Figure 4From: Long-term maintenance of in vitro cultured honeybee (Apis mellifera) embryonic cellsEstimation of proliferation. Proliferation was estimated, based on cell counts over 28 days, in cell cultures initiated from 15 embryos, 32–36 h.a.o. and 36–40 h.a.o.. Cell cultures initiated from embryos 36–40 h.a.o. showed higher proliferation than the cultures initiated from embryos 32–36 h.a.o.Back to article page