1. The effect of semen extenders and sperm number on mare fertility;Pickett;J. Reprod Fertil Suppl,1975
2. Effects of different artificial insemination techniques and sperm doses on fertility of normal mares and mares with abnormal reproductive history;Sieme;Theriogenology,2004
3. Insemination dose: how low can we go?;Brinsko;Theriogenology,2006
4. Case report: the effect of sperm number, concentration, and volume of insemination dose of chilled, stored, and transported semen on pregnancy rate in Standardbred mares;Newcombe;J Equine Vet Sci,2005
5. Council directive 92/65/EEC of 13 July 1992 laying down animal health requirements governing trade in and imports into the Community of animals, semen, ova and embryos not subject to animal health requirements laid down in specific Community rules referred to in Annex A (I) to Directive 90/425/EEC: Last amended by Council Directive 2008/73/EC of 15 July 2008.