The effects and combinational effects of Bacillus subtilis and montmorillonite supplementation on performance, egg quality, oxidation status, and immune response in laying hens

2019 ◽  
Vol 227 ◽  
pp. 114-119 ◽  
Author(s):  
J.F. Chen ◽  
Y.H. Kuang ◽  
X.Y. Qu ◽  
S.C. Guo ◽  
K.L. Kang ◽  
...  
Keyword(s):  
Immune Response ◽  
Bacillus Subtilis ◽  
Laying Hens ◽  
Egg Quality ◽  
Oxidation Status

scholarly journals Effects of Three Strains of Bacillus subtilis Supplemented to Diets on Egg Quality, Intestinal Microflora and Tibia in The Late Stage of Laying Hens

2010 ◽  
Vol 52 (5) ◽  
pp. 389-398 ◽  
Author(s):  
Wan-Seob Lee ◽  
Bo-Keun Lee ◽  
Jea-Young Kim ◽  
Ji-Sook Kim ◽  
So-Yeon Lee ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
Late Stage ◽  
Intestinal Microflora ◽  
Laying Hens ◽  
Egg Quality

Effects of dietary Bacillus subtilis RX7 and B2A supplementation on productive performance, egg quality, blood profiles, and excreta Salmonella counts in laying hens

2020 ◽  
Vol 100 (3) ◽  
pp. 411-417
Author(s):  
Huan Shi ◽  
Wan Lin Zhang ◽  
In Ho Kim
Keyword(s):  
Bacillus Subtilis ◽  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Basal Diet ◽  
Productive Performance ◽  
Blood Profile ◽  
Colony Forming Units ◽  
Dietary Treatments ◽  
Blood Profiles

An experiment was carried out to investigate the effect of Bacillus subtilis RX7 and B2A supplementation on egg production, egg quality, blood profile, and excreta Salmonella population in laying hens. A total of 192 Hy-Line Brown laying hens (40-wk-old) were randomly assigned into four dietary treatments, each of which was replicated eight times with six hens per replicate in a 5 wk trial. The dietary treatments were NC, which is a basal diet without antibiotics or Bacillus subtilis; PC, which is an NC + 0.5 g kg−1 antibiotic (virginiamycin) diet; BSR, which is an NC + 0.5 g kg−1 Bacillus subtilis RX7 (1.0 × 109 colony forming units g−1); and BSB, which is an NC + 0.5 g kg−1 Bacillus subtilis B2A (1.0 × 109 colony forming units g−1). The results showed that hens receiving BSB diets had increased (P < 0.05) eggshell thickness over hens fed the NC, PC, and BSR diets (week 3). The excreta Salmonella counts in the PC, BSR, and BSB groups were lower than the NC group (P < 0.05). These results indicate that dietary inclusion of Bacillus subtilis RX7 and B2A strains effectively decreased excreta Salmonella counts without any detrimental effects on the performance of laying hens.

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