GROWTH DEV FARM ANIM
GROWTH DEV FARM ANIM ANS 3043
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This 1 page Class Notes was uploaded by Laury Kreiger on Friday September 18, 2015. The Class Notes belongs to ANS 3043 at University of Florida taught by Staff in Fall. Since its upload, it has received 28 views. For similar materials see /class/206674/ans-3043-university-of-florida in Animal Science at University of Florida.
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Date Created: 09/18/15
Notes 5 Growth Curves 1 Growth Curves a Sigmoid Growth curves A shaped like an B cumulative curveanimal weight is expressed as total weight at any give time C shape is actually steplike due growth spurts driven by nutrition D shape differs among species breeds gender plane of nutrition and when growth occurs for that given animal b Described by different phases during pre and postnatal growth A Conception to birth B Selfaccelerating phase C Selfinhibiting retarding phase D Point of in ection c Alternative means of segmenting the growth curve A Phase 1 B Phase 2 C Phase 3 D Phase 4 Be sure to understand the different phases and the graphs that go with them 4 77 S 11 Age and Maturity a Chronological Age age in absolute time units days months years A animals within a species breed or gender do not grow develop or fatten at the same rate or mature at the same chronological age b Physiological age defined by specific physical physiological or compositional stage of development for function that an animal has reac e A physiological maturity point in time when an animal reaches its highest level of complexity or development B sexual maturity point in time when an animal is capable of reproducing puberty III Calculations a Average Daily GainY2Ylt2tl A represents growth as a linear function but this is not the true growth rate of the animal because the growth rate changes as the animal grows This is only accurate over a short time interval b Average Relative Growth Rateloth2lothlt2tl A use in relative growth curve IV Relative Growth Curves a shows growth in relation to total weight b as animal continues to grow relative growth rate decreases
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