scholarly journals The natural feed additive caprylic acid decreases Campylobacter jejuni colonization in market-aged broiler chickens

2009 ◽  
Vol 88 (1) ◽  
pp. 61-64 ◽  
Author(s):  
F. Solis de los Santos ◽  
A.M. Donoghue ◽  
K. Venkitanarayanan ◽  
J.H. Metcalf ◽  
I. Reyes-Herrera ◽  
...  
Keyword(s):  
Campylobacter Jejuni ◽  
Caprylic Acid ◽  
Broiler Chickens ◽  
Feed Additive

scholarly journals Caprylic Acid Supplemented in Feed Reduces Enteric Campylobacter jejuni Colonization in Ten-Day-Old Broiler Chickens,

2008 ◽  
Vol 87 (4) ◽  
pp. 800-804 ◽  
Author(s):  
F. Solis de los Santos ◽  
A.M. Donoghue ◽  
K. Venkitanarayanan ◽  
M.L. Dirain ◽  
I. Reyes-Herrera ◽  
...  
Keyword(s):  
Campylobacter Jejuni ◽  
Caprylic Acid ◽  
Broiler Chickens

Use of Caprylic Acid in Broiler Chickens: Effect on Campylobacter jejuni

2015 ◽  
Vol 12 (8) ◽  
pp. 712-718 ◽  
Author(s):  
Petra Hovorková ◽  
Eva Skřivanová
Keyword(s):  
Campylobacter Jejuni ◽  
Caprylic Acid ◽  
Broiler Chickens

scholarly journals TYPLEX® Chelate, a novel feed additive, inhibits Campylobacter jejuni biofilm formation and cecal colonization in broiler chickens

2018 ◽  
Vol 97 (4) ◽  
pp. 1391-1399 ◽  
Author(s):  
F. Khattak ◽  
V. Paschalis ◽  
M. Green ◽  
J.G.M. Houdijk ◽  
P. Soultanas ◽  
...  
Keyword(s):  
Campylobacter Jejuni ◽  
Biofilm Formation ◽  
Broiler Chickens ◽  
Feed Additive

scholarly journals The Interplay between Campylobacter and the Caecal Microbial Community of Commercial Broiler Chickens over Time

2021 ◽  
Vol 9 (2) ◽  
pp. 221
Author(s):  
Ilaria Patuzzi ◽  
Massimiliano Orsini ◽  
Veronica Cibin ◽  
Sara Petrin ◽  
Eleonora Mastrorilli ◽  
...  
Keyword(s):  
Campylobacter Jejuni ◽  
Broiler Chickens ◽  
Control Strategies ◽  
Chicken Meat ◽  
Control Measures ◽  
Microbial Network ◽  
Gut Colonization ◽  
Commercial Broiler ◽  
Zoonotic Bacteria ◽  
Human Infections

Campylobacter is the most frequent foodborne zoonotic bacteria worldwide, with chicken meat being overwhelmingly the most important reservoir for human infections. Control measures implemented at the farm level (i.e., biosecurity or vaccination), which have been successfully applied to limit other pathogens, such as Salmonella, have not been effective in reducing Campylobacter occurrence. Thus, new approaches are needed to fully understand the ecological interactions of Campylobacter with host animals to effectively comprehend its epidemiology. The objective of this study was to analyse longitudinally the gut microbiota composition of Campylobacter-infected and non-infected farms to identify any difference that could potentially be indicative of gut colonization by Campylobacter spp. Differences in the colonization rate and timing were observed at the farms that became positive for Campylobacter jejuni over the investigated time points, even though in positive tests, the occurrence of Campylobacter jejuni gut colonization was not observed before the second week of the life of the birds. Significant differences were observed in the abundances of specific bacterial taxa between the microbiota of individuals belonging to farms that became Campylobacter positive during the study and those who remained negative with particular reference to Bacteroidales and Clostridiales, respectively. Moreover, Campylobacter colonization dramatically influenced the microbiota richness, although to a different extent depending on the infection timing. Finally, a key role of Faecalibacterium and Lactobacillus genera on the Campylobacter microbial network was observed. Understanding the ecology of the Campylobacter interaction with host microbiota during infection could support novel approaches for broiler microbial barrier restoration. Therefore, evidence obtained through this study can be used to identify options to reduce the incidence of infection at a primary production level based on the targeted influence of the intestinal microbiota, thus helping develop new control strategies in order to mitigate the risk of human exposure to Campylobacter by chicken meat consumption.

scholarly journals The Effect of Dietary Halloysite Supplementation on the Performance of Broiler Chickens and Broiler House Environmental Parameters

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 2040
Author(s):  
Małgorzata Nadziakiewicz ◽  
Marcin Wojciech Lis ◽  
Piotr Micek
Keyword(s):  
Body Weight ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Environmental Parameters ◽  
Feed Consumption ◽  
Feed Additive ◽  
Feed Conversion ◽  
Daily Body Weight ◽  
Daily Water ◽  
Broiler House

The aim of the study was to determine the effect of supplementing broiler chickens’ diets with halloysite on daily body weight gain (BWG), feed conversion ratio (FCR), daily water consumption (DWC), and some broiler house hygiene parameters. The trial was conducted on 18,000 broiler chickens divided into two groups throughout the 42-day (D) rearing period. The birds were fed complete diets without (group C) or with halloysite addition (1%, group E) from D8 of rearing. No difference in the mortality rate was observed between groups C and E. Birds from group E had a tendency (0.05 < p < 0.10) towards a higher body weight at D32 and D42, a higher BWG, and a lower FCR compared to group C during the entire rearing period. Average DWC differed only in the finisher period, with a tendency towards lower overall DWC in group E. The concentration of ammonia in the air from D21 to D35 was increased more than 5-fold in group C but only 1.5-fold in group E. In conclusion, the use of halloysite as a feed additive in the diet of broiler chickens resulted in a reduction in feed consumption per unit of BWG and higher utilisation of crude protein, which led to improved environmental conditions.

scholarly journals Lysolecithin as feed additive enhances collagen expression and villus length in the jejunum of broiler chickens

2017 ◽  
Vol 96 (8) ◽  
pp. 2889-2898 ◽  
Author(s):  
D.L. Brautigan ◽  
R. Li ◽  
E. Kubicka ◽  
S.D. Turner ◽  
J.S. Garcia ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Feed Additive ◽  
Collagen Expression

Effects of Moringa Oleifera Leaf Polysaccharide on Growth Performance and Immune Response of Broiler Chickens

2021 ◽  
Author(s):  
Hosameldeen Mohamed Husien ◽  
JunJie Huang ◽  
WeiLong Peng ◽  
ShuMei Zheng ◽  
JinGui Li
Keyword(s):  
Immune Response ◽  
Growth Performance ◽  
Broiler Chickens ◽  
Moringa Oleifera ◽  
The Body ◽  
Feed Consumption ◽  
Feed Additive ◽  
Control Group ◽  
High Dose ◽  
Tnf Α

Abstract Moringa oleifera (MO) is a widely used as the nutritious and non-traditional feed supplementation containing kinds of bioactive substances. However, the enhancement effect of Moringa oleifera leaf Polysaccharide (MOLP) as a feed additive in broilers growth performance and immunity remains unclear. In this study, MOLP was obtained by water extraction and alcohol precipitation method, then purified with Trichloroacetic acid (TCA) assay. Chickens were randomly divided into 4 groups, to receive different doses of MOLP (0, 0.1, 0.2, 0.4g/kg) in feed for 3 weeks. The body weight gain (BWG) and feed consumption were recorded for feed conversion ratio (FCR) and average daily feed intake (ADFI) calculation. Broiler chickens were sacrificed and sampled on day 14, 21, 28 (D 14, D 21, and D 28) respectively. Serological indicators, including total protein (TP), albumin (ALB), globulin (GLO), and creatinine (CREA) were detected. ELISA kits were applied for detecting the levels of immunoglobulin A (IgA), immunoglobulin G (IgG), interleukin-2 (IL-2), and tumor necrosis factor (TNF-α). From D 21 to D 28, the results showed that middle dose of MOLP significantly increased BWG and ADFI as well as liver and bursa indexes when compared with the control group. In addition, TP and GLO were also increased (P<0.05). All MOLP treatments enhanced the serum concentrations of IgG and IL-2 (P<0.01). Furthermore, results of quantitative RT-PCR showed that high dose of MOLP treatment significantly increased (P<0.001) the mRNA expression levels of IL-2 and TNF-α of chickens relative to the control group. In conclusion, the results showed that MOLP supplementation contributed to improve growth performance and immune response in broiler chickens, and MOLP could be considered as a promising feed additive.

Incidence of Salmonella, Campylobacter jejuni, Campylobacter coli, and Listeria monocytogenes in Poultry Carcasses and Different Types of Poultry Products for Sale on the Belgian Retail Market

1999 ◽  
Vol 62 (7) ◽  
pp. 735-740 ◽  
Author(s):  
M. UYTTENDAELE ◽  
P. DE TROY ◽  
J. DEBEVERE
Keyword(s):  
Listeria Monocytogenes ◽  
Campylobacter Jejuni ◽  
Broiler Chickens ◽  
Salmonella Enteritidis ◽  
Contamination Level ◽  
Contamination Rate ◽  
Campylobacter Coli ◽  
Retail Market ◽  
Salmonella Spp ◽  
Poultry Products

From January 1997 to May 1998, 772 samples of poultry carcasses and poultry products for sale on the retail market in Belgium were analyzed for the presence of Salmonella spp., Salmonella Enteritidis, Campylobacter jejuni, C. coli, and Listeria monocytogenes per 100 cm2 or 25 g. Poultry samples were contaminated with Salmonella (36.5%), C. jejuni and C. coli (28.5%), and L. monocytogenes (38.2%). In about 12.3% of the poultry samples, the L. monocytogenes contamination level exceeded 1 CFU per g or cm2. Significant differences in pathogen contamination rates of poultry products were noticed between the poultry products originating from Belgian, French, and U.K. abattoirs. Poultry products derived from broiler chickens running free in pine woods until slaughtering age (12 to 13 weeks) had a significantly (P &lt; 0.05) lower contamination rate of Salmonella than poultry products from enclosed broilers slaughtered at the age of 6 to 8 weeks. A significantly (P &lt; 0.05) lower pathogen contamination rate was noted for Salmonella, C. jejuni, and C. coli for poultry cuts without skin compared to poultry cuts with skin on. An increase in pathogen contamination rate was noticed during cutting and further processing. To diminish C. jejuni, C. coli, Salmonella, and L. monocytogenes contamination rates, hygienic rules of slaughter and meat processing must be rigorously observed. At the moment, zero tolerance for these pathogens is not feasible, and there is a need to establish criteria allowing these pathogens to be present at reasonable levels in the examined poultry samples.

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