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15 Cards in this Set
- Front
- Back
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Silage:
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stored fermented forage
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What do we eat that is similar to silage?
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sauerkraut
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Silage Making
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1.Cut down the crop you wish to use
2.Pick it up from the field and at desired location 3.Pack/press all air out of it, wrap with plastic and cover with tires to hold plastic |
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Silage is stored how?
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In bags with no oxygen once fermented for years!
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Sugars are fermented into _____, _______, _______, and _______ acids by anaerobic microorganisms.
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lactic, acetic, propionic and butyric
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The formation of the acids _________ (target= _ b/c at this pt all microorganisms die)
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reduces pH; 4
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Low pH “pickles” product preventing _______________________ that cause aerobic degradation
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growth of yeast and molds
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Protein is degraded into ______ and ___ (target is _____ of ammonia per __ N)
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ammonia; NPN; <100g; kg
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Zooplankton:
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animals that feed on phytoplankton; IE: krill (shrimp like marine invertebrates)
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What is the importance of zooplankton stool?
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It is a heavy pellet that sinks deep to the bottom, providing a photosynthetically carbon source for deep ocean organisms
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Zooplankton practice what type of migration? Why is that important?
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Practice vertical migration: they migrate to the deep at dawn and to the top at dusk (larger creatures eat them all along their migration)
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Deep sea creatures:
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viper fish, fangtooth, dragon fish, tubeworm
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Marine food chain:
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phytoplankton-> zooplankton-> small fish-> bigger fish-> mammals
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What does the suffix “plankton” mean?
* greek “plankos”, to wander |
* greek “plankos”, to wander; b/c not big enough to fight surrent, so they wander whereever the current takes them
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Why do most fish kills occur during summer?
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1.warm water holds less DO (dissolved oxygen)
2.in warm water the O2 demand by fish is greater 3. in warm water algea grow more rapidly |
