Sexual performance has been subjectively measured with a libido test during screening of rams before public sale and breeding at the U.S. Sheep Experiment Station from 1990 to 2000. The objective of this study was to determine whether sexual performance was genetically influenced. Sexual performance scores ranged from 1 to 6 with scores increasing from sexually inactive to highly sexually active in the presence of estrous ewes. The overall average score was 3.5 ± 0.02. Records from four breeds (Columbia, n = 807; Polypay, n = 1,668; Rambouillet, n = 1,208; and Targhee, n = 1,002) were combined into one analysis because breeds had similar phenotypic variances. Total number of records was 4,685, which included a second sexual performance test...
It is accepted that an important source of variation in the response of anoestrous ewes, to the intr...
International audienceIn seasonally anoestrous ewes of many breeds, the introduction of rams trigger...
A procedure for assessing sexual activity (libido) in individual rams is described. Mating activity ...
Rams express differences in sexual performance during the breeding season. Breeding rams with high s...
Thesis (Ph.D.)-University of Natal, Pietermaritzburg, 1988.The incidence of sexually low-response ra...
International audienceThe objective of this study was to determine any differences in the competitiv...
We investigated if sexual behaviour of rams can be assessed with an electronic Alpha-Detector (AD) w...
This study estimated the magnitude of sexual dimorphism, i.e. sex specific heritabilities and correl...
International audienceThe purpose of this study was to determine whether the ejaculation rate (servi...
The drive to mate females is variable among the rams and can have a major impact on sheep production...
International audienceThe following study examines the effect of early sexual experience on the sexu...
The reliability and consistency of the many measures proposed to quantify sexual selection have been...
Unlike males from other domestic species, domestic rams (Ovis aries) are not sexually stimulated, as...
peer-reviewedRams with strong libido and desirable semen characteristics can provide more inseminat...
Data from 51 107 and 11 839 ejaculates collected on rams of the “Lacaune” and “Manech tête rousse” ...
It is accepted that an important source of variation in the response of anoestrous ewes, to the intr...
International audienceIn seasonally anoestrous ewes of many breeds, the introduction of rams trigger...
A procedure for assessing sexual activity (libido) in individual rams is described. Mating activity ...
Rams express differences in sexual performance during the breeding season. Breeding rams with high s...
Thesis (Ph.D.)-University of Natal, Pietermaritzburg, 1988.The incidence of sexually low-response ra...
International audienceThe objective of this study was to determine any differences in the competitiv...
We investigated if sexual behaviour of rams can be assessed with an electronic Alpha-Detector (AD) w...
This study estimated the magnitude of sexual dimorphism, i.e. sex specific heritabilities and correl...
International audienceThe purpose of this study was to determine whether the ejaculation rate (servi...
The drive to mate females is variable among the rams and can have a major impact on sheep production...
International audienceThe following study examines the effect of early sexual experience on the sexu...
The reliability and consistency of the many measures proposed to quantify sexual selection have been...
Unlike males from other domestic species, domestic rams (Ovis aries) are not sexually stimulated, as...
peer-reviewedRams with strong libido and desirable semen characteristics can provide more inseminat...
Data from 51 107 and 11 839 ejaculates collected on rams of the “Lacaune” and “Manech tête rousse” ...
It is accepted that an important source of variation in the response of anoestrous ewes, to the intr...
International audienceIn seasonally anoestrous ewes of many breeds, the introduction of rams trigger...
A procedure for assessing sexual activity (libido) in individual rams is described. Mating activity ...