Genetics and Breeding Flashcards
mare effects on phenotype
uterine environment
milk production
temperament
what factors impact phenotype
genetics
environment
T/F genetic progress decreases as selection pressure(# of traits selected for) increases
TRUE
average generation interval of horses
10 years
T/F temperament and conformation have been found to be highly heritable
TRUE
environmental effects
feed and hay
facility/arena
trainer
judges
event cattle
what environmental factor has the biggest impact for growing horses
feed and hay
what sire has a higher correlation of navicular syndrome in his offspring
Zippo Pine Bar
all major sires can be traced back to which top sire
Three Bars
mating systems
inbreeding
inbreeding depression
linebreeding
outcrossing
crossbreeding
what signifies something as inbreeding
inbreeding coefficient > 10%
successful example of inbreeding
wimpy P-1(comes from old sorrel)
inbreeding depression
expression of recessive genes for individual characteristics
major sire of HERDA
Poco Bueno
what is HERDA
recessive genetic disease leading to skin issues that will eventually cause death