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DETERMINATION OF OPTIMAL DCAD CONCENTRATION AND RELATIVE EFFECTIVENESS OF POTASSIUM VERSUS SODIUM CATION SUPPLEMENTATION FOR MAXIMAL FEED EFFICIENCY IN LACTATING DAIRY COWS
The objective was to determine the optimal dietary cation-anion difference (DCAD) required to maximize 3.5% fat-corrected milk (FCM) and feed efficiency (FE; FCM per dry matter intake (DMI)) in lactating dairy cows. When ...
ESTIMATION OF DRY MATTER INTAKE AND IDENTIFICATION OF DIETARY AND PRODUCTION PARAMETERS THAT INFLUENCE FEED EFFICIENCY OF INDIVIDUAL DAIRY COWS
The objectives of this dissertation were to: 1) develop and validate equations used to estimate individual cow dry matter intake (DMI; kg/d) based on a nitrogen (N) balance approach, 2) determine the discriminatory power ...