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| feedback3="'''Incorrect.''' The guinea pig depends on placental progesterone during late pregnancy. The corpus luteum is the principal source of progesterone for 100% of the sow's pregnancy. [[Parturition - Endocrine Control of Parturition - Anatomy & Physiology#Onset of Parturition |WikiVet Article: endocrine control of parturition]]." | | feedback3="'''Incorrect.''' The guinea pig depends on placental progesterone during late pregnancy. The corpus luteum is the principal source of progesterone for 100% of the sow's pregnancy. [[Parturition - Endocrine Control of Parturition - Anatomy & Physiology#Onset of Parturition |WikiVet Article: endocrine control of parturition]]." |
| feedback1="'''Incorrect.''' The corpus luteum is the principal source of progesterone for 79% of the queen's pregnancy and during the remaining 21%, the placenta is the principal source. The corpus luteum is the principal source of progesterone for 100% of the sow's pregnancy. [[Parturition - Endocrine Control of Parturition - Anatomy & Physiology#Onset of Parturition |WikiVet Article: endocrine control of parturition]]." | | feedback1="'''Incorrect.''' The corpus luteum is the principal source of progesterone for 79% of the queen's pregnancy and during the remaining 21%, the placenta is the principal source. The corpus luteum is the principal source of progesterone for 100% of the sow's pregnancy. [[Parturition - Endocrine Control of Parturition - Anatomy & Physiology#Onset of Parturition |WikiVet Article: endocrine control of parturition]]." |
| + | image= ""> |
| + | </WikiQuiz> |
| + | <WikiQuiz |
| + | questionnumber="8" |
| + | question="What is the most practical and reliable way of diagnosing pregnancy in an alpaca which has been served over 28 days previously?" |
| + | choice1="Transabdominal ultrasound scan" |
| + | choice5="Rejection behaviour" |
| + | choice3="Blood progesterone concentration" |
| + | choice2="Rectal exam" |
| + | choice4="Non return to oestrus" |
| + | correctchoice="1" |
| + | feedback1="'''Correct!''' Ultrasound scanning is the most reliable method of diagnosing pregnancy and can be highly accurate particularly after 28 days. However, around 10% of established pregnancies fail, so a positive scan will not guarantee live cria. [[Camelids %28LLamas & Alpacas%29 - Pregnancy Diagnosis - Anatomy & Physiology|WikiVet Article: Alpaca pregnancy diagnosis.]]" |
| + | feedback5="'''Incorrect.''' Rejection of the male usually indicates that conception may have taken place but it is not very reliable because if the female had a persistent corpus luteum they will also reject the male. Transabdominal ultrasound scanning is the most reliable method of diagnosing pregnancy and can be highly accurate particularly after 28 days. However, around 10% of established pregnancies fail, so a positive scan will not guarantee live cria. [[Camelids %28LLamas & Alpacas%29 - Pregnancy Diagnosis - Anatomy & Physiology|WikiVet Article: Alpaca pregnancy diagnosis.]]" |
| + | feedback3="'''Incorrect.''' The level of progesterone required to maintain pregnancy varies, in fact cria have been born to dams with very low plasma progesterone concentrations. This variability makes blood tests unreliable. Transabdominal ultrasound scanning is the most reliable method of diagnosing pregnancy and can be highly accurate particularly after 28 days. However, around 10% of established pregnancies fail, so a positive scan will not guarantee live cria. [[Camelids %28LLamas & Alpacas%29 - Pregnancy Diagnosis - Anatomy & Physiology|WikiVet Article: Alpaca pregnancy diagnosis.]]" |
| + | feedback2="'''Incorrect.''' This is impractical for smaller females or for veterinarians who don't have very small hands and it will cause undesirable stress to the female. Transabdominal ultrasound scanning is the most reliable method of diagnosing pregnancy and can be highly accurate particularly after 28 days. However, around 10% of established pregnancies fail, so a positive scan will not guarantee live cria. [[Camelids %28LLamas & Alpacas%29 - Pregnancy Diagnosis - Anatomy & Physiology|WikiVet Article: Alpaca pregnancy diagnosis.]]" |
| + | feedback4="'''Incorrect.''' The proportion of females displaying strong oestrus behaviour is usually small and not all the females will show all these signs so this is unreliable. Transabdominal ultrasound scanning is the most reliable method of diagnosing pregnancy and can be highly accurate particularly after 28 days. However, around 10% of established pregnancies fail, so a positive scan will not guarantee live cria. [[Camelids %28LLamas & Alpacas%29 - Pregnancy Diagnosis - Anatomy & Physiology|WikiVet Article: Alpaca pregnancy diagnosis.]]" |
| image= ""> | | image= ""> |
| </WikiQuiz> | | </WikiQuiz> |