| Effect of subclinical uterine infection on cervical and uterine involution, estrous activity and fertility in postpartum buffaloes RH Usmani, N Ahmad, P Shafiq, MA Mirza Theriogenology 55 (2), 563-571, 2001 | 111 | 2001 |
| Evaluation of semen quality of Holstein Friesian and Jersey bulls maintained under subtropical environment. M Fiaz, RH Usmani, M Abdullah, T Ahmad | 105 | 2010 |
| Effects of limited suckling and varying prepartum nutrition on postpartum reproductive traits of milked buffaloes RH Usmani, RA Dailey, EK Inskeep Journal of dairy science 73 (6), 1564-1570, 1990 | 75 | 1990 |
| Livestock of Pakistan HU Hasnain, RH Usmani Livestock Foundation, Islamabad, Pakistan 154, 2006 | 67 | 2006 |
| Uterine involution and postpartum ovarian activity in Nili-Ravi buffaloes RH Usmani, M Ahmad, EK Inskeep, RA Dailey, PE Lewis, GS Lewis Theriogenology 24 (4), 435-448, 1985 | 55 | 1985 |
| Characteristics of rural subsistence small holder livestock production system in mountainous areas of NWFP, Pakistan RN Khan, RH Usmani Pakistan Veterinary Journal 25 (3), 115, 2005 | 36 | 2005 |
| Improvement of conception rate in crossbred cattle by using GnRH analogue therapy. IA Anjum, RH Usmani, MT Tunio, SH Abro Pakistan Veterinary Journal 29 (2), 2009 | 35 | 2009 |
| Study on factors leading to seasonality of reproduction in dairy buffaloes. I. Nutritional factors MS Qureshi, HA Samad, G Habib, RH Usmani, MM Siddiqui Asian-Australasian journal of animal sciences 12 (7), 1019-1024, 1999 | 35 | 1999 |
| Factors affecting length of gestation and birth weight of Nili-Ravi buffaloes RH Usmani, GS Lewis, NA Naz Animal Reproduction Science 14 (3), 195-203, 1987 | 28 | 1987 |
| Study on factors leading to seasonality of reproduction in dairy buffaloes II. Non-nutritional factors MS Qureshi, G Habib, HA Samad, LA Lodhi, RH Usmani Asian-Australasian journal of animal sciences 12 (7), 1025-1030, 1999 | 24 | 1999 |
| Effect of prepartum feeding on milk yield and calf growth rate in limited-suckled and nonsuckled buffaloes RH Usmani, EK Inskeep Journal of Dairy Science 72 (8), 2087-2094, 1989 | 24 | 1989 |
| Reproductive performance and milk production of Nili-Ravi buffaloes maintained under barani (rain fed) areas of Punjab. P Shafiq, RH Usmani | 17 | 1997 |
| A note on the effect of suckling stimulus on uterine involution, post-partum ovarian activity and fertility in Nili-Ravi buffaloes RH Usmani, N Ullah, SK Shah Animal Science 41 (1), 119-122, 1985 | 16 | 1985 |
| Seasonal effect on semen producing ability of Holstein Friesian and crossbred bulls under sub-tropical environments of Punjab. RH Usmani, SK Shah, AH Zafar | 14 | 1993 |
| Effect of postgravid uterine horn on the pattern of resumption of ovarian functions in postpartum Nili-Ravi buffaloes RH Usmani | 13 | 1992 |
| Peripartum profiles of certain haematological and biochemical parameters in normally calving buffaloes S Perveen, RH Usmani J. Anim. Hlth. Prod 12 (13), 55-60, 1993 | 11 | 1993 |
| Cervical and uterine involution in postpartum Nili-Ravi buffaloes. RH Usmani, GS Lewis | 9 | 1984 |
| Characteristics of first postpartum oestrus in Nili-Ravi buffaloes. RH Usmani, M Ahmad, EK Inskeep | 8 | 1984 |
| Effect of bovine somatotropic hormone on the productive performance of Nili-Ravi buffaloes MA Jabbar, I Ahmad, S Javid, MA Chaudhry, RH Usmani Italian Journal of Animal Science 6 (sup2), 1039-1042, 2007 | 7 | 2007 |
| Changes in behaviour of Nili-Ravi buffalo heifers during oestrus. N Ullah, RH Usmani | 7 | 1985 |
