Difference between revisions of "Camelid Pregnancy Diagnosis - Anatomy & Physiology"
Jump to navigation
Jump to search
m |
|||
Line 1: | Line 1: | ||
− | + | {{toplink | |
− | + | |backcolour =EED2EE | |
− | + | |linkpage =Reproductive System - Anatomy & Physiology | |
− | + | |linktext =Reproductive System | |
− | + | |maplink = Reproductive System (Content Map) - Anatomy & Physiology | |
− | + | |pagetype =Anatomy | |
− | + | |sublink1=Reproductive System - Anatomy & Physiology#Camelids_.28LLamas_.26_Alpacas.29 | |
+ | |subtext1=CAMELIDS | ||
+ | }} | ||
+ | <br> | ||
== Rejection Behaviour == | == Rejection Behaviour == | ||
Revision as of 12:03, 3 September 2008
|
Rejection Behaviour
- Rejection of the male usually indicates that conception may have taken place.
- Not very reliable, since a persistent corpus luteum will also cause rejection.
- A persistent corpus luteum may cause continued rejection by a non-pregnant female.
Ultrasound Scanning
Ultrasound scanning is the most reliable method of diagnosing pregnancy and can be highly accurate. However, ~10% of established pregnancies fail, so a positive scan will not guarantee live cria.
- Possible only a few days after conception.
- For early scans, a rectal probe must be used.
- Rarely practiced because the procedure causes much stress to the female, which is undesirable if she is pregnant.
- More commonly scanned using a transabdominal probe from ~28 days onwards.
Blood Testing
- Blood tests to measure progesterone concentration.
- Level of progesterone required to maintain pregnancy varies.
- Cria have been born to dams with very low plasma progesterone concentrations.
- Variability makes blood tests unreliable.
Rectal Examination
- Manual palpation of the uterus through the rectal wall.
- Impractical for smaller females.
- Will cause undesirable stress to the female.
Foetal Heartbeat
- Specialist listening devices such as 'Sonicaid' can detect a foetal heartbeat from ~10 weeks of gestation.
- 80-90% accurat if used at ~10 weeks.
- Becomes more difficult as the foetus enlarges and slides down into the abdomen.