneous ketosis. Experimental evidence and clinical observations are adduced in support of these three interrelated propositions. Their heuristic value would be demonstrable in tests of formulations of high-fat rations and administrations of articles, such as growth hormone preparations, intended to promote maximal production and efficiency with least risk of ketosis.

This article has been cited by other articles:

				F.-Q. Zhao and A. F. Keating Expression and Regulation of Glucose Transporters in the Bovine Mammary Gland J Dairy Sci, June 1, 2007; 90(13_suppl): E76 - E86. [Abstract] [Full Text] [PDF]