Journal of Animal Science · 1970 · 146 citations · 11 references
AgricultureAnimal SciencesVeterinary PhysiologyDairy Herd ManagementFertilityLivestock ProductionBeef Cattle ProductionBreedingReproductive PerformanceRuminant ReproductionConception TimingCow Reproductive Physiology
Three areas present our best opportunity to improve reproductive performance in beef cattle. These are: (1) Increase the proportion of cows bred the first 21 days of the breeding season; (2) Increase the conception rate at first service; and (3) Decrease losses at or near birth. Additional information which can only be obtained from experiments designed solely to obtain physiological data pertaining to beef cattle reproduction is needed.
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Effect of Energy Level on Reproductive Phenomena of Mature Hereford Cows
J. Ν. Wiltbank, W. W. Rowden, J. E. Ingalls et al. · Journal of Animal Science · 1962 · 320 citations