. 2021 Jan 14;100(4):100988. doi: 10.1016/j.psj.2021.01.011

Table 1.

Presumptive non–lactose-fermenting gram-negative and lactic acid bacteria (LAB) recovered from gastrointestinal tract at day-of-hatch (exp 1 & exp 2).

Treatment	Gram-negative bacteria¹ (Log₁₀)		LAB (Log₁₀)
Treatment	Exp 1	Exp 2	Exp 1	Exp 2
Negative control	0.00 ± 0.00^c	0.00 ± 0.00^c	0.00 ± 0.00^b	0.25 ± 0.25^b
Spray challenged seeder chicks	8.30 ± 0.11^a	7.78 ± 0.45^a	6.53 ± 0.92^a	4.74 ± 0.82^a
Spray challenged contact chicks	4.09 ± 0.71^b	5.19 ± 0.79^b	4.17 ± 0.85^a	3.87 ± 0.95^a

The lowercase superscript letters indicate significant differences between treatments per column (P < 0.05).

Data are expressed as mean log₁₀ CFU/g ± SE.