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A bioactive terrarium (or vivarium) is a terrarium for housing one or more terrestrial animal species that includes live plants and populations of small invertebrates and microorganisms to consume and break down the waste products of the primary species.
Fermented anaerobically (more precisely, microaerobically) [5] for a few weeks at typical room temperatures in an airtight vessel, the organic matter is preserved by the acid, in a process closely related to the making of some fermented foods and silage. The preserve is normally applied to soil when ready, or can be stored unopened for later use.
In biology, a substrate is the surface on which an organism (such as a plant, fungus, or animal) lives.A substrate can include biotic or abiotic materials and animals. For example, encrusting algae that lives on a rock (its substrate) can be itself a substrate for an animal that lives on top of the algae.
Substrate is also useful for burrowing species as they can dig into the substrate as they would in their natural habitat. It is also useful for egg laying species that would naturally bury their eggs in the earth floor. The substrate also adds to the aesthetics of the enclosure and gives the vivarium a more natural feel and look. [1]
A bioactive compound is a compound that has an effect on a living organism, tissue or cell, usually demonstrated by basic research in vitro or in vivo in the laboratory. While dietary nutrients are essential to life, bioactive compounds have not been proved to be essential – as the body can function without them – or because their actions are obscured by nutrients fulfilling the function.
All laboratories using vertebrate lab animals in the United States are required by law to have a licensed veterinarian on staff and to adhere to the NIH Guide for the Use and Care of Laboratory Animals, which further stipulates that all protocols, including the sources for obtaining the animals, must be reviewed by an independent committee.
Nitrogen fixed by crusts has been shown to leak into surrounding substrate and can be taken up by plants, bacteria, and fungi. Nitrogen fixation has been recorded at rates of 0.7–100 kg/ha per year, from hot deserts in Australia to cold deserts. [11] Estimates of total biological nitrogen fixation are ~ 49 Tg/year (27–99 Tg/year). [10]
Mycelium-based composites require a fungus and substrate. “Mycelium” is a term referring to the network of branching fibers, called hyphae, that are created by a fungus to grow and feed. When introduced to a substrate, the fungi will penetrate using their mycelium network, which then breaks down the substrate into basic nutrients for the fungi.