| Veterinary reproductive ultrasonography W Kähn, D Volkmann Schlütersche, 2004 | 206 | 2004 |
| The effect of the addition of autologous prostatic fluid on the fertility of frozen-thawed dog semen after intravaginal insemination JO Nothling PQDT-Global, 1995 | 82 | 1995 |
| Influence of seminal plasma on fertility of fresh and frozen-thawed stallion epididymal spermatozoa A Heise, W Kähn, DH Volkmann, PN Thompson, D Gerber Animal Reproduction Science 118 (1), 48-53, 2010 | 73 | 2010 |
| A rapid enzyme-linked immunosorbent assay blood test for pregnancy in dairy and beef cattle JC Green, DH Volkmann, SE Poock, MF McGrath, M Ehrhardt, ... Journal of dairy science 92 (8), 3819-3824, 2009 | 69 | 2009 |
| Semen quality after thawing: correlation with fertility and fresh semen quality in dogs. JO Nöthling, C Gerstenberg, DH Volkmann Journal of Reproduction and fertility. Supplement 51, 109-116, 1997 | 66 | 1997 |
| The use of deslorelin implants for the synchronization of estrous in diestrous bitches DH Volkmann, MA Kutzler, R Wheeler, N Krekeler Theriogenology 66 (6-7), 1497-1501, 2006 | 61 | 2006 |
| GnRH-agonist induction of fertile estrus with either natural mating or artificial insemination, followed by birth of pups in gray wolves (Canis lupus) CS Asa, K Bauman, P Callahan, J Bauman, DH Volkmann, W Jöchle Theriogenology 66 (6-7), 1778-1782, 2006 | 54 | 2006 |
| Age-matched comparison reveals early electrocardiography and echocardiography changes in dystrophin-deficient dogs DM Fine, JH Shin, Y Yue, D Volkmann, SB Leach, BF Smith, M McIntosh, ... Neuromuscular Disorders 21 (7), 453-461, 2011 | 51 | 2011 |
| Success with intravaginal insemination of frozen-thawed dog semen: a retrospective study DH Nï¿ ½thling, JO*, Gerstenberg, Cornelia** & Volkmann Journal of the South African Veterinary Association 66 (2), 49-55, 1995 | 50 | 1995 |
| Fertility of stallion semen frozen in 0.5-ml straws. DH Volkmann, D Van Zyl Journal of Reproduction and fertility. Supplement 35, 143-148, 1987 | 50 | 1987 |
| Comparison between vestibular and subcutaneous insertion of deslorelin implants for oestrus induction in bitches M Kutzler, SV Lamb, D Volkmann Reproduction in Domestic Animals 44, 83-86, 2009 | 45 | 2009 |
| Characterization and localization of alkaline phosphatase in canine seminal plasma and gonadal tissues MA Kutzler, PF Solter, WE Hoffman, DH Volkmann Theriogenology 60 (2), 299-306, 2003 | 42 | 2003 |
| The effects of storage time and temperature and anticoagulant on laboratory measurements of canine blood progesterone concentrations DH Volkmann Theriogenology 66 (6-7), 1583-1586, 2006 | 39 | 2006 |
| Failure of hCG to support luteal function in bitches after estrus induction using deslorelin implants DH Volkmann, MA Kutzler, R Wheeler, N Krekeler, J Klewitz, SV Lamb Theriogenology 66 (6-7), 1502-1506, 2006 | 39 | 2006 |
| Deslorelin implant administration beneath the vulvar mucosa for the induction of synchronous estrus in bitches MA Kutzler, R Wheeler, S Lamb, DH Volkmann Proceedings of Third EVSSAR European Congress 96, 2002 | 39 | 2002 |
| Encephalitozoon infection in a still-born foal CG Van Rensburg, IBJ*, Volkmann, DH**, Soley, JT*** & Stewart Journal of the South African Veterinary Association 62 (3), 130-132, 1991 | 39 | 1991 |
| Calcium, parathyroid hormone, oxytocin and pH profiles in the whelping bitch FK Hollinshead, DW Hanlon, RO Gilbert, JP Verstegen, N Krekeler, ... Theriogenology 73 (9), 1276-1283, 2010 | 34 | 2010 |
| Could treatment of pregnant mares prevent abortions due to equine piroplasmosis?: research communication BD Lewis, BL Penzhorn, DH Volkmann Journal of the South African Veterinary Association 70 (2), 90-91, 1999 | 32 | 1999 |
| The first reported case of equine nocardioform placentitis in South Africa DH Volkmann, JH Williams, MM Henton, JM Donahue, NM Williams Journal of the South African Veterinary Association 72 (4), 235-238, 2001 | 30 | 2001 |
| Sexual and in-contact transmission of asinine strain of equine arteritis virus among donkeys JT Paweska, DH Volkmann, BJ Barnard, ED Chirnside Journal of clinical microbiology 33 (12), 3296-3299, 1995 | 23 | 1995 |
