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. 2021 Sep 20;8:689746. doi: 10.3389/fnut.2021.689746

Table 2.

The single larvae weight, feed consumption, and percentage of crude protein for the different development stages of Tenebrio molitor.

Stages of development
Amount Larvae instars
3–4 5–6 7–8 9–10 11–12 13 Pupa Adult
Single larvae weight (mg) 2.1 ± 0.1f 12.7 ± 1.1e 34.8 ± 4.5d 72.7 ± 6.5b 98.0 ± 11.6a 114 ± 10.9a 73.0 ± 5.5b 46.5 ± 4.1c
Crude protein weight (mg) 1.24 ± 0.1f 7.37 ± 0.4e 20.2 ± 1.8d 40.4 ± 5.2b 48.0 ± 4.4ab 55.3 ± 2.9a 33.0 ± 1.9c 18.4 ± 1.2d
Crude protein proportion (%) 59.19 58.05 58.08 55.53 49.02 48.6 45.15 39.59
Single larvae feed consumption (mg) 17.3 ± 1.1f 36.3 ± 2.1e 88.7 ± 0.7d 200.7 ± 5.2c 214.0 ± 7.9b 236.67 ± 9.7a
Feed consume proportion (%) 2.18 4.58 11.17 25.28 26.96 29.82
Feed assimilability (%) 61.26 60.83 42.74 12.61 7.48 –17.32
Feed–protein conversion rate (%) 35.43 35.31 22.78 3.79 3.41 –9.42

Data are presented as the mean ± SD. Means with different superscripts in column differ significantly (p ≤ 0.05). n = 3.