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The effect of Escherichia coli ŽP strain with a conjugation-based colicin E7 delivery on growth performance, hematological, biochemical, and histological parameters, gut microbiota, and nonspecific immunity of broilersOrlova, Ekaterina G. ...The Escherichia coli ŽP strain (ŽP) was constructed based on the known probiotic E. coli strain Nissle 1917. It was genetically modified to carry the colicin E7 synthesis gene encoding DNase on a ... conjugative plasmid and the colicin E7 immunity gene in the chromosome. The aim of this study was to evaluate the effects of the daily ŽP per oral administration (5 × 108 or 5 × 1010 CFU per bird) on the growth performance, hematological, biochemical, histological parameters, gut microbiota, and nonspecific immunity of the 4–24 days old broilers. The ŽP administration increased the abundance of genera Bacillus, Butyrivibrio, and Clostridium and did not influence the weight gain of 4–16 days old broilers. The biochemical parameters were within normal ranges for poultry in experimental and control groups. The ŽP administration had no effect on the erythrocyte numbers, hemoglobin and immunoglobulin Y concentrations, but significantly increased the serum lysozyme concentration, leukocyte numbers, and reactive oxygen species production by phagocytes compared with the control group. It did not cause inflammatory changes in intestinal mucosa, Peyer’s patches, and spleen. Thus, the ŽP had no detrimental effects on broiler health and could be an efficient probiotic for the broiler colibacillosis prophylaxis.Vir: Canadian journal of microbiology = Journal canadien de microbiologie. - ISSN 0008-4166 (Vol. 68, no. 11, Nov. 2022, str. 687-702)Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasleLeto - 2022Jezik - angleškiCOBISS.SI-ID - 122198275
Avtor
Orlova, Ekaterina G. |
Maslennikova, Irina L. |
Pospelova, Julia S. |
Starčič Erjavec, Marjanca |
Loginova, Natalia P. |
Troinich, Yana N. |
Kuznetsova, Marina V.
Teme
Escherichia coli |
perutnina |
črevesna mikrobiota |
imunost |
probiotiki |
E. coli ŽP |
colicin E7 |
broiler |
gut microbiota |
nonspecific immunity |
probiotic
Vnos na polico
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Orlova, Ekaterina G. | |
Maslennikova, Irina L. | |
Pospelova, Julia S. | |
Starčič Erjavec, Marjanca | 16064 |
Loginova, Natalia P. | |
Troinich, Yana N. | |
Kuznetsova, Marina V. |
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