Cannot consume enough feed to meet the demands of

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Unformatted text preview: – for yellow marrow Bone Remodelling: turnover of bone structure • Bone is a dynamic tissue o Continuous turnover – resorption and reformation • A combination of osteoblastic and osteoclastic activities o Bone formed (on outside of the bone) o Bone removed (on the inside of the bone)  Action of organic acids and enzymes of osteoclasts • Required to change shape and size o No effect on shape of long bones • If stress is placed on bones: e.g. o Decrease in muscle mass: decrease bone mass  Decreases motility o Increase in muscle mass: increase bone mass • Bone is a mineral reservoir for Calcium o Constant depletion and replenishment depending on need of the animal  Continuous exchange of Ca between body fluids and 1% of total bone matrix • Blood ca changes – bone breakdown and buildup • Hypocalcemia: When s...
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This note was uploaded on 06/29/2013 for the course ANSC 2340 taught by Professor Iramandell during the Winter '12 term at University of Guelph.

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