||1 male for 10 females
|Age at which first
||Small breeds - 4 months age
Medium breed - 5 to 6 months (Newzealand White, Chinchilla)
||Polyoestrous. A female rabbit
appears to have no definite oestrus cycle although a certain rhythm
exists in their sexual receptivity. Cycle lasts for about 12 days of
which 4 are infertile.
|Signs of heat
||Congested, purple and moist vulva,
restlessness, rubbing the chin on the sides of the cage, lying in
mating posture and lifting the tail
||The doe is always taken to the
buck’s cage for mating, and if the doe is in full sexual receptivity
it will lift the tail and
within a minute the buck will be mating the doe. Mating is
successful when the buck falls to one side or backwards
||Ovulation occurs 10 - 13 hours
after copulation – reflex
||Pseudopregnancy in rabbit may
result from sterile copulation and lasts for 16 to 17 days. At the
end of this period she may pull hair from her body and attempt to
make nest and shows development of uterus and mammary gland.
||28 -34 days (average
||The methods adopted
to determine the state of pregnancy
are test mating, weight gain method and the ‘palpation
technique’. The palpation technique is the most reliable
method if done by an experienced person.
||A completely relaxed
doe should be placed on a table which has been covered in sacking to
prevent her from slipping.
The doe should be restrained by gently holding the fold of
skin behind ears and over the shoulders. The left hand is
placed under the body between the hind legs and in front of the
pelvis. The uterine horns are felt gently using fingers and thumb.
The thumb is placed to right of horns. Embryos can be located and
felt like small marble shaped bodies slipping backwards between
thumb and fingers when moved gently in a sideways direction. An
experienced person can deter-mine pregnancy by 8th to 10th day of
mating using this technique. During last week of pregnancy a nest
box lined with wood shaving or hay or coir fibre should be placed
inside the cage.
||2 months (it may be
as short as one month if bred immediately following kindling)