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. 2021 Mar 15;100(7):101134. doi: 10.1016/j.psj.2021.101134

Table 3.

Effect of dietary spray-dried plasma on the concentration of Salmonella Enteritidis in ceca and liver of broiler chickens (Experiment 2).

Log10 CFU / g cecal contents
 Prevalence ratio3 in ceca (Day 28 PC) Liver invasion ratio4 (Day 3 PC)
Treatment1 Day 3 PC2 Day 7 PC Day 14 PC
CON-SE 5.68 ± 0.36a 4.17 ± 0.18a 2.48 ± 0.05a 6/8 6/8a
BMD-SE 3.39 ± 0.14b 2.41 ± 0.12b 1.53 ± 0.09b 4/8 1/8b
SDP-SE 3.58 ± 0.11b 2.26 ± 0.09b 1.06 ± 0.05c 6/8 5/8a
SEM 0.246 0.143 0.073 0.264 0.244
P-value <0.0001 <0.0001 <0.0001 0.7479 0.0001

a-cMean values bearing different superscript letters within a column are significantly different (P < 0.05).

1

Treatment CON consisted of chicks fed unmedicated corn-soybean meal (SBM) basal without SDP; Treatment BMD consisted of chicks given unmedicated corn-SBM basal into which bacitracin methylene disalicylate (BMD) was added at 0.055 g/kg diet; Treatment SDP consisted of chicks given unmedicated corn-SBM basal into which SDP was added at 30 g/kg diet; Treatments CON-SE, BMD-SE, and SDP-SE, consisted of chicks that were given diets similar to CON, BMD, and SDP, respectively, and were each inoculated with 7.48 × 108 CFU Salmonella Enteritidis (SE) /mL at 1 d of age.

2

PC, postchallenge.

3

Prevalence Ratio (SPR) in ceca = number of birds whose ceca were positive for Salmonella Enteritidis / Total number of birds evaluated in each treatment category.

4

Liver invasion Ratio = number of birds whose liver(s) were positive for Salmonella Enteritidis / Total number of birds evaluated in each treatment category.