Effect of graded levels of dietary Bacillus toyonensis and Bifidobacterium bifidum supplementation on growth, carcass traits and ileal histomorphometry and microbiota of growing quails

Abstract

This experiment investigated the role of graded dietary levels of two probiotic strains ( Bacillus toyonensis; BT and Bifidobacterium bifidum; BB) on the growth rate, carcass traits, physiological and histological aspects of growing Japanese quail. One thousand and three hundred sixty one-day-old un-sexed Japanese quail chicks were distributed randomly into ten groups. The 1st group served as a control and fed the basal diet without supplement while the 2nd, 3rd, 4th and 5th groups received the control diet supplemented with 0.05, 0.075, 0.10 and 0.125% BT, respectively. The 6th group fed the control diet plus 0.10% BB while the remaining groups (7th to 10th) received the basal diet incorporated with the previous levels of BT rich with 0.05% BB. Dietary supplementation of BT and/or BB increased body weight and gain; however, feed intake and feed conversion were not affected. Amylase activity was significantly elevated in 5th, 7th and 9th groups, while lipase activity was improved in all treatment groups except 3rd and 6th groups. Results obtained concluded that dietary supplementation of BT with or without BB is useful for performance, digestive enzyme activities, blood cholesterols, antioxidant status and ileal histomorphometry and microbiota of growing Japanese quail.

Antioxidant and antimicrobial activities of Spirulina platensis extracts and biogenic selenium nanoparticles against selected pathogenic bacteria and fungi

“…Foodborne diseases have increased worldwide, with a noticeable public health concern ( Abd El-Hack et al, 2021 , Abd El-Hack et al, 2020c ). Besides, the development and outbreaks of antibiotic-resistance microbes threaten human and animal health and cause a global health crisis ( Abdelhady et al, 2021 , Nour et al, 2021 ). Additionally, the antioxidant defenses in biological systems are not fully able to counter oxidative stress due to the wide variety of stressors and free radical inducers ( El-Tarabily et al, 2021 ).…”

The impact of multi-species bacteria as a probiotic on productive performance and egg quality of laying Japanese quail

“…Probiotics are live organisms or Utilizing a probiotic blend of types of bacteria may have beneficial, cumulative impacts on the growth, health, and welfare of birds. For example, it can improve poultry performance and growth promoters (Yang et al, 2012;Ribeiro Jr et al, 2014;Fathi 2018); product quality (Lei et al, 2013;Youssef et al, 2013;Zhou et al, 2015;Abou-Kassem et al, 2021); nutrient digestibility (Li et al, 2014;Hossain et al, 2015); intestinal morphology, microbial aspects, and blood metabolites (Hazrati et al, 2020;Nour et al, 2021); and immune function (Liao et al, 2015). Furthermore, they have the potential to benefit the environment or minimize pollution (Zhang & Kim, 2013;.…”