exam 2 swine reproduction Flashcards
how many functional teats does the female need to have on each side
6functional teats on each side
which breed reaches puberty early
the meishan reaches puberty as early as 67days
what are some hastening factors to onset of puberty
movement mixing of females
longer days
the boar effect
T/F long day length reduces age at puberty
true
what is the most common onset of puberty
boar effect
what kind of boar do you want to use for the boar affect
mature smelly boar
what kind of estrous cycle do swine have
polyestrus, non seasonal, 21days
ovulation occurs _____ of the way thru estrus aka 36hours average
2/3
what are some signs of estrus
vulva swelling and redness
vaginal dc
restlessness n vocalizaiton
actively seeking boar
back pressure test
estrus occurs how many days post weaning
4-7days post weaning
what can u use as a synthetic progestogens
altrenogest
how are the testes displayed in the swine
upside down so basically the tail of the epidymis is crainal and the head is caudal
what sex gland does the pig not have
ampulla
the vol of the insemination dose should be between what
80 and 100mls
the # of normal sperm required in a dose ranges from 3-5billion sperm cells
yup
what are some advantages to doing AI
allows introduction of new genetic material into a heard with minimum risk of dz,
allows more extnesive use of older boars on lighter weight females
decreases the # of boars and time required for breeding when estrus is synchronized
what kind of placentation does the swine have
epitheliocorial diffuse placentation
what do you not give in a dystocia case if there is obstruction
oxytocin
what prognosis does a uterine prolpase have
grave
in between what days does EED happen
0-35
in between what days does mummification happen
35-114
what is the most common non infectious casues of infertility
hydrosalpinx
what is themost common casue of poricne preganancy losses
lepto is zoontic!
is brucella suis reportable
yes sir!
