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The incidence of angular and flexural limb deformities in Standardbreds in New Zealand and the influence on racing success By: Boukje Erdtsieck Supervisors: Dr. C.W. Rogers Prof. Dr. P.R. van Weeren

Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Aims of the study ,[object Object],[object Object]

Definitions ,[object Object],[object Object]

Definitions ,[object Object],[object Object],+

Hypotheses ,[object Object],[object Object],[object Object],[object Object],[object Object]

Materials and Methods ,[object Object]

Materials and Methods ,[object Object],[object Object],[object Object],[object Object]

Materials and Methods ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Materials and Methods ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Results : incidence ,[object Object],[object Object],[object Object],14,81 25,57 7,48 10,26 15,92 Percentage ALD 324 329 254 380 333 Total foals 279,5 262 235 341 280 No ALD 44,5 67 19 39 53 ALD Average per year Farm 2 04-05 Farm 2 03-04 Farm 1 03-04 Farm 1 02-03

Results : influence of sires and ALD ,[object Object]

Results : influence on racing success Normal percentage of qualification (based on season 02-03) Normal percentage of qualifying (season 02-03) 100 333 280 53 Total 100 38,74 129 101 28 NQ 61,21 1,8 6 6 0 Q 5 YO 59,64 10,81 36 32 4 Q 4 YO 48,65 28,83 96 83 13 Q 3 YO 19,82 19,82 66 58 8 Q 2 YO Percentage cumulative Percentage Total No ALD ALD

Results : Qualifying and ALD ,[object Object],[object Object],[object Object],312 56 No 0,058 1,541(0,985-2,410) 309 36 Yes Qualified before the age of 4 P-Value OR No ALD ALD

Results : Qualifying and sex ,[object Object],[object Object],[object Object],157 211 No >0,001 1,747 (1,299-2,350) 195 150 Yes Qualified before the age of 4 P-Value OR Colts Fillies

Results : Total Prizemoney earned ,[object Object]

Results : Total amount of starts ,[object Object]

Results : Prizemoney per start ,[object Object]

Results : ALD and export ,[object Object],[object Object],11 79 Total 11 68 No ALD 0% 0 Exp. USA 13,92% 11 Exp. Australia Percentage ALD

Conclusions ,[object Object],[object Object],[object Object],[object Object]

Discussion ,[object Object],[object Object],[object Object]

Follow up – research? ,[object Object],[object Object],[object Object],[object Object]

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Editor's Notes