exam 3 Flashcards
(60 cards)
Where did wild horses inhabit most in the open areas?
Eurasia
When were many wild horses domesticated?
2 millennia BC
What did they do with the wild horses in 2 millennia BC?
exterminate them
horse found in Eastern Europe in until middle of the 19th century
tarpan (E. caballus caballus)
horse that is considered a distinct species?
Prezewalski
Where did the Prezewalski horse live?
remote steppe region between china and mongolia
Which style of riding requires more balance?
English
what is artificial lighting used for?
to trick the mares brain into thinking the days are longer
EFD
expected foaling date
gestation of a horse
320 days
How long is considered overdue in a horse?
2 weeks
at what day a pregnancy should you contact your vet if she has not foaled?
365 days
What stage of foaling does the mares water break?
stage 2
What is the 1,2,3 rule in foals?
standing within 1 hour, nursing within 2 hours, pass meconium within 3 hours
Important parts of zoo animal welfare
nutrition, enrichment, housing
Why is nutrition important to zoos?
because the animals have different digestive systems
what are the major problems in zoos?
pacing, circling, and head swaying
What animals can’t get rabies?
virginia opossums
endoderm
differentiates into the digestive tract, lungs, and bladder
mesoderm
skeleton, skeletal muscles, and connective tissues
ectoderm
skin, hair, brain, spinal cord
hyperplasia
increase in cell numbers; most of increases in fetus during first 2/3 of prenatal period
hypertrophy
increase in cell size; last trimester of pregnancy and postnatal growth
mare and sow placenta type
diffuse
