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Table 2 Semen analysis in a bull homozygous for the 1-bp deletion in the coding sequence of QRICH2

From: A 1-bp deletion in bovine QRICH2 causes low sperm count and immotile sperm with multiple morphological abnormalities

Age of the bull (months)

Scrotal circumference (cm)

Ejaculate volume (mL)

Sperm concentration (109 sperm per mL)

Sperm with major defects (%)

Motile sperm (%)

Viable sperm (%)

14

31

5.0

0.031

97.3

0

na

16

32.5

4.0

0.187

99.6

< 1

na

5.0

0.115

97.9

< 1

na

17

33.5

2.8

0.160

100

0

12

3.0

0.088

98.7

< 1

10.8

20

34.5

4.5

0.214

99.2

0

4.2

4.5

0.360

99.3

< 1

10.4

  1. na not analysed