I wouldn't feed alot of earthworms to dragons...especially ones picked out of the garden. Being in the ground, they can absorb any chemical fertilizers, insecticides, etc used in the garden which can prove toxic to your dragon over a period of time. Also, earthworms could carry parasites that could cause troubles for your dragon.
I used to feed earthworms to my tropical fish as a treat and ended up having my tank covered in little parasitic worms...had to clean up the entire tank and treat all the fish for parasites...and this was just offering a single earthworm. Now these parasites may not infest bearded dragons...but rather not risk it.
Some insect larvae/grubs could be fine...but there are plenty of safe insect feeders available for dragons..maybe not as easy to get as crickets, especially if you are feeding huge amounts of babies... but if the cricket stock is likely to be low come spring...best to reduce number of animals one plans to breed.
Worse comes to worse, breeders end up not having many babies to sell next season...and demand may outweigh supply but that is far better than having a whole lot of starving baby dragons and unable to get in enough crickets or other feeder insects to feed them all.
Myself I don't breed bearded dragons...there just isn't any real point in doing so. I don't own any fancy morph dragons and those that seem to be the 'in' morph I am not all that fond off (ie transluscents) so I have no desire to own one, much less breed them. Also, I really do not have the space nor time to care for 20 baby bearded dragons..much less 100's. I am quite happy with my single female...she's enough trouble with her infertile egg laying (and given she tends to lay over 100 eggs total...I am glad she's not producing fertile eggs).
To enjoy the experience of breeding, I used crested geckos...I have since gotten out of crested geckos but they are fun to breed, easy to care for and hatching eggs and baby rearing is very easy...and numbers are far more manageable and less space demanding even with several females. Typical crested gecko may lay 6-10 eggs per season...with 8 being about average. They could lay as much as 12, but with only two eggs per clutch...its easy to cycle females out of egg production after 3-6 months of egg laying. Having 6-12 babies to care for in an entire season for a single gecko is far easier and less costly than 15-30 from a single dragon clutch to as much as 180.
So yeah, definitely anybody planning to breed dragons for the coming season should prepare for shortages of feeder insects. Either by breeding alternative insects, reducing number of animals bred etc...just to play it safe.
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PHLdyPayne
Forum Princess