Baruselli, P. S., R. G. Mucciolo, J. A. Visintin, W. G. Viana, R. P. Arruda, E. H. Madureira, C. A. Oliveira and J. R. Molero Filho. 1997. Ovarian follicular dynamics during the estrous cycle in Buffalo (Bubalus bubalis). Theriogenology. 47:1531-1547.
Cockrill, W. R. 1980. The ascendant water buffalo-key domestic animal. World Animal Review. 33: 2-13.
Evans, A. C. O., G. P. Adams and N. C. Rawlings. 1994. Endocrine and ovarian follicular changes leading upto the first ovulation in prepubertal heifers. J. Reprod. Fertil. 100:187-194.
Iyer, C. P. N. 1978. FAO/SIDA –Fellowship seminar on Animal Reproduction, Tirupati, India.
Lohan, I. S., M. S. Saini, M. L. Kaker, R. K. Malik, B. Singh and S. S. Grewal. 2001. Follicular changes in postpartum buffaloes (Bubalus bubalis) induced to cyclicity. Indian J. Anim. Sci. 71: 918-921.
Lucy, M. C., J. D. Savio, R. L. Badinga, R. L. De La Sota, W. W. Thatcher. 1992. Factors that affect ovarian follicular dynamics in catle. J. Anim. Sci. 70:3615-3626.
Malik, V. S., M. L. Kakkar and I. S. Lohan. 2002. Effect of norgestomet implant on the reproduction of post-partum anestrous lactating buffaloes. Punjab Veterinary Journal. 2:7-9.
Murphy, M. G., M. P. Boland and J. F. Roche. 1990. Pattern of follicular growth and resumption of ovarian activity in postpartum beef suckler cows. J. Reprod. Fertil. 90:523-533.
Peter, A. T. and T. K. Bosu, 1988. Influence of intrauterine infection and follicular development on the response to GnRH administration in postpartum dairy cows. Theriogenology. 29:1163-1175.
Pierson, R. A. and O. J. Ginther. 1988. Ultrasonic imaging of the ovaries and uterus in cattle. Theriogenology. 29:21-37.
Ribadu, A. Y., W. R. Ward and H. Dobson. 1994. Comparative evaluation of ovarian structures in cattle by palpation per rectum, ultrasonography and plasma progesterone concentration. Veterinary Record. 135:452-457.
Savio, J. D., M. P. Boland, N. Hynes and J. F. Roche. 1990. Resumption of follicular activity in the early postpartum period of dairy cows. J. Reprod. Fertil. 88: 569-579.
Sirois, J. and J. E. Fortune. 1988. Ovarian follicular dynamics during the estrous cycle in heifers monitored by real-time ultrasonography Biol. Reprod. 39:308-317.
Wishy, A. B. and I. M. Ghoneim. 1995. Ovarian function in buffalo cows with special reference to the accuracy of rectal palpation. Reprod. Dom. Anim. 30:39-41.