Differences in sexual behavior among rams have been recognized for many years (Terrill, 1937). Sexual behavior in rams is measured by various procedures (Wiggins et al., 1983 ; Katz et al., 1988 ; Perkins and Fitzgerald, 1992). Rams with high scores for sexual performance or libido can improve flock fertility (Mattner et al., 1971 ; Kelly et al., 1975 ; Perkins et al., 1992). Ram libido is genetically influenced (Kilgour, 1985 ; Purvis, 1985 ; Snowder et al., 2002). It is not known if selection of rams for libido will have a correlated effect on ewe reproduction. Therefore, the objective of the current study was to determine if libido of rams and reproduction of ewes are genetically associated.
Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume 2002. Session 14, , 14.1, 2002
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