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Figure 1: Age Structure and Sex Ratio PMWHR Spring 2004PowerPoint Presentation

Figure 1: Age Structure and Sex Ratio PMWHR Spring 2004

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Figure 1: Age Structure and Sex Ratio PMWHR Spring 2004

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Figure 1: Age Structure and Sex Ratio PMWHR Spring 2004

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Figure 1: Age Structure and Sex Ratio

PMWHR Spring 2004

Total Herd Size = 161 Horses

Known Age to 8 years

Estimated Age 9-25 years

Figure 2: Mare Pregnancy Results

PMWHR Spring 2004

Total Mares = 76

Known Age to 8 Years

Estimated Age 9-18 Years

Figure 3: Mare Interchange Activity

PMWHR 1998-2003

Number of breeding age mares (age > 2) = 404

Number of foals = 200

Figure 4: Mare Interchange Activity

PMWHR 1998-2003

Number of breeding age mares (age > 1) = 483

Number of foals = 200

Figure 5: Harem Interchanging Mares Losing Foals - PMWHR 1998-2003

Numbers indicate the number of interchanges per mare.

N= 17 mares

Figure 6: Ages of Interchanging Mares

PMWHR 1998 - 2003

N = 187 Mares

Figure 7: Herd and Foal Crop Sex Ratio - PMWHR 1971-2003

Even numbers of males and females is represented by a sex ratio of 1.

All Data Approximate

Figure 8: Annual Foaling Rate

PMWHR 1996 - 2003

Figure 9: Age Class Foaling Rates

PMWHR 1996-2003

N = 518 Maresand 269 foals

Figure 10: Population Numbers

PMWHR 1971-2003

All Data Approximate

Figure 11: Foaling Periods

PMWHR 1996-2003

Figure 12: Annual Foal Production by Age Class of Mares - PMWHR

Figure 13: Rate of Annual Increase in Herd Size PMWHR 1971-2003

All Data Approximate

Figure 14: Annual Foal Crop Survival

PMWHR 1996 - 2003

Figure 15: Total Foal Production

PMWHR 1996-2003

N = 518 Mares

Total of 269 Foals

Figure 16: Recorded Mortality

PMWHR 1996-2003

Age < 8 = known age

Age > 8 = estimated age

Figure 17: Foal Siring by Harem Stallions

PMWHR 1996-2003

Based on observational data for 246 harem stallionsand 269 foals

(Age<9 is known)

Figure 18: Foal Numbers by Harem Stallions

PMWHR 1996-2003

Based on observational data for 246 harem stallionswith surviving foals

Based on observational data for 246 harem stallionsand 269 foals

(Age<9 is known)

Extra Figure: Herd Color Balance

PMWHR 1996-2003