Aerobic and anaerobic respiration Flashcards
What are the majority of the energy available to ruminants
Volatile fatty acids
What are the major players of the microbial ecosystem?
The criminal microbial ecosystem is comprised of bacteria along with archaea,bacteriophages ,protozoa , fungi and each contributes to the symbiotic relationship between the microbial ecosystem and the host of the animal that is essential for optimal animal health and efficient animal production
Pyruvate is the end of glycolysis, what does it produce?
Lactate
In the ruminant and VFA production, what produces the most energy?
Acetate produces the most energy
Propionate only about 20% but it produces what but only once appropriate gets into the metabolism. It can be converted into what.
Glucose
Glucose in the rumen is rapidly eaten by the microbes some important cells such as the brain only use glucose as an energy source so how does the ruminant get glucose when the microbes are eating?
They get some from the microbio efforts via the microbial excretions of propionate as it goes across the room and wall and ruminants can reconvert this back into glucose and it is released into the blood to run to the brain and the central nervous system
There are two pathways for propionate production. What are they?
ACRYLATE pathway
Randomising or succinate pathway
How do methanogens get energy?
Rely on interspecies hydrogen transfer
BIOFILM ecology is pivotal for interspecies hydrogen transfer
New interest in feeding methanogens electrons via electricity to produce biogas
Briefly describe Rumen biofilms
Multi species layers build up over a new fermentation site, one layer can live off the products of the layer beneath (cross feeding)
What is produced in anaerobic situations name all three things?
Lactic acid, ethanol, VFA regenerate in NAD plus
In the rumen and what are the end products of fermentation?
Acetate, appropriate, butyrate, plus CO2 and cells)
What is cross feeding?
Cross feeding is an important process where one microbes waste is another substrate
Interspecies hydrogen transfer is a specific form of cross feeding The under pins what production?
Maytime production in the room where CO2 is the final electronic acceptor