Haugan, T Effects of sperm concentration at semen collection and storage period of frozen semen on dairy cow conception. [electronic resource] - Animal reproduction science Jan 2007 - 1-11 p. digital Publication Type: Journal Article ISSN: 0378-4320 Standard No.: 10.1016/j.anireprosci.2005.12.010 doi Subjects--Topical Terms: AnimalsCattleCryopreservation--methodsCryoprotective Agents--pharmacologyFemaleInsemination, Artificial--veterinaryMaleNorwayPregnancyPregnancy RateSemen--physiologySemen Preservation--methodsSperm Count--veterinarySpermatozoa--drug effectsTime Factors