Protien Synthesis And Nitrogen Metabolism

Question 1

Where do the ruminant intestines receive amino acids from there are two sources?

Answer 1

1.amino acids contained in dietary proteins that are not degraded to peptide and ammonia by room and microbes. Described as escape or bypass proteins (Ruben undergrad protein or RUP)

Two. Micro protein this is the protein that has been synthesise by microbes in the room and (primarily bacteria) either amino acids that come from the diet or amino acids released from dietary protein during its degradation or (this is key) from non-protein nitrogen sources in the diet and saliva .

Question 2

What are the three options to overcome protein deficiency in cattle?

Answer 2

1.make the room and operate as efficiently as possible. This will maximise the intake of available feed so the dietary protein and energy intake are maximised therefore maximise the micro protein synthesis.

2.provide additional bypass protein to flow directly into the intestine for absorption

3.supplying RDN to cattle grazing in dry season pasture with an abundant of dry matter but deficient in nitrogen increases protein supply to the animal (Ruman degradable nitrogen)

Question 3

What is RDN

Answer 3

Rumen degradable nitrogen

Question 4

What is RDP?

Answer 4

Roman degradable protein

Question 5

What is NPN?

Answer 5

Non-protein nitrogen

Question 6

What is RUP and briefly describe?

Answer 6

Roman undergradable protein or bypass protein. This protein is not degraded in the rumen that flows into the Abomasen

Question 7

What is the twofold mechanism by which NPN increases ruminate performance?

Answer 7

1.NPN promotes proliferation of Roman biota, greater microbial populations in the room and breakdown more fibre in the feed thus releasing more energy from the diet. Important as grass has increasing levels of NDF which decreases the overall metabolised energy.

2.the larger Microb population is increased by the supply of protein and essential acids to the hindgut. Microbes die and get washed out of the room and becoming part of the protein nutrition.

Question 8

What two things happen when you provide additional RDN on low protein roughage?

Answer 8

One.increase the rate and total digestibility of the roughage dry so that animal gets more protein

2.the room and empties quicker so the brain triggers an increase in intake therefore more kilos of feed/protein eaten