Avonali

Excuse Me(NZ) 1969 Appears to be the record holder across the Tasman.
1975 Dead foal and then produced 19 foals from 1976 to 1995.

Mareeka (1984) 18 live foals from 1987-2008 11 winners and 7 in 2.00. Also 3 foals born dead and missed once in this time.
Lovely Lawn 18 foals from 1949-1971 for 15 winners and was still trying to be bred from for another 3 years,she got in foal but couldn't carry the last 3 full term after 1971.

Ark Maree(1988) 14 foals including 1 that died, 10 to the races for 9 in 2.00 and still has another 3 young ones yet to race.

Came across another mare last night, Chaangerr(1990) mother of Changeover has had a foal every year from 1996 to 2013, 18 in all and including 1 Embryo Transfer and she was served by Mach Three on the 26/12/13 but no result has been published yet, Pretty sure that Teecee or one of our Kiwi connections would know or could find out if she had a foal this year. Thanks for your help in tracking this thread down Kev.