Crickets vs. Mealworms

A recent report details some key differences between adult Acheta domesticus crickets & Tenebrio molitor "yellow" mealworm larvae. From article linked here are highlights & since some comparisons are specific to what can actually be eaten may interest some here.

The research is not exclusively about eating bugs; comparative data is more extensive than what summarized below. Free full text =

Table 1 shows: (a) percentage of live weight that is edible weight is higher (100%) for mealies than crickets (80%) ... (b) kg of dry matter feed required for conversion into a kg of edible bug weight has a better range (1.6 - 2.1) for mealies than for crickets (1.9 - 2.4) ... (c) energy content (calorie) per edible weight is notably higher (8.9 M.Joules/kg) in mealies than for crickets (5.9 M.Joules/kg).... (d) gross protein content per edible weight is definitely higher (205 gr./kg) in crickets than for mealies (179 gr./kg) ... (e) efficiency of feed converted into energy (calorie/joule) is greater (33%) for mealies than for crickets (19%) ... (f) efficiency of protein feed being converted is similar for mealies (50%) & crickets (49%)...

Fig.1 has 2 graphs related to a year's productive use of a square meter (land area) with minimum & maximum range bars, along with the average: (a) compares energy content ( M.Joules) per in a year & mealies average, as well as maximum potential for mealies, is higher than for crickets; although the crickets under their maximum conditions would come out better than mealies under their (mealie's) minimum productivity ... (b) compares how many grams of protein per in a year & both bugs have similar min. & max. potential...

Fig. 2 estimates how much crop land & how much pasture land usage would be involved if either of these bugs were to replace half (50%) of human nutrition (in developed nations) currently obtained from animal related products .... mealies have a very slight land requirement & (as per Table 2) would require 34% less agricultural area to replace 50% of animal products in human diet (in developed countries).

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