scholarly journals Effect of dietary bacteriophage supplementation on internal organs, fecal excretion, and ileal immune response in laying hens challenged by Salmonella Enteritidis

2017 ◽  
Vol 96 (9) ◽  
pp. 3264-3271 ◽  
Author(s):  
P.A. Adhikari ◽  
D.E. Cosby ◽  
N.A. Cox ◽  
J.H. Lee ◽  
W.K. Kim
Keyword(s):  
Immune Response ◽  
Salmonella Enteritidis ◽  
Laying Hens ◽  
Fecal Excretion ◽  
Internal Organs

scholarly journals Colonization of internal organs by Salmonella Enteritidis in experimentally infected laying hens housed in enriched colony cages at different stocking densities

2016 ◽  
Vol 95 (6) ◽  
pp. 1363-1369 ◽  
Author(s):  
Richard K. Gast ◽  
Rupa Guraya ◽  
Deana R. Jones ◽  
Kenneth E. Anderson ◽  
Darrin M. Karcher
Keyword(s):  
Salmonella Enteritidis ◽  
Laying Hens ◽  
Internal Organs

scholarly journals Colonization of internal organs by Salmonella Enteritidis in experimentally infected laying hens housed in conventional or enriched cages

2013 ◽  
Vol 92 (2) ◽  
pp. 468-473 ◽  
Author(s):  
Richard K. Gast ◽  
Rupa Guraya ◽  
Deana R. Jones ◽  
Kenneth E. Anderson
Keyword(s):  
Salmonella Enteritidis ◽  
Laying Hens ◽  
Internal Organs

scholarly journals Effect of the housing system on shedding and colonization of gut and internal organs of laying hens with Salmonella Enteritidis

2009 ◽  
Vol 88 (12) ◽  
pp. 2491-2495 ◽  
Author(s):  
J. De Vylder ◽  
S. Van Hoorebeke ◽  
R. Ducatelle ◽  
F. Pasmans ◽  
F. Haesebrouck ◽  
...  
Keyword(s):  
Salmonella Enteritidis ◽  
Laying Hens ◽  
Housing System ◽  
Internal Organs

scholarly journals Colonization of internal organs by Salmonella Enteritidis in experimentally infected laying hens of four commercial genetic lines in conventional cages and enriched colony housing

2019 ◽  
Vol 98 (4) ◽  
pp. 1785-1790 ◽  
Author(s):  
Richard K Gast ◽  
Prafulla Regmi ◽  
Rupa Guraya ◽  
Deana R Jones ◽  
Kenneth E Anderson ◽  
...  
Keyword(s):  
Salmonella Enteritidis ◽  
Laying Hens ◽  
Internal Organs

scholarly journals Effects of Essential Oils-Based Supplement and Salmonella Infection on Gene Expression, Blood Parameters, Cecal Microbiome, and Egg Production in Laying Hens

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 360
Author(s):  
Georgi Yu. Laptev ◽  
Elena A. Yildirim ◽  
Larisa A. Ilina ◽  
Valentina A. Filippova ◽  
Ivan I. Kochish ◽  
...  
Keyword(s):  
Egg Production ◽  
Salmonella Enteritidis ◽  
Laying Hens ◽  
Expression Profiles ◽  
Blood Parameters ◽  
Post Inoculation ◽  
Production Traits ◽  
Immunological Parameters ◽  
Specific Expression ◽  
Blood Biochemical

One of the main roles in poultry resistance to infections caused by Salmonella is attributed to host immunity and intestinal microbiota. We conducted an experiment that involved challenging Lohmann White laying hens with Salmonella Enteritidis (SE), feeding them a diet supplemented with an EOs-based phytobiotic Intebio®. At 1 and 7 days post-inoculation, the expression profiles of eight genes related to immunity, transport of nutrients in the intestine, and metabolism were examined. Cecal microbiome composition and blood biochemical/immunological indices were also explored and egg production traits recorded. As a result, the SE challenge of laying hens and Intebio® administration had either a suppressive or activating effect on the expression level of the studied genes (e.g., IL6 and BPIFB3), the latter echoing mammalian/human tissue-specific expression. There were also effects of the pathogen challenge and phytobiotic intake on the cecal microbiome profiles and blood biochemical/immunological parameters, including those reflecting the activity of the birds’ immune systems (e.g., serum bactericidal activity, β-lysine content, and immunoglobulin levels). Significant differences between control and experimental subgroups in egg performance traits (i.e., egg weight/number/mass) were also found. The phytobiotic administration suggested a positive effect on the welfare and productivity of poultry.

scholarly journals Immunomodulatory action of jacalin from Artocarpus integrifolia and mannoprotein from Saccharomyces uvarum on the humoral immunity of laying hens

2020 ◽  
Vol 50 (4) ◽  
Author(s):  
Marco Aurélio Chiara Silva ◽  
Miriele Caroline da Silva ◽  
João Waine Pinheiro ◽  
Raul Jorge Hernan Castro-Goméz ◽  
Alice Eiko Murakami ◽  
...  
Keyword(s):  
Immune Response ◽  
Protein Interactions ◽  
Antibody Production ◽  
Laying Hens ◽  
Lectin Binding ◽  
Primary Immune Response ◽  
Immunomodulatory Effects ◽  
Saccharomyces Uvarum ◽  
Immunomodulatory Properties ◽  
Artocarpus Integrifolia

ABSTRACT: Advances in the fields of glycobiology and immunology have provided many insights into the role of carbohydrate-protein interactions in the immune system. Jacalin of Artocarpus integrifolia (JCA) and structural mannoprotein of Saccharomyces uvarum (MPS) are molecules with immunomodulatory properties. JCA is an IgA human lectin binding molecule that causes the mitogenic stimulation of immune cells, production of cytokines, chemotaxis, and activation of leukocytes. Studies on the immunomodulatory properties of JCA and MPS in mammals and fish suggest that they have an action on antibody production. The aim of this study was to investigate the possible action of JCA and MPS on the production of specific antibodies in laying hens. For this, laying hens were inoculated with an intra abdominal injection of sheep red blood cells (SRBC) with either JCA (0.075 µg, 0.75 µg, and 7.5 µg) or MPS (20 µg and 100 µg). Levels of anti-SRBC antibodies of the IgY, IgM, and IgA classes were evaluated by ELISA. Results showed that JCA and MPS have immunomodulatory effects on levels of anti-SRBC IgM, IgA, and IgY. An immunostimulatory effect of JCA was observed in primary immune response on anti-SRBC IgY, while an inhibitory effect of JCA and MPS was observed in secondary immune response on the production of IgM and IgA anti-SRBC. These results suggested that MPS and JCA have immunomodulatory effects on antibody production and could be used in future studies on humoral immune response in poultry.

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