Authors : D.O. Umesiobi , U. Kalu , U. Ogundu , M.U. Iloeje , D.C. Anyanwu and L.R. Mcdowell
Abstract: An experiment was conducted to determine the effects of false mountings and sexual restraint on libido and semen fertility of West African Dwarf rams. Eighteen rams were assigned to nine treatment combinations involving 0, 5 and 10 minutes of restraint and 0, 2 and 3 false mounts. Semen quantity and quality were evaluated. Results from this study indicate that it requires the shortest time of 28.0 ? 0.65 sec at ten minutes of restraint and three false mounts (10R - 3FM) to achieve the highest libido. Mounting and prompt ejaculation provided a definite, clearly recognizable end point, for establishing that a ram was sexually stimulated sufficiently. Changes of stimulus animals and semen collection location were not commonly required to stimulate most of the rams and to maintain their sexual interest during teasing. Collection of semen with the highest total volumes (2.39?0.05ml), sperm motility (90.02?0.82%), live spermatozoa (87.88?0.65%) and total sperm per ejaculate (5.0 x109) were obtained when rams were sexually teased for 10 minutes that included three false mounts (10R - 3FM). The results of this present study suggest that 10 minutes of sexual restraint in conjunction with three false mounts are not too time consuming to be practical as methods for increasing semen output. In an attempt to maximize sperm quality and quantity sexual teasing might precede each ejaculate.
D.O. Umesiobi , U. Kalu , U. Ogundu , M.U. Iloeje , D.C. Anyanwu and L.R. Mcdowell , 2004. Fertility Studies on two Methods of Libido Maintenance in West African Dwarf Rams . Journal of Animal and Veterinary Advances, 3: 81-84.