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ANSC3101 - Nutrition Final > Animal Nutrition Trials > Flashcards

Flashcards in Animal Nutrition Trials Deck (10)
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1
Q

What is the active ingredient in cinnamon?

A

Cinnamaldehyde

2
Q

The main goal of the cinnamaldehyde trial was to?

A

Market lambs for flavour meat without antibiotics. Can plant extracts replace ionophores in lamb diets –> to promote animal growth

3
Q

What are ionophores?

A

A lipid-soluble molecule usually synthesised by microorganisms to transport ions across the lipid bilayer of the cell membrane

4
Q

What were ionophores used for in beef and dairy cattle industries?

A

To prevent acidosis/bloat and liver abscesses. And increase level of propionic acid.

5
Q

What is monensin isolated from?

A

Streptomyces cinnamonensis

6
Q

What action does monensin have on the body?

A

It blocks intracellular protein transport and exhibits antibiotic/antimalarial properties. Antibiotic properties: their ability to transport monovalent and divalent metal cations through cellular and subcellular membrane. Ruminants: 28-33ppm

7
Q

What was the trial design for the cinnamaldehyde trial?

A

4 different groups a ‘block design’.

The only variable is the amount of cinnamaldehyde fed. (0% in diet, 0.01%, 0.02% and 0.04% CDH/lamb/day

8
Q

What is “feed conversion efficiency”?

A

How much feed (Kg) is necessary to conver to 1kg of liveweight. Divide intake by gain.

9
Q

What is the conclusion of cinnamadehyde trial?

A

No effects of cinnamaldehyde on animal performance, or rumen fermentation.

Decreased overall off flavour intensity.

10
Q

What are the conclusions drawn from the trial where lambs were fed juniperberry and cinnamaldehyde?

A

Ewe lambs fed cinnamaldehyde and juniperberry had higher ADG but neither difference on SMY nor final LW.

Minor changes on meat characteristics