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Interrelationships Of Heifer Milk Production And Other Biological Traits With Production Efficiency To Weaning, B.A. Freking, D.M. Marshall
Interrelationships Of Heifer Milk Production And Other Biological Traits With Production Efficiency To Weaning, B.A. Freking, D.M. Marshall
South Dakota Beef Report, 1990
Interrelationships among milk production, cow-calf feed efficiency and other biological traits were evaluated on first-calf females and their calves. Production efficiency was defined as cumulative feed metabolizable energy consumed by the dam-calf pair during the year divided by calf weaning weight. Results indicated that increased levels of milk production were associated with improved production efficiency to weaning as long as calves have the genetic potential to convert the extra milk into body weight gains. However, the incremental improvement in efficiency per unit of increased milk was less for each additional unit of milk.