LA1- Bovine Repro (Anatomy-Estrus Detection)

what are the 3 functions of repro in bovines?
SGF

what is the most popular method of insemination?

what are the benefits of natural breeding?
RW
*what is the major disadvantage to natural breeding?

cows are __ year round

how often do they cycle?

how long is their standing heat?

why is heat detection so important?

how long is their gestation?

how early do heifers start breeding?

when should heifers have their first calf?

Day 18/21 day cycle:
CL has developed after the previous ovulation 
begins to __ and __ regress and __ concentrations decline

__ causes the signs of estrus and leads to the release of __ __ from the APG which starts ovulation

at the site of ovulation the new __ __ starts to grow and produces __

if the cow is not pregnant, __ will e released by the uterus and the __ will regress

GnRH causes the pituitary gland to secrete what?

GnRH causes what?

GnRH can be used in the tx of what dz?

Name 2 examples of commercial GnRH:CF

PGF2a is what?

What does prostaglandin cause?

PGF2a _ progesterone and allows new _ to grow.

Prostaglandin is used in the tx of what?

Why is PGF2a used with caution?

Name 3 commercial prostaglandins:LLE

What is a FDA approved progesterone implant?

Signs of estrus:SMNVVIV

Dection of estrus:OCMH