Beneficial effect of feeding olive pulp and <i>Aspergillus awamori</i> on productive performance, egg quality, serum/yolk cholesterol and oxidative status in laying Japanese quails

Probiotics in poultry feed: A comprehensive review

“…Probiotics have a great impact on composition and function of the gut microbiome. The proposed mechanisms of probiotics to fulfil these impacts include the competition with other micro‐organisms for nutrients, binding sites and receptors on intestinal mucosa and suppression of the growth of other microbes by producing antimicrobial agents (Abd El‐Moneim & Sabic, 2019; Abd El‐Moneim et al., 2020; Hemarajata & Versalovic, 2013). Immune modulation, organic acid production, lowering gut pH and stimulation of host defence systems are also potential mechanisms for the antagonistic activity of probiotics against pathogenic bacteria (Abd El‐Moneim et al., 2020; Sherman et al., 2009).…”

The role of polyphenols in poultry nutrition

“…Olive trees are rich in phenolic compounds with a variety of medicinal properties. Abd El‐Moneim and Sabic (2019) revealed that dietary addition of olive pulp at levels of 5% and 10% increased egg production of Japanese quails and reduced egg yolk content of total lipids and total cholesterol. Feeding growing Japanese quails on olive pulp at the same levels increases their growth performance either when irradiated or not (Abd El‐Moneim et al, 2019).…”

“…The increased awareness regarding the quality and safety of poultry products and related health properties, in addition to the prohibition of antibiotic growth promoters from the European Union markets have raised attention of producers to plant‐based feed additives as unconventional alternatives. Phytogenic feed supplements, such as spices, intact herbs and their extracts, prebiotics, probiotics, and essential oils are the conventional alternatives of antibiotic growth promoters in poultry production sector (Abd El‐Hack et al., 2019; Abd El‐Moneim & Sabic, 2019; Abdel‐Moneim et al, 2019; Abo Ghanima et al., 2020; Alagawany et al., 2018; Gado et al, 2019; Hussein, Abd El‐Hack, Mahgoub, Saadeldin, & Swelum, 2019; Kishawy, Amer, Abd El‐Hack, Saadeldin, & Swelum, 2019). Phytogenic feed additives exert their favourable effects in improving animal health and performance due to their contents of secondary metabolites, including polyphenols (Batiha et al, 2020; Hashemi & Davoodi, 2011; Yesilbag et al., 2011).…”

Growth, carcass characteristics, meat quality, and microbial aspects of growing quail fed diets enriched with two different types of probiotics (Bacillus toyonensis and Bifidobacterium bifidum)

“…The indiscriminate use of antibiotics in poultry farms increased the public health skepticism concerning the creation of resistant strains of pathogenic bacteria ( Abd El-Moneim et al., 2020 , Abd El-Moneim and Sabic, 2019 ) and residual contamination in poultry products ( Shewita and Taha, 2018 , Alagawany et al., 2019a , Soomro et al., 2019 ). The ban of antibiotic growth promoters from the markets of the European Union and many other countries challenged poultry producers to find suitable alternative solutions ( Abdelnour et al., 2019 , Alagawany et al., 2019b ).…”