Abstract
The objective of this study was to determine energy, methionine, lysine, and protein availability of solids concentrated from brewery process effluent through the Carver-Greenfield process. Analysis of these concentrated solids revealed 30% protein and 23% fat content. A biological evaluation was implemented to determine the availability of energy and protein to poults and to determine possible existence of unidentified growth factors. Sixteen diets were fed to 560 male poults. Five replicate groups of 7 birds each were housed in electrically heated Jamesway batteries.The study utilized Large White male turkeys, fed 0 to 20% levels of the test product (labeled CVS) covering a period from 1 day to 4 weeks of age. The energy value of CVS for poults appeared similar to the TME score of 3.02 kcal/g. Protein utilization was best when CVS was fed at 5% of the diet, and was equal to that of dehulled soybean meal. Five percent CVS substituted for one unidentified growth factor (UGF) source and appeared to have an additive effect with another UGF source. On two treatments, bird body weights averaged nearly 1000 g each at 4 weeks.It was concluded that CVS at up to 10% of the diet performed adequately as a product to provide usable protein and energy for early poult growth.
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