A. Hasanzadeh seyedi; A. Hosseinkhani; M. Moradi
Volume 14, Issue 2 , January 2012, , Pages 31-41
Abstract
The chemical composition and digestibility characteristics of bread waste were determined and the effect of it on feedlot performance studied on 100 Sarabi steers. Dry matter, organic matter, ether extract, crude protein and NDF digestibility of bread waste were 87.2, 84.5, 76.7, 62.2 and 82.9 percent, ...
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The chemical composition and digestibility characteristics of bread waste were determined and the effect of it on feedlot performance studied on 100 Sarabi steers. Dry matter, organic matter, ether extract, crude protein and NDF digestibility of bread waste were 87.2, 84.5, 76.7, 62.2 and 82.9 percent, respectively. Degradability parameters of bread waste including a, b and c compartments were 19.5 and 74.6 percent and 0.5 percent/hour, respectively. Metabolizable energy (ME), organic matter digestibility (OMD) and short chain fatty acid (SCFA) amount calculated using gas production technique and were 9.7 MJ/kg, 51.3 percent and 1.18 ml/200 mg DM of bread waste respectively. The difference of feed conversion ratio and dressing percentage of carcass of the steers were significant (P< 0.01). The ration containing 30 percent of bread waste had the best feed conversion ratio (P< 0.01).