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. 2017 Mar 19;63(3):279–287. doi: 10.1262/jrd.2016-160

Table 2. Changes in semen quality after puberty in a young Holstein bull.

Semen Age (months) Motility Concentration
(/ml)		 DNA damage by
TUNEL * (%)		 IVF {%, (no. of embryos, r)}
H1 10 3 1.1 × 108 0.2 0.0 (0/95, 2)
H2 10.5 5 2.4 × 108 2.9 0.0 (0/121, 2)
H3 15 80 5.2 × 108 2.1 29.5 (51/173, 3)
H4 25 70 2.7 × 108 - 31.3 (21/67, 2)

No. of embryos: number of blastocyst-stage embryos for a certain number of oocytes cultured after in vitro fertilization. r: repeat number for IVF experiment. * Takeda et al., 2015 [13].