Compensatory Growth

Question 1

Manipulating Body Composition

Answer 1

usually manipulated by nutrition and cross breeding:
- restricted nutrition reduces fatness at increased body size
- crossbreds have less waste fat than pure bred parents and more marbling

Question 2

Compensatory growth

Answer 2

After a period of growth restriction due to nutritional insufficiency, upon the restoration of nutritional sufficiency, animal growth rate will accelerate and exceed that of animals fed well continuously

Question 3

Key points for implementing compensatory growth

Answer 3

• Age of the Animal
• Severity of Nutrition
• Feed cost and availability

Question 4

Animal Factors affecting compensatory growth

Answer 4

• degree of maturity
• adipose depots
• gender
• metabolic rate ranges
• genotype
• early maturing have greater propensity for CG response

Question 5

Nutritional factors affecting compensatory growth

Answer 5

• duration of feed restriction
• nutrient density during food compensation
• food intake during re-alimentation

Question 6

Metabolic adaptation with feed restriction

Answer 6

Increase:
- plasma growth hormone (GH)
- extent of digestion of feed

Decrease:
- feed passage rate
- heart rate
- IGF-1
- plasma glucose
- blood urea nitrogen
- plasma glucose
- plasma non-esterified
- triiodothyroxine
- insulin
- thyroxine

Question 7

Compensatory growth - pigs

Answer 7

No effect on meat tenderness
length of CG influence protein turnover hence postmortem proteolysis
CG increase protein turnover thereby proteolytic potentially