0.857
IF5
0.900
IF
Q3
JCR
0.92
CiteScore
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SJR
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SJR
20
MNiSW
165.24
ICV
ORIGINAL PAPER
 
CC-BY 4.0
 
 

The effect of Bacillus cereus var. toyoi and avilamycin on the faecal microflora of turkeys

E. Biedrzycka 1  ,  
M. Bielecka 1,  
A. Majkowska 1,  
 
1
Department of Food Microbiology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-747 Olsztyn, Poland
2
Department of Poultry Science, University of Warmia and Mazury, Oczapowskiego 5, 10-719 Olsztyn, Poland
J. Anim. Feed Sci. 2003;12(4):821–832
Publish date: 2003-10-28
KEYWORDS
ABSTRACT
The effect of Bacillus cereus var. toyoi spores and avilamycin as bacterial and antibiotic growth promoters, respectively, on faecal microflora of turkeys was determined. The experiment was carried out on 108 turkeys randomly allocated to 3 groups: control and avilamycin- or Bacillus spore-treated. After 12 weeks of feed supplementation and a subsequent 4-week period following withdrawal, selected groups of faecal microflora were determined, and the results were compared with those in the control group. Neither avilamycin nor B. cereus var. toyoi spores affected Bifidobacterium or Lactobacillus counts, whereas both supplements significantly increased the counts of E. coli by 0.84 and 0.69 log cycle (P ≤ 0.05 for both). B. cereus var. toyoi caused a significant increase in counts of spores of both aerobic and anaerobic proteolytic bacteria by 0.98 (P ≤ 0.001) and 0.83 (P ≤ 0.01) log cycle, respectively. At the end of the period following withdrawal, in the avilamycin group, counts of Bifidobacterium and Lactobacillus significantly decreased by 1.14 (P ≤ 0.01) and 1.97 (P ≤ 0.001) log cycle, respectively, as did the counts of anaerobic proteolytic bacteria spores, which decreased by 1.18 (P ≤ 0.001). In the B. cereus var. toyoi group, however, increased counts of Lactobacillus, by 0.91 (P≤0.01), E. coli, by 0.71 (P ≤ 0.05), anaerobic proteolytic bacteria spores, by 1.37 (P ≤ 0.001), and of anaerobic saccharolytic bacteria spores, by 0.72 (P ≤ 0.05) log cycle were found. The tested growth promoters did not affect the groups of beneficial gut microflora, whereas they stimulated the growth of opportunistic bacteria. The performance parameters of turkeys, better in groups administered avilamycin and B. cereus var. toyoi, were comparable with the control at the end of period after withdrawal.
CORRESPONDING AUTHOR
E. Biedrzycka   
Department of Food Microbiology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-747 Olsztyn, Poland
 
CITATIONS (2):
1. Proteolytic Activity of Bacillus cereus Under in vitro Condition
P. Ponmurugan .
Journal of Biological Sciences
2. The Effect of Various Probiotic Strains or Avilamycin Feed Additive on Immune Defense Markers and Acute-Phase Response to Salmonella Infection in Chickens
Maria Bielecka, Wanda Smoragiewicz, Andrzej K. Siwicki, Roman Wójcik, Elżbieta Biedrzycka, Andrzej Orłowski, Signe Kask, Jan Jankowski, Barbara Karska-Wysocki, Daniela Ham
Probiotics and Antimicrobial Proteins
ISSN:1230-1388