Swine manure vermicomposting via housefly larvae (Musca domestica): The dynamics of biochemical and microbial features

► The greenhouse-assisted larvae vermireactor acted the key of manure reduction. ► The seven-day vermireactor resulted in a total mass reduction rate of 106 ± 17 kg/(m3 d). ► Activities of microbes and extracellular enzymes were lower in vermicompost. ► The microbial diversity in vermicompost was lower than the raw fresh manure. ► Organic C may be a key indicator of the bio-processes of larvae vermireactor.