Table 1.

Effect of vomeronasal organ removal on sexual behavior of sexually naive male mice

Behavior VNOi (n = 11) VNOx (n = 9)
Anogenital investigation
Percentage showing 100 100
Latency (min) 26.5 ± 10.7 15.5 ± 12.6
Number per test 4.8 ± 0.8 4.5 ± 1.3
Mounts (with or without intromission)
Percentage showing 100 100
Latency (min) 23.3 ± 16.8 15.3 ± 6.6
Number per test 35.5 ± 4.6 28.0 ± 7.5
Mounts per minute 1.5 ± 0.3 0.9 ± 0.3
Mounts (with intromission)
Percentage showing 100 100
Latency (min) 27.1 ± 14 21.1 ± 9.6
Number per test 20.8 ± 2.9 20.5 ± 6.0
Mounts (with intromission) per minute 1.0 ± 0.2 0.6 ± 0.2
Interintromission interval (min) 3.1 ± 1.0 3.4 ± 0.9
Percentage of mounts leading to intromission 27.0 ± 6.4 26.6 ± 8.6
Ejaculations
Percentage showing 91 100
Latency (min) 29.4 ± 4.3 41.9 ± 11.7
  • Data were summed over two 4 hr tests and are expressed as mean ± SEM.