Abstract
Abstract Two experiments were carried out to evaluate the nutritional composition and effect of different levels of inclusion of wafer-type biscuit waste (WW) in the diet of European quail on production performance, carcass yield and economic viability. In the metabolizability trial, WW showed 87.45% DM, 4,128.53 kcal/kg GE, 3,833.14 kcal/kg AME, 3,818.92 kcal/kg AMEn, 9.37% CP and 17% EE. The metabolizability coefficients of DM, GE, EE and CP were 93.20, 92.85, 93.01 and 47.16%, respectively. In the performance trial, feed intake decreased linearly (P<0.05) from 22 to 42 and from one to 42 days of age. Weight gain and feed conversion were not influenced (P>0.05) by WW inclusion. The WW inclusion levels did not influence (P>0.05) carcass yield. The diet with 20% inclusion of WW provided the best financial return. Wafer-type biscuit waste can be included up to the level of 20% in quail diets without compromising production performance, carcass yield or the economic viability of the activity.
Highlights
Poultry farming is considered a segment of great importance in the production of highprotein foods, where producers are always seeking to adapt to the new techniques to improve animal production efficiency[1,2]
The chemical composition of wafer-type biscuit waste (WW) was determined by analyzing the dry matter (DM), crude protein (CP), ether extract (EE), mineral matter (MM) and gross energy contents (GE), following the methodology proposed by Silva & Queiroz[17]
Economic viability was determined as a function of changes in live weight, feed intake and diet costs, which depended on the waste inclusion levels, in accordance with the methodology described by Lana[4]
Summary
Poultry farming is considered a segment of great importance in the production of highprotein foods, where producers are always seeking to adapt to the new techniques to improve animal production efficiency[1,2]. Energy composition and the metabolizability of wafer-type biscuit waste as well as examine the effect of its inclusion in meat-quail diets on production performance, carcass characteristics and economic viability in the period of one to 42 days of age.
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