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Metabolic Consequences of Increasing Milk Yield – Revisiting Lorna

Published online by Cambridge University Press:  27 February 2018

C. K. Reynolds
C. K. Reynolds*
Affiliation:
Department of Animal Sciences, The Ohio State University, OARDC, Wooster, Ohio, 44691, USA
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Extract

Nearly 50 years ago, a cow named Lorna achieved notoriety by producing nearly 50 kg of milk daily during measurements of her energy metabolism in a calorimeter at the United States Department of Agriculture (USDA) Energy Metabolism Laboratory at Beltsville, Maryland (Flatt, Moore, Hooven and Plowman, 1965; Flatt, Moe, Munson and Cooper, 1969). In the intervening period genetic selection in dairy cattle has produced huge increases in average milk yield, as well as changes in overall conformation, udder characteristics, and body size and structure (Hansen, 2000).

Type
Research Article
Information
BSAP Occasional Publication , Volume 29: Dairying: Using Science to Meet Consumers’ Needs , 2004 , pp. 73 - 84
Copyright
Copyright © Cambridge University Press 2004

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