Classic Classic Quiz Semen Evaluation for Artificial Transfer by Diamondsareforever Diamondsareforever 22 played - 13 yrs ago Based on the syllabus for the FDSC Equine Science and Management Breeding and Stud Mangement module. QUIZ 20 QUESTIONS hard 1 Which of these is semen not evaluated for? ColourVolumeConcentrationMotilityTotal Spermatozoa Count 2 What is semen extremely sensitive too? Size and Air DensityTemperature and Wind SpeedOxygen Levels and Carbon Dioxide LevelsContamination and Oxygen LevelsTemperature and Contamination 3 What temperature should semen be kept at? 37C39C37. 5-38. 5c36C38C 4 What are extenders based on? Non-fat dried milk solidsNon-fat liquid milkFat dried milk solidsFat liquid milk solidsDried milk solids and carbon 5 How might sperm motility be assessed? Adding a dilator to the spermAdding extendorUsing a haemocytometerAdding a dye to the solutionComputerized analysis system 6 What is the problem with using a computerized analysis system? Very cheapUnreliableToo accurateVery expensiveInnacurate 7 What is a more common way of assessing sperm motility? VisualOralComputerised analysis systemHaemocytometerNigrosin-eosin stain 8 What is the minimum percentage of progressively motile spermatozoa needed? 10%72%90%30%40% 9 How is concentration assessed? Counting grid or haemocytometerVisual or nigrosin-eosin stainComputerized analysis system or haemocytometerNigrosin-eosin stain or counting gridVisual or Aural 10 How might morphology be assessed? Counting grid or visualCoputerised analysis system or Nigrosin-eosin stainMicroscope or Nigrosin-eosin stainVisual or haemocytometerNigrosin-eosin stain or Haemocytometer 11 What does a nigrosin-eosin stain do? Stain heads of dead spermStain heads of live spermStain tails of dead spermStain heads and tails of dead spermStain tails of live sperm 12 What else should be determined? MotilityConcentrationVolumeColourAbnormalities 13 What does the evaluation procedure allow the breeding manager to do? Determine the necessary volume of ejaculate needed for inseminationDetermine how many progressively motile spermatozoa are normally in that stallions semenDetermine whether that stallion should be used for AIDetermine future information so testing does not have to be performed againDetermine the colour of the mare that the stallion should be bred too 14 How often should an evaluation be performed Once a monthAfter the first collectionAfter every collectionAfter the first collection of that seasonAfter the stallions diet changes 15 How many progressively motile spermatozoa does a mare need to be inseminated with? 500 million200 million10 million150, 000900 million 16 How many spermatozoa does a stallion normally produce? 500 million10 billion1-5 billion250 million4-12 billion 17 What does this allow for? Spare spermatozoaMultiple inseminationsMore stallion collectionsLess inseminationsAn excuse for the use of AI 18 Which of these is not evaluated for when looking at semen? Oxygen densityOverall characterVolumeMotilityConcentration 19 Where are computerised motility analysis systems normally used? During researchDuring normal stud workDuring the winterOn small scale stud farmsOn farms with fewer staff 20 What should always be added to collected semen? More semenMore spermatozoaMilkWaterAn extender A mistake in this Quiz ? Contact the author Commentaires