Paul Miles one of the early pioneering herpetoculturist
purchased a pair of captive hatched Boelen’s Pythons from
the Miller hatching mentioned above. While raising this pair he
also was able to purchase a long term female from Ron Tremper acting
as a broker for Frank Retes. This female was large, approximately
10 feet, robust and clearly at a mature age and size. At the end
of 1992 the captive hatched animals were three years of age and
approximately 8-9 feet. Paul started to cycle the group in the late
fall leaving the day time high temperature of 85 F at a constant
while slowly dropping the night time low temperature several degrees
every week or two. Over several weeks the night time low temperature
reached 55 F. This was as low as the room would allow the ambient
temperature to get at Paul’s breeding facility. During the
temperature drop the male courted and copulated with the long term
female but showed no interest in his sibling. This may indicate
that she was not mature and therefore not releasing pheromones.
The group remained at this temperature for approximately two weeks.
Follicle development was evident, followed soon after with ovulation.
At this time Paul started to slowly raise the night time low temperature
gradually returning it to the mid to upper 70s F. During gestation
the female basked throughout the day. The eggs were deposited thirty
days after the pre-lay shed. Miles used a styrofoam box filled with
moist sphagnum as a nest box. Paul remarked that this particular
female was well mannered and did not detest during the removal of
the eggs. The sixteen eggs were placed in a homemade incubator on
vermiculite and incubated at a constant 89 F. The eggs were large,
full, and white and remained that way until hatching 70 days later.
Unfortunately only six survived, all the eggs piped but several
of the hatchlings drowned inside the egg due to over hydration during
the end of incubation. Artificial incubation has come along way
since the time of this hatching and we now know that most tropical
python eggs have to suffer water loss resulting in dimpling and
brittle shells to aide in a successful hatch. Regardless of the
learning curve six hatchlings was still an amazing feat. The hatchlings
were marked with the typical rust colored bodies and light banding
and weighed approximately 26 grams. This reproduction marked a great
leap towards furthering the knowledge of what may be needed to ensure
future successful reproductions.
While
vermiculite is a good medium to incubate on, I suggest removing
the eggs upon the first one pipping and placing them on a grid over
damp paper towels. This will eliminate the vermiculite from sticking
to the already delicate hatchling. Photo by Miles.
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