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Livestock productions
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Animal growth
Increase in body size weight and tissue development
Sigmoid curve
S shaped growth curve with lag exponential and plateau phases
Tissue growth order
Bone then muscle then fat
Feed efficiency
Growth produced per unit of feed intake
Early maturing animals
Deposit fat earlier and have smaller mature size
Late maturing animals
Grow muscle longer and deposit fat later
Growth factors
Genetics nutrition environment and hormones
Carcass composition
Muscle fat and bone proportions
Fat effect on meat
Improves flavour tenderness and juiciness
Plateau phase
Stage where growth slows as maturity is reached