@conference {3672,
	title = {Reproductive production constraints within the New Zealand racing industry},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {76},
	year = {2016},
	month = {07/2016},
	pages = {146-150},
	address = {Adelaide},
	abstract = {The New Zealand Thoroughbred industry has seen
rationalisation in response to changes in the domestic
market and more recently the Global Financial Crisis
(GFC). To quantify changes in production, end-of-season
reproductive data for active Thoroughbred sires were
extracted for the 1989/90 to 2011/12 breeding seasons.
There were reductions in the numbers of mares bred and
foals produced (10,176 mares \& 5,882 foals vs. 5,826
mares \& 3,927 foals, respectively in 1989/90 and 2011/12
seasons) resulting in a greater relative proportion of foals
registrations (57\% vs. 67\%). During this period, the
number of active sires decreased (265 vs. 94) and number
of mares per sire increased (33 IQR 18-53 vs. 49 29-91).
The 2007/08 season (GFC) was associated with an acute
reduction in the number of shuttle stallions imported for
breeding (from 23\% in 2006/07 to 11\% of active sires in
2007/08), and a temporary increase in number of mares bred
(13\%), in response to the 2007 Equine Influenza outbreak
in Australia. The proportion of sires covering >100 mares
per season increased from 6\% (1989/90) to 25\% (2011/12).
Despite the reduction in active broodmares during the same
period (43\%), there has not been a proportional decrease
in export numbers (24\%) or domestic numbers of horses
racing (6.5\%).},
	issn = {1176-5283},
	author = {Rogers CW and Gee EK and Bolwell CF}
}
