scholarly journals Replicated Divergent Selection of Broiler Chickens for High or Low Early Antibody Response to Escherichia coli Vaccination

1992 ◽  
Vol 71 (1) ◽  
pp. 27-37 ◽  
Author(s):  
GABRIEL LEITNER ◽  
ZAHAVA UNI ◽  
AVIGDOR CAHANER ◽  
MICHAL GUTMAN ◽  
E. DAN HELLER
Keyword(s):  
Escherichia Coli ◽  
Antibody Response ◽  
Broiler Chickens ◽  
Divergent Selection ◽  
Selection Of

Divergent Selection of Chickens for Antibody Response to Sheep Erythrocytes: Kinetics of Primary and Secondary Immunizations

1985 ◽  
Vol 29 (2) ◽  
pp. 347 ◽  
Author(s):  
C. O. Ubosi ◽  
E. A. Dunnington ◽  
W. B. Gross ◽  
P. B. Siegel
Keyword(s):  
Antibody Response ◽  
Divergent Selection ◽  
Sheep Erythrocytes ◽  
Kinetics Of ◽  
Selection Of

The selection of optimum fermentation condition for improved expression of sumo-il11 in escherichia coli

2015 ◽  
Vol 37 (1se) ◽  
Author(s):  
Nguyen Thi Quy ◽  
Duong Thu Huong ◽  
Dang Thi Ngoc Ha ◽  
Le Thi Thu Hong ◽  
Do Thi Huyen ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Fermentation Condition ◽  
Selection Of

scholarly journals Selection and co-selection of antibiotic resistances among Escherichia coli by antibiotic use in primary care: An ecological analysis

PLoS ONE ◽  
2019 ◽  
Vol 14 (6) ◽  
pp. e0218134 ◽  
Author(s):  
Koen B. Pouwels ◽  
Berit Muller-Pebody ◽  
Timo Smieszek ◽  
Susan Hopkins ◽  
Julie V. Robotham
Keyword(s):  
Escherichia Coli ◽  
Primary Care ◽  
Antibiotic Use ◽  
Ecological Analysis ◽  
Selection Of

scholarly journals Research Note: Application of an Escherichia coli spray challenge model for neonatal broiler chickens

2021 ◽  
Vol 100 (4) ◽  
pp. 100988
Author(s):  
C.M. Selby ◽  
B.D. Graham ◽  
L.E. Graham ◽  
K.D. Teague ◽  
B.M. Hargis ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Broiler Chickens ◽  
Research Note

scholarly journals Comparison of Common Enrichment Broths Used in Diagnostic Laboratories for Shiga Toxin—Producing Escherichia coli

2021 ◽  
Vol 9 (3) ◽  
pp. 503
Author(s):  
Michael Bording-Jorgensen ◽  
Hannah Tyrrell ◽  
Colin Lloyd ◽  
Linda Chui
Keyword(s):  
Escherichia Coli ◽  
Shiga Toxin ◽  
Real Time Pcr ◽  
Acute Gastroenteritis ◽  
Diagnostic Testing ◽  
First Line ◽  
Gram Negative ◽  
Culture Independent ◽  
Surveillance Programs ◽  
Selection Of

Acute gastroenteritis caused by Shiga toxin-producing Escherichia coli (STEC) affects more than 4 million individuals in Canada. Diagnostic laboratories are shifting towards culture-independent diagnostic testing; however, recovery of STEC remains an important aspect of surveillance programs. The objective of this study was to compare common broth media used for the enrichment of STEC. Clinical isolates including O157:H7 as well as non-O157 serotypes were cultured in tryptic soy (TSB), MacConkey (Mac), and Gram-negative (GN) broths and growth was compared using culture on sheep’s blood agar and real-time PCR (qPCR). In addition, a selection of the same isolates was spiked into negative stool and enriched in the same three broths, which were then evaluated using culture on CHROMagarTM STEC agar and qPCR. TSB was found to provide the optimal enrichment for growth of isolates with and without stool. The results from this study suggest that diagnostic laboratories may benefit from enriching STEC samples in TSB as a first line enrichment instead of GN or Mac.

scholarly journals Use of tellurite for the selection of verocytotoxigenic Escherichia coli O157

1993 ◽  
Vol 39 (2) ◽  
pp. 155-158 ◽  
Author(s):  
P. M. Zadik ◽  
P. A. Chapman ◽  
C. A. Siddons
Keyword(s):  
Escherichia Coli ◽  
Escherichia Coli O157 ◽  
Selection Of

scholarly journals The Use of Lavender (Lavandula angustifolia) Essential Oil as an Additive to Drinking Water for Broiler Chickens and Its In Vitro Reaction with Enrofloxacin

Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1535
Author(s):  
M. Adaszyńska-Skwirzyńska ◽  
D. Szczerbińska ◽  
S. Zych
Keyword(s):  
Escherichia Coli ◽  
Drinking Water ◽  
Body Weight ◽  
Essential Oil ◽  
Water Consumption ◽  
Broiler Chickens ◽  
Lavender Oil ◽  
Resistant Strains ◽  
Synergistic Reaction

Biological activity of lavender essential oil is a property that can potentially find an application in poultry nutrition. Nowadays, the use of bioactive compounds is encouraged in many areas of industry and agriculture, since these substances have similar properties as withdrawn antibiotic growth promoters. Additionally, antibiotic resistance bacteria are one of the most important current threats to animal health. The purpose of the study was to determine the influence of lavender essential oil on the production parameters and blood parameters in broiler chickens and to assess the lavender oil’s in vitro reaction in a combination with enrofloxacin towards Escherichia coli. One-day-old non-sexed chicks (Ross 308) were divided into three experimental groups, each consisting of 100 individuals (five replicate of 20 boiler chicken each). The chickens in the control group received drinking water with no addition of lavender essential oil. In the experimental groups, lavender oil was added to the drinking water at a concentration of 0.4 mL/L, in the LEO1–42 from 1 to 42 days of age and the LEO22–42 group from the 22 to 42 days of age. The chickens’ body weight, feed consumption, water consumption, deaths and elimination due to health reasons were determined in the experiment. On day 42 of the chickens’ lives, blood samples were collected based on which selected parameters were identified. An in vitro experiment of lavender oil in combination with enrofloxacin was investigated with a checkerboard method. The results of the experiment showed the antimicrobial and antioxidant activity of lavender essential oil and its positive effect on the production results of broiler chickens. The study results proved that the addition of lavender oil positively impacted the chickens’ final body weight and feed conversion ratio (p < 0.01). No differences were observed between the groups for water consumption, death rate and the examined biochemical and immunological blood serum indices. Lavender essential oil was demonstrated to increase the blood serum’s total antioxidant status. A synergistic reaction in vitro was observed for lavender oil combined with enrofloxacin against resistant strains of Escherichia coli. Based on our study, a health-promoting effect of adding LEO to water for broiler chickens was found. Moreover, in vitro studies indicate a significant effect of lavender essential oil on the inhibition of the resistant strains of Escherichia coli growth and synergistic reaction with enrofloxacin.

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