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Flashcards in Chapter 5 Ruminant Nutrition in Thailand Deck (15)
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1

Ruminant vs. Non ruminant

I know

2

First Stomach

Rumen:
1. Microbes fermentation
2. Rumerous papilae for increasing surface area
3. Process the fiber by microbes help

3

Second Stomach

Helping rumen activity to re-fermen process (fermentation)

4

Third Stomach

Has many plies
Function for drying the feed
Microbes activity

5

Last and True Stomach

-Re-digest everything
-Digest Protein through the help of bacteria
-Nutrients hydrolysis
-Strong acid condition killing the microbes

6

Rumination

1. Eating grass by pulling it, then swallow and no chewing process
2. go to rumen
3. go to reticulum
4. go back to the mouth for rechewing and pH control
5. Reswallow

7

Eructation

?

8

Feeding the Bugs, Feeding the Cow

If microbes happy, ruminant will healthy.
The main process of microbes (bacteria, fungus, protozoa) eating in rumen and reticulum

9

Rumen Ecology

1. top part of rumen is gas area (NH4 and CO2, green house gases)
2. The longer feed stalk is floating in hmthe upper surface of liquid part in rumen
3. the smaller feed part will be under the longer part
4. The contraction always happen in rumen, moving up the feed into reticulum
5. pH 6.5-7.0
6. Temperature 39°C
7. Digestion process in aerobics condition

10

Small Intestine

Digestion and re-absorb nutrients

11

Volatile Fatty Acids

Fermentation output

3 kinds:
C2 Acetate
C3 Propionate
C4 Butyrate

12

Gas Product

Methane (CH4)
CO2

13

Bloat

Gas over accumulated in the rumen (left side first stomach), causing death for ruminant

14

Trocar

Manual treatment for bloat phenomenon, by sticking the trocar to the left stomach

15

Ruminant Stomach Comparison

Baby: abomasum 60%, rumen 25% due to the lack of microbes and their main food is milk, going directly from esophagus to abomasum

After weaning: Rumen 80% and abomasum 7%, because the main food is green