QUIZ 1 Flashcards
Is Bovine Pregnancy-Specific Protein reliable to diagnose pregnancy after breeding a cow 80 days post-calving?
No
Can a positive diagnosis of pregnancy be made in a mare measuring progesterone 80 days after ovulation?
No
During canine breeding management, what hormone is commonly use to indirectly measure the LH surge?
Progesterone
he dominant follicle produces _____ and _______ that causes a negative feedback to suppress FSH release from the anterior pituitary gland:
Estrogen Inhibin
When is recommended to perform a pregnancy examination via transrectal ultrasound in a mare? 14 - 15 days after last artificial insemination 14 - 15 days after ovulation 14 - 15 days after administration of hCG 14 - 15 days after first artificial insemination
Pregnancy examination in the mare is recommended 14 - 15 days after ovulation. Ovulation is used as Day 0 of gestation.
In the Ovosynch protocol for ovulation synchronization, first we administer _____ , seven days later _____ and then two days later _____ .
GnRH, PGF2a, GnRH
In a pregnant cow that is within 2 weeks of her due date, the administration of or single drug can be used to induce
Prostaglandins or dexamethasone
In the bovine oestrous cycle, what hormone initiates the follicular waves?
FSH
During long photoperiods, excitation of the superior-cervical ganglion will cause high melatonin release?
False
What stage of the estrous cycle a queen in estrus will likely enter if she does not ovulate?
Postestrus
Poor estrus detection is considered a cause of reduced reproductive performance in cattle.
True
How many hours after a deslorelin injection is expected a mare to ovulate? Within 30 h Within 48 h Within 12 h Within 24 h
Within 48 h
When does the extragonadal source of progesterone start during gestation in cows? 240 days of gestation 100 days of gestation 180 days of gestation 50 days of gestatio
180 days of gestation
What is this image due to?
Estrogen
