@conference {89225,
	title = {Comparison of mating start date definitions for New Zealand dairy farms},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {73},
	year = {2013},
	month = {Jan},
	pages = {79-82},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Hamilton},
	abstract = {<p>If the mating start date (MSD) is incorrectly established through database monitoring, then several reproductive measures will also be incorrect in a seasonal calving dairy herd. The definition currently used by the InCalf Fertility Focus report is the first day withartificial breeding (AB) record(s) within a sequence of four of seven days with artificial breeding (AB) records (Method A). The objective was to compare this with alternative definitions to reduce the occasional incidence of incorrect MSD that have been encountered in these reports. The alternative definitions testedwere two consecutive and four out of seven days (Method B), one percent (Method C) and three consecutive days (Method D). The National Dairy Database was used to test these alternate definitions. Among 963 herds with less than 150 cows, the current definition of MSD was the most appropriate. Among 7,004 herds with greater than or equal to 150 cows, visual assessment indicated that a new definition was more accurate. This was that MSD be set as the first of two consecutive days when followed with four of the next seven days having recorded AB matings.</p>
},
	issn = {1176-5283},
	author = {Creagh FE and Sanders K and McNaughton LR}
}
@conference {78975,
	title = {Examination of New Zealand sport horse performance records and their suitability for the calculation of breeding values},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {72},
	year = {2012},
	month = {Jan},
	pages = {3-7},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Christchurch},
	abstract = {<p>Currently there is no genetic evaluation of sport horses in New Zealand. The aim of this study was to develop a prototype model for genetic evaluation of New Zealand sport horses. Official performance data for the 2008/09 and 2009/10 seasons were obtained from Equestrian Sport New Zealand. Data on dressage points per start (Dpps), eventing points per start (Epps,) and show jumping total prize money (Stpm) were examined using descriptive statistics. There were between 902 and 1,472 horses registered in each discipline. All three data sets were skewed but approached normality after a log10 transformation. Overall between two and eight percent of sires in each discipline had five or more progeny records available for genetic analysis. A sire model with fixed effects of season, gender and age and a random effect of animal were used to calculate estimated breeding values (EBVs) for each discipline. EBVs for Dpps ranged from -0.066 to 0.158, for Epps from -0.076 to 0.182, and for Stpm from -0.523 to 0.993. The use of EBVs could lead to increased genetic gain and improved performance of New Zealand sport horses. However, the current data recording has several limitations.</p>},
	issn = {1176-5283},
	author = {Creagh FE and Lopez-Villalobos N and Hickson RE and CW Rogers}
}
@conference {69491,
	title = {Preliminary examination of sport horse competition data for genetic evaluation},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {70},
	year = {2010},
	month = {Jun},
	pages = {143-145},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Palmerston North},
	abstract = {A sport horse can be defined as a horse which participates in one of the three equestrian disciplines represented at Olympic level. These disciplines are dressage, eventing and show jumping. There are approximately 5,000 horses registered for equestrian sport in New Zealand (Rogers \& Firth, 2005). Despite the relatively small size of the New Zealand equestrian sport population, the New Zealand industry has been successful in International sport with the production of predominantly show jumpers and event horses for the export market (Rogers, 1993; Rogers \& Firth, 2005).},
	issn = {1176-5283},
	author = {Creagh FE and Hickson RE and Rogers CW}
}
