A 15-year survey of reproductive efficiency of Standardbred and Finnhorse trotters in Finland - descriptive results

Table 7 Age distribution of Thoroughbreds (TB), Standardbreds (SB) and Finnhorses (FH).

Mating seasons	Young (%)	Middle-aged (%)	Ageing (%)	Very old (%)
TB
1982-3	51.8	30.0	14.6	3.6
1998	53.5	29.7	14.0	2.8
2002	45.1	32.8	17.0	4.3
SB
1991-4	53.9	29.8	10.7	5.7
1995-8	50.6	31.6	11.1	6.7
1999-2002	42.8	34.6	14.3	8.3
FH
1991-4	39.9	31.0	18.3	10.8
1995-8	41.3	32.3	14.4	12.0
1999-2002	33.8	34.5	17.9	13.8

Young = 3-8 y for TB and 2-9 y for SB and FH; middle-aged = 9-13 y for TB and 10-13 y for SB and FH; ageing = 14-18 y for TB and 14-16 y for SB and FH; very old = > 18 for TB and 17-25 for SB and FH.
TB data 1982-3 from Sanderson and Allen (1987), 1998 from Morris and Allen (2002), and 2002 from Allen et al. (2007) [6, 9, 11].

ISSN: 1751-0147