It looks like you're new here. If you want to get involved, click one of these buttons!
Anyone know of a study on optimal nesting-soil temps for Acheta domesticus eggs during incubation?
Hi JButera, - As stated before I don't rear crickets, so the following may be out dated.
32 -36 °Celsius was used by Parajulee, DeFoliart & Hogg when trialed mass Acheta domesticus rearings in 1993. This temperature for eggs was cited as being determined from Roe, et al. (1980) "The effect of temperature on feeding, growth, and metabolism during the last larval stadium of the female house cricket".
They used peat as a egg laying substrate & average days to eggs hatching was after a 9 day incubation. Incidentally, they observed adults kicking-up the substrate causing some to be swept out that dish. When they widened the egg laying dish diameter they noticed that most of the kicking-up occurred in the central area; the broader expanse for egg laying kept down the amount of substrate (& potentially eggs) that was swept out of the laying dish.
While on the subject of A. domesticus eggs the following report discusses 20C, 27C & 34C fecundity. If the light is increased from 12 hours daily to 16 hours daily there is approximately a 5% increase in eggs laid. When density of adult crickets is increased from 200/square meter to 800 adult crickets/sq.mt. fecundity declines by about 50%.
In regard to dietary protein if the adults are fed 50% protein they lay 3 times as many eggs as when fed only 10% protein. See free full text: https://www.researchgate.net/profile/Robert_Sturm2/publication/291766383_Computer_Models_in_Entomology_Predicting_the_Daily_Fecundity_of_Female_Acheta_domesticus/links/56bb0dad08ae3af6847dfac1.pdf
It may be of further interest to read how the same author, R. Sturm, later found that Acheta domesticus larvae grow at the average rate of 0.021 mm/day at 23 Celsius, but that growth rate increases to an average of 0.355 mm/day when reared at 30 Celsius. However, citing his own (& others) non-English language research, suggests that their growth rate slows down somewhere in the range of 34 - 38 Celsius. See free full English text (Note: this research is not exclusively about A. domesticus & trialed some slightly different temperatures than the study immediately referred to above) :
Thank you gringojay, you're a big help as always. ~JB