Formulating diets 30 organic mineral content o primary

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: neral dust • Appears as a lifeless tissue but is actually a dynamic tissue o Bone turnover (formation and resorption) o Able to repair itself Composition: Mineral highest, water the lowest • 25% water • 45% mineral content o Ca:P in a 2:1 ratio (this ratio is used in formulating diets) • 30% organic mineral content o primary component = collagen 1 Functions: • Protection o Skull protects brain, eye and ear structures o Vertebral column protects spinal cord o Rib cage protects heart and lungs o Pelvis protects vital reproduction organs • Scaffold to support cells and tissues o Give animal appearance (structure) • Acts as a lever for locomotion and work • Mineral storage (reservoir for Ca and P) o Everyday activities – Ca:  Enzyme action as a cofactor  Nerve impulse transmission  Muscle contraction o High levels of production (dairy cows, hens)  Milk – high in Ca  Egg shell – composed of CaCO3 • CaCO3 = limestone • Hen deposits 2g/day into the egg shell (1g from diet, 1g from medullary bone stores) • Blood formation due to bone marrow location in the bone Cells Associated with Bone: what they do, how they differ Osteoblasts – cells that synthesize bone • Involved in: the synthesis of the organic framework and calcification of the organic matrix o Synthesis of organic framework (support tissue):  Soft flexible matrix of organic...
View Full Document

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.

Ask a homework question - tutors are online