ANSC 4270 Study Guide - Final Guide: Silage, Angus Cattle, Dairy Cattle

• School: University of Guelph
• Department: Animal Science
• Course: ANSC 4270
• Professor: Ira Mandell

Document Summary

Bulky feeds: effect on gut fill an dmi: If the feed is long and not very digestible it will stay in the rumen longer. High fibre, low energy: not fed to non-ruminants, other than horses. High is structural cho cell wall cho. >18% crude fibre (35 to 87% ndf) <70% tdn (wide range in energy values) Grasses such as brome, timothy, orchard grass. Forbs: broadleaf, nonwoody plants more for wild ruminants. Browse: woody plants (twigs, leaves, young shoots) consumed by selective grazers (choose most nutritious part of the plant) Corn is the ideal energy source since it has such a high tdn. Corn silage is a combination of grain plus rest of plant, hence why it has a lower tdn. Corn is lower in protein compared to many forages and roughages. Corn has high cc and high energy. High ndf = low energy, more of what you get from forages, also have low cc.