Table 2: Variation between stallions in sperm viability (%) in two semen extenders, Kenney’s extender and INRA96 (n=12 stallions, 45 ejaculates).

Stallion (no. ejaculates)Kenney’s extenderINRA96
0 hour24 hours0 hour24 hours

AA (4)59±8a43±5a68±4b47±4b
DD (4)70±3b52±4bd74±963±7d
I (4)74±3a49±15ad76±555±25d
J (3)66±260±8d74±2c62±3cd
K (4)69±9a52±6ad71±563±6d
L (3)74±663±681±677±7
N (4)67±4ae58±5ad78±3ae69±4ad
O (4)67±1354±3e82±4a71±6ae
Q (4)72±7a54±10ad65±2771±7d
R (4)76±5c47±13cd77±3a63±9ad
T (3)64±540±1569±756±13
U (4)64±556±672±461±10

Note: overall differences between stallions P<.001; overall difference between treatments, P<.001; overall difference between 0 and 24 hours, P<.001.a: difference between 0 and 24 hours within extender, P<.05; b: difference between 0 and 24 hours within extender, P<.001; c: difference between 0 hour and 24 hours within extender, P<.01; d: difference between extenders, P<.05; e: difference between extenders P<.01.