| A study of oestrous behaviour and oestrus detection methods in a large commercial dairy herd. I. The relative efficiency of methods of oestrus detection NB Williamson, RS Morris, DC Blood, CM Cannon The Veterinary Record 91 (3), 50-58, 1972 | 187 | 1972 |
| Patterns of follicular development during periods of anovulation in pasture-fed dairy cows after calving S McDougall, CR Burke, KL MacMillan, NB Williamson Research in veterinary science 58 (3), 212-216, 1995 | 127 | 1995 |
| Effect of selenium and iodine supplementation on growth rate and on thyroid and somatotropic function in dairy calves at pasture JJ Wichtel, AL Craigie, DA Freeman, H Varela-Alvarez, NB Williamson Journal of dairy science 79 (10), 1865-1872, 1996 | 119 | 1996 |
| Calculating selected reproductive indices: recommendations of the American Association of Bovine Practitioners J Fetrow, D McClary, R Harman, K Butcher, L Weaver, E Studer, J Ehrlich, ... Journal of Dairy Science 73 (1), 78-90, 1990 | 105 | 1990 |
| A study of oestrous behaviour and oestrus detection methods in a large commercial dairy herd. II. Oestrous signs and behaviour patterns NB Williamson, RS Morris, DC Blood, CM Cannon, PJ Wright The Veterinary Record 91 (3), 58-62, 1972 | 97 | 1972 |
| A health program for commercial dairy herds: 1. Objectives and methods DC Blood, RS Morris, NB Williamson, CM Cannon, RM Cannon Australian Veterinary Journal 54 (5), 207-215, 1978 | 92 | 1978 |
| Efficacy of a Neospora caninum killed tachyzoite vaccine in preventing abortion and vertical transmission in dairy cattle JF Weston, C Heuer, NB Williamson Preventive veterinary medicine 103 (2-3), 136-144, 2012 | 91 | 2012 |
| Effect of intraruminal monensin capsules on reproductive performance and milk production of dairy cows fed pasture DP Hayes, DU Pfeiffer, NB Williamson Journal of Dairy Science 79 (6), 1000-1008, 1996 | 91 | 1996 |
| A longitudinal study of Neospora caninum infection on a dairy farm in New Zealand DU Pfeiffer, NB Williamson, MP Reichel, JJ Wichtel, WR Teague Preventive Veterinary Medicine 54 (1), 11-24, 2002 | 83 | 2002 |
| Genomic typing of Streptococcus uberis isolates from cases of mastitis, in New Zealand dairy cows, using pulsed-field gel electrophoresis VL Douglas, SG Fenwick, DU Pfeiffer, NB Williamson, CW Holmes Veterinary microbiology 75 (1), 27-41, 2000 | 83 | 2000 |
| The incidence and aetiology of clinical bovine mastitis on 14 farms in Northland, New Zealand KR Petrovski, C Heuer, TJ Parkinson, NB Williamson New Zealand Veterinary Journal 57 (2), 109-115, 2009 | 82 | 2009 |
| The use of PCR to detect Neospora caninum DNA in the blood of naturally infected cows CM Okeoma, NB Williamson, WE Pomroy, KM Stowell, L Gillespie Veterinary parasitology 122 (4), 307-315, 2004 | 80 | 2004 |
| GnRH induces ovulation of a dominant follicle in primiparous dairy cows undergoing anovulatory follicle turnover S McDougall, NB Williamson, KL Macmillan Animal Reproduction Science 39 (3), 205-214, 1995 | 71 | 1995 |
| The effect of pretreatment with progesterone on the oestrous response to oestradiol-17β benzoate in the postpartum dairy cow S McDougall Proceedings of the New Zealand Society of Animal Production 52, 157-160, 1992 | 66 | 1992 |
| Some risk factors associated with clinical lameness in dairy herds in Minnesota and Wisconsin. SJ Wells, AM Trent, WE Marsh, NB Williamson, RA Robinson The Veterinary Record 136 (21), 537-540, 1995 | 65 | 1995 |
| The role of Neospora caninum in three cases of unexplained ewe abortions in the southern North Island of New Zealand L Howe, DM West, MG Collett, G Tattersfield, RS Pattison, WE Pomroy, ... Small Ruminant Research 75 (2-3), 115-122, 2008 | 63 | 2008 |
| The effect of intra-ruminal selenium pellets on growth rate, lactation and reproductive efficiency in dairy cattle JJ Wichtel, AL Craigie, H Varela-Alvarez, NB Williamson New Zealand Veterinary Journal 42 (6), 205-210, 1994 | 63 | 1994 |
| Improving parity-two litter size in swine WEM Morrow, AD Leman, NB Williamson, R Moser, C Pijoan Journal of Animal Science 67 (7), 1707-1713, 1989 | 58 | 1989 |
| The effect of estradiol benzoate administration on estrous response and synchronized pregnancy rate in dairy heifers after treatment with exogenous progesterone DW Hanlon, NB Williamson, JJ Wichtel, IJ Steffert, AL Craigie, DU Pfeiffer Theriogenology 45 (4), 775-785, 1996 | 55 | 1996 |
| Neospora caninum: quantification of DNA in the blood of naturally infected aborted and pregnant cows using real-time PCR CM Okeoma, KM Stowell, NB Williamson, WE Pomroy Experimental parasitology 110 (1), 48-55, 2005 | 54 | 2005 |
