Food Industry Byproducts as Starting Material for Innovative, Green Feed Formulation: A Sustainable Alternative for Poultry Feeding

Abstract

Rising global populations and enhanced standards of living in so-called developing countries have led to an increased demand of food, in particular meat, worldwide. While increasing the production of broiler meat could be a potential solution to this problem, broiler meat is plagued by health concerns, such as the development of antimicrobial resistance and lower meat quality. For this reason, the supplementation of poultry feed with vitamins and antioxidant compounds, such as polyphenols, has become an attractive prospect for research in this sector. Such supplements could be obtained by extraction of agricultural byproducts (in particular, grape pomaces and artichoke leaves and bracts), thus contributing to reductions in the total amount of waste biomass produced by the agricultural industry. In this review, the effects of poultry feed supplementation with bioactive extracts from grape pomace (skins and/or seeds), as well as extracts from artichoke leaves and bracts, were explored. Moreover, the various methods that have been employed to obtain extracts from these and other agricultural byproducts were listed and described, with a particular focus on novel, eco-friendly extraction methods (using, for example, innovative and biocompatible solvents like Deep Eutectic Solvents (DESs)) that could reduce the costs and energy consumption of these procedures, with similar or higher yields compared to standard methods.

Suitability of dried olive pulp in slow-growing broilers: performance, meat quality, oxidation products, and intestinal mucosa features

“…To date, the use of agroindustrial by-products in animal nutrition has been successfully assumed as a key-strategy to reduce feeding costs and to cope with the need to recycle waste material, which is costly to dispose of ( Vasta et al, 2008 ; Brunetti et al, 2022 ; Vastolo et al, 2022 ). The olive ( Olea europaea ) and olive oil industries play significant economic and social role in many countries (International Olive Council, 2017 ) that generates wastes such as olive pomace, pulp, and leaves.…”

Utilization of Agro-Industrial By-Products for Sustainable Poultry Production

“…Furthermore, greenhouse gas emissions are forecast to rise at an average rate of 2-6% annually until 2030 [2]. At the same time, global hunger is exacerbated by the COVID-19 pandemic [3] and by conflicts in Eastern Europe in 2022 [4], which increased inflation and made healthy diets less affordable [3].…”

Aloe vera: A Sustainable Green Alternative to Exclude Antibiotics in Modern Poultry Production

“…By breaking down carbohydrates and fats, bio-catalysts like lipase and amylase found in plants can aid in digestion [64,73,97]. However, it should be noted that, while investigating the effects of herbal supplements in broiler feed on performance, various factors, including plant parts, physical characteristics, genetic variation, age, various dosages used, extraction method, harvest time, and compatibility with other ingredients, can have a different impact on performance [103,104]. In addition to plants and their extracts, researchers also focused on the polysaccharides found in herbs.…”