Abstract
ABSTRACT Poultry rations are composed mainly of conventional cereal grains and proteins. Using non-conventional agro-industrial by-products may reduce the cost of production and thereby improve productivity. A study was conducted to evaluate the effect of dietary brewery spent grain inclusion on egg laying performance, quality parameters of bovans brown and profitability of the rations. A total of 200 pullets with similar body weight and age were randomly distributed to five treatments with four replications. The treatments were brewery spent grain (BSG) inclusion of 0, 10, 20, 30 and 40% levels for T1, T2, T3, T4 and T5, respectively. The CP and ME contents of treatment rations were 16.54-17.04% and 2871-2903 kcal/kg DM, respectively. Inclusion of the BSG in the layers ration did not affect dry matter intake, feed conversion efficiency and hen-day egg production (58.79, 57, 56.11, 55.11 and 54.13% (SEM=0.92)). Likewise, the inclusion of the BSG in the diets did not affect (albumen, yolk, shell) quality. However, feed cost decreased with the increasing level of the BSG in the rations because of its lower purchasing price. To conclude, a 40% inclusion of BSG in the diet of layers does not affect the production and the quality of the eggs and it can be economically profitable.
Highlights
In Ethiopia, poultry production is popular in urban (66%) and rural (53%) areas (Birol et al, 2010)
The result, as illustrated in, showed brewery spent grain (BSG) has a lower crude protein (CP) content by 5.39% but a higher metabolizable energy (ME) level by 2.25% compared to noug seed cake (NSC)
The BSG used in this study has a dry matter (DM)=92.80%, CP=28.10%, Ether extract (EE)=4.35%, crude fiber (CF)=14.30% Ash=4.25% and ME=2745.83 kcal/kg
Summary
In Ethiopia, poultry production is popular in urban (66%) and rural (53%) areas (Birol et al, 2010). ; the economic contribution of the sector is still not proportional to the huge numbers of chicken; for instance the estimate of egg and poultry meat production is about 40,000 and 60,480 ton respectively (Faostat, 2013). This is due to the presence of many technical, organizational and institutional constraints (Fisseha et al, 2010). Utilization of alternative feed resources in poultry ration is a best option for successful poultry production (Zewdu & Berhan, 2014) These alternative feed ingredients can be the non-conventional feed sources like brewery spent grains. The by-product varies nutritionally from plant to plant and depending upon the type of substrate (barley, wheat, corn, etc.), extent of fermentation and type of fermentative process
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
