The role of energy balance in productivity, health, and fertility of first lactation Holsteins, Jerseys, and their reciprocal crosses
The Virginia Tech crossbreeding program began in the fall of 2002 by mating Holstein and Jersey foundation females to Holstein and Jersey bulls to create HH, HJ, JH, and JJ breed groups (sire breed listed first). Collection of daily dry matter intakes (DMI) began in the fall of 2005 and continued t...
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Virginia Tech
2014
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Online Access: | http://hdl.handle.net/10919/29549 http://scholar.lib.vt.edu/theses/available/etd-11122008-102354/ |