Growth and response to Escherichia coli lipopolysaccharide challenge in Lohmann LSL-Lite pullets when fed a source of omega-3 fatty acids and yeast bioactives from hatch through to 16 wk of age

Feeding a Novel Mannan-Rich Yeast Carbohydrate Product Improves Production Performance and Humoral Immunity of Broiler Chickens

“…Other beneficial effects of yeast mannan products, such as enhancing gastrointestinal (GIT) mucosa structure development, increasing nutrient digestibility, and reducing the impacts of E. coli LPS and Salmonella enteritidis colonization have been reported [ 21 , 22 , 25 , 29 , 32 , 39 , 40 ] but were not determined in the current study. In future studies, the effects of dietary supplementation of YM on broiler chicken GIT development, nutrient digestibility, and GIT microbiota compositions will be determined to provide a more comprehensive assessment of the benefits of this novel mannan-rich yeast carbohydrate product on broiler chickens.…”

“…The concept of increasing the water solubility of yeast cell wall components through enzymatic lysis has long been proposed [ 26 ]. Recent studies demonstrated that dietary supplementation of enzyme-modified yeast carbohydrate products provided a wide range of beneficial effects in poultry, such as promoting intestinal mucosa structure development, mitigating the adverse effects of pathogens, and enhancing innate and humoral immune responses, as well as improving performance [ 8 , 17 , 27 , 28 , 29 , 30 , 31 ]. Water solubility is considered a critical parameter for yeast carbohydrates to exhibit the aforementioned beneficial effects [ 2 ].…”

Response of broiler breeder pullets when fed hydrolyzed whole yeast from placement to 22 wk of age

“…However, much of the studies in poultry have focused on production phases (e.g., broiler chickens or laying hens), and limited studies have been completed in breeder pullets before sexual maturity. Lee et al (2023) reported that yeast bioactives affected body weight at sexual maturity and the development of lymphoid organs. It also modulated some plasma metabolites in response to the E. coli liposaccharide challenge, extending previous observations that yeast metabolites modulated immune function in poultry ( Alizadeh et al, 2016 ; Maina et al, 2022 ; Lee et al, 2023 ; Lin et al, 2023 ).…”

“… Lee et al (2023) reported that yeast bioactives affected body weight at sexual maturity and the development of lymphoid organs. It also modulated some plasma metabolites in response to the E. coli liposaccharide challenge, extending previous observations that yeast metabolites modulated immune function in poultry ( Alizadeh et al, 2016 ; Maina et al, 2022 ; Lee et al, 2023 ; Lin et al, 2023 ). Antibody titers against infectious bronchitis and Newcastle diseases ( ND ) are essential indicators of immune function in poultry health management after vaccination ( Talebi et al, 2015 ; Oberländer et al, 2020 ; Akbari Moghaddam Kakhki et al, 2021 ; Mao et al, 2022 ).…”