Lectures 6-7 Flashcards
What are two types of sheep housing which provide good ventilation?
Yorkshire boarding
plastic mesh
What are the two ideal conditions of good sheep housing?
low humidity
good ventilation
What two features must polytunnels have to have adequate ventilation?
open ends
plastic meshing at the edges
As opposed to indoor housing, where can sheep be kept during the winter?
open straw yards
How long should ewes and lambs be left in the mothering up pens?
24hrs
Why should sheep follow on pens contain lambs of similar ages?
because older lambs can transmit disease (particularly coccidiosis) to younger lambs
How much trough space do large ewes require in late pregnancy?
50cm
How much trough space to small ewes require in late pregnancy?
45cm
What should ewes in late pregnancy be fed if they are being fed ad lib?
total mixed ration
If sheep are on rationed mixed twice a day, how many sheep need to be able to feed at once?
All the sheep
How much water can a ewe at peak lactation drink if being fed on a hay based diet?
9l/day
How many sheep does a sheep have to see at any one time to be happy?
2
What two physiological changes occur if a sheep gets stressed e.g. through isolation?
increased cortisol
increased PCV
What is a sheep gestation period?
146-147 days
Why should new rams be introduced before tupping season starts?
to reduce fighting and stress and hence increase spermatogenesis
What is a useful indicator of pain in a sheep?
facial expression
Where do you look on a sheeps face to assess pain?
orbital area cheek area ears lips nostrils
During what season are rams introduced to ewes for tupping?
autumn
How many body condition scores do rams lose per week during tupping?
0.5
What BCS should rams be before tupping starts?
3.5-4
Under what BCS should ewes NOT be served?
2
What is the term for increasing the ewes plane of nutrition 3-4 weeks before tupping?
Flushing
For what sheep is flushing normally not carried out for?
highland sheep
How long does it take a sheep to gain 1 BCS
6 weeks