ANBI 360.3 Lecture Notes - Lecture 31: Oophorectomy, Oncology, Chemotherapy
20 Jun 2018
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LECTURE 31
geriatric dogs!
longevity !
lidespan varies!•
smaller dogs live longer 15?!•
larger dogs- 12?!•
greyhounds- 5?!•
!
outdoor cats average life expectancy= 6 years!
!
sex differences in longevity!
females in this studies loved longer than males!•
having an ovariectomy before 4 years negated this!◦
!
longevity correlated to : personality & energy expenditure!
obedient, docile or shy dogs live longer than disobedient or bold dogs!•
aggressive dogs have higher energy needs!•
"proactive" live fast and die young!•
"reactive" live slow and die old!•
activity was inversely correlated to body size!•
selection for large dogs that were less active. but for small dogs that were more active?!•
trainability was inversely correlated to mass adjusted mortality rate !•
!
age equivalency!
dog$ $ cat $ $ human!
1$ $$ 1$ $ 15!
2$ $$ 2$ $ 25!
3$ $$ 3$ $ 29!
4$ $$ 4$ $ 33$ $ !
5$ $$ 5$ $ 37!
after development 1 pet year ~4 human years!
!
common causes of death!
cancer is the most common!•
bone!◦
other!◦
gastrointestinal 8%!•
musculoskeletal 6%!•
cardiovascular 4%!•
neuralgic 2%!•
urologic 1%!•
frailty 1%!•
!
geriatric changes!
hair greys!•
not equally in all dogs!•
usually around eyes and muzzle!•
increased irritability!•
limited hearing or sight may cause dog to be frightened more easily!◦
