. Ciba Foundation colloquia on ageing. Old age; Aging; Animals -- growth & development. Longevity of English Thoroughbred Horses 47 progeny in samples A and B of parents 16 years old or over, 154 lives were obtained, with e^^^ = 16-45 ±0-62 years, which is less than any of the three global means, but not sig- nificantly so. These results, taken as a whole, seem to afford no good evidence of any consistent effect of parental age on the longevity of mares. lOO 9 PROGENY OF STALLIONS HERMIT. GALORN & HAMPTON ALL (412) 0 0 0 SIRE$20 YRS (121). Fig. 3. Survival curves of lifetime brood mare
. Ciba Foundation colloquia on ageing. Old age; Aging; Animals -- growth & development. Longevity of English Thoroughbred Horses 47 progeny in samples A and B of parents 16 years old or over, 154 lives were obtained, with e^^^ = 16-45 ±0-62 years, which is less than any of the three global means, but not sig- nificantly so. These results, taken as a whole, seem to afford no good evidence of any consistent effect of parental age on the longevity of mares. lOO 9 PROGENY OF STALLIONS HERMIT. GALORN & HAMPTON ALL (412) 0 0 0 SIRE$20 YRS (121). Fig. 3. Survival curves of lifetime brood mare progeny of Hampton, Galopin and Hermit (O O) and of mares got in or after their sire's 20th year (Comfort, 1958a). Reproduced by courtesy of the Editor, Journal of Gerontology. Correlation betw^een lifespans of parents and offspring Since age of death depends in part upon heritable factors there should be a measurable difference in longevity between the foals of long-lived and short-lived parents, though Beeton and Pearson's (1901) results in man suggest that it would not be large. All the mares in sample A were scored for the longev- ity of their dam, and as many as possible for the longevity of their sire; the date of death could be ascertained only for stallions appearing in the obituary lists, or rather less than half. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ciba Foundation; Wolstenholme, G. E. W. (Gordon Ethelbert Ward). Boston, Little, Brown
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Keywords: ., bookcentury1900, bookpublish, booksubjectaging, booksubjectoldage
