lecture 1

Question 1

What are the 5 pillars of consumer demand?

Answer 1

-5 pillars of consumer demand
integrity and traceability 
enjoyment and convenience
nutritional valve 
ethical systems 
value efficiency

Question 2

List the 5 main factors that consumers look for?

Answer 2

Consumers want

• pigment
• more muscle/bine and less fat
• want tenderness, juiciness and flavour
• sat fat, minerals, vitamins

Question 3

List some lamb quality indicators

Answer 3

Lamb quality indicators

• lean meat yield; less far, bone
• larger eye muscle area (latissimuism dori)
• tenderness
• retail colour which is determined by pH and glycogen amount
• Omega 3 fat content
• consumers quality standards

Question 4

What is GR

Answer 4

GR; girth reap, tells you how deep and thick, tells you how much fat is around this area
scale 1-5

Question 5

List the different ways the measure the quality of the lamb (6)

Answer 5

Lamb quality measurement

• carcass dissection and sensory panel
• video image and ultrasonic scanning (look @ deepness of fat)
• tenderometer and shear force
• colour, pH and temp.
• near-infra red
• computer tomography

Question 6

Explain the determination of fat melting point

Answer 6

determination of fat melting point;
if lots of sat fat, the fat remains solid this is for the melting point
low fat melting point have low sat fat
high melting point have high sat fat

Question 7

What does adding canola oil do?

Answer 7

adding canola oil can influence size of adipose, heart, kidney and liver tissues and decreases the melting point of fat for the visceral and sc fat

Question 8

Discuss the effect of spirulina on the meat quality

Answer 8

spirulina supplementation @ 10% produces a leaner, healthier meats with little impact on overall eating
it enhances liver and other tissues

Question 9

For the following organs discuss the effects on FA

• heart and muscle
• Liver

Answer 9

heart and muscle; no sire breed or sex effect on FA

liver; FA varied with sire breed and sex

Question 10

For NIR why isn’t it actuate

and discuss how good ultrasound and CT is for measuring lamb quality measurement

Answer 10

NIR; fat disruption is not equal and therefore its to actuate
-ultrasound is good but CT is better