Technical and economic potentials of the unconventional extruded dried Arabic bread wastes in broilers diets

Abstract

Food waste is one of the major global challenges that have adverse socioeconomic and environmental impacts. Therefore, studying food waste utilization potentials and minimizing its negative consequences becomes imperative. This study aims to assess the technical and economic potentials of substituting corn with unconventional extruded dried Arabic Bread waste (EDABW) in broilers’ diets, in terms of broilers’ performance, carcass characteristic, economic net returns, and income over feed cost (IOFC). One hundred eighty unsexed one-day-old broiler birds of Ross breed were distributed randomly in six treatments (0, 20, 40, 60, 80, and 100% EDABW group) of isocaloric and isonitrogenous diets in a completely randomized design with six replicated (5 chicks/replicate). The investigated traits were broilers’ performance (live body weight, total feed intake, total feed conversion ratio, and total weight gain. Other traits such as carcass weight, abdominal fat, edible offal (liver, heart, and gizzard), eviscerated (breast muscles, drum and thigh muscles, and wings) were weighed and expressed based on a live body weight. Results showed that the 20% replacement level of corn with EDABW generated the highest increase in the live body weight and the eviscerated carcass at about 4.24% g and 4.90%, respectively. On the other hand, the economic analysis showed potential reductions in the broilers’ diet cost and the total broilers' production cost as the levels of corn substitution with by unconventional EDABW increased. The reductions were estimated at 5.1%, 6.3%, 8.4%, 9.3%, and 9.9% at substitution levels of 20%, 40%, 60%, 80%, and 100%, respectively as compared to the control diet. The results also showed a potential increase in the net economic returns of broiler meat as the increase in substitution levels ranged between 3.5–06.8% and 4.3–8.3% as compared to the control diets using the average retail and wholesale prices of broiler meats, respectively. In addition, the maximum IOFC was estimated potentially at a 20% substitution level of corn with EDABW. Conclusively, the study results show promising technical and economic potentials for unconventional EDABW in broilers’ diets that could lead to a thriving industry of unconventional broilers’ diets with high net economic returns and maximum IOFC.

Scrutinization of Dried Bakery Waste as Maize Substitute in Quail Ration by Evaluating the Growth and Nutrient Utilization

“…Scrutinization of Dried Bakery Waste as Maize Substitute in Quail Ration by Evaluating the Growth and Nutrient Utilization onwards; suggesting that raising meat quail birds after five weeks of age is uneconomical. Our results corroborates with the findings of different prior researchers who too reported similar findings in their respective studies (Edache et al, 2017;Epao et al, 2017;Al-Sagan et al, 2021;Lukanov et al, 2021). However, some authors reported results contradictory to that of the present study (Oke, 2013;Ayanrinde et al, 2014;Chauhan, 2021).…”

“…in BaW meal-fed treatment groups, it resulted in the comparable cost of starter feed, finisher feed as well as the total cost of feed. Noticeable reduction in the cost of total feed in broiler birds on increasing the levels of BaW inclusion as maize replacer was reported earlier by some researchers (Al-Ruqaie et al, 2011;Al-Sagan et al, 2021). Similar to our study, some authors reported a non-significant difference in the feed cost reduction per bird while using BaW as a maize replacer (Oke, 2013;Epao et al, 2017;Chauhan, 2021).…”

“…The results of the current trial revealed no effect of maize replacement with BaW on weekly FI and showed no substantial difference throughout the experimental trial (Table 3). These results showed similarity with the findings of previous researchers who substituted maize flakes with different inclusion levels of BaW either in quails Edache et al, (2017); Lukanov et al, (2021) or in other poultry birds (Epao et al, 2017;Al-Sagan et al, 2021). But opposite to our results, some authors reported an increase Madiya et al (2005); Shittu et al (2016) while others reported a decrease (Oke, 2013) in weekly FI after inclusion of BaW at different levels.…”

“…The weekly BW, as well as BW G, did not show any inclement effect of BaW inclusion at different levels as maize replacers (Table 4 and 5). As reported in our study, nonsignificant findings have been reported earlier also by many authors (Epao et al, 2017;Al-Sagan et al, 2021;Chauhan, 2021). However, significant differences in BW and BW G were observed by some researchers on using BaW as a maize replacer at varying levels (Oke, 2013;Shittu et al, 2016).…”

Demonstration of an Integrated Methodology for the Sustainable Valorisation of Bakery Former Food Products as a Pig Feed Ingredient: A Circular Bioeconomy Paradigm

“…According to the latter, the differences in the chemical composition of BM from 46 different regions of the USA are relatively small and are unlikely to have a major impact on their nutritional value. Previous reports have demonstrated that dietary BM can safely replace up to 50% of maize (when the main ingredients of the diet are maize and soya) in the diet of growing pigs and sows without any adverse effect on their health, yield, and carcass quality [28][29][30][31][32][33][34], while the integration of bakery by-products into animal feeds has also drawn attention in broiler and cow systems, demonstrating promising results [35][36][37].…”