British Veterinary Journal · 1977 · 22 citations · 0 references
AgricultureAnimal SciencesDairy ScienceDairy Herd ManagementFertilityLivestock ProductionAnimal HusbandryBreeding ManagementFarm RecordsLivestock Production SystemsReproductive ManagementBreeding RecordsHerd Reproductive ManagementLivestock RecordsReproductive Performance RecordingReproductive Record Keeping