Table 1.

Number of pups born to each C57Bl/6 mother and number of dam-reared pups culled at each timepoint.

	Mother/litter	Number of pups in litter	Cull day: 1	Cull day: 2
			Number of pups (age in days)	Number of pups (age in days)
Group A: administered B. bifidum PAM5 and UCC2003PK1	A1	8	4 (10 days)	4 (14 days)
	A2	0
	A3	3	2 (11 days)	1 (15 days)
	A4	0
	A5	0
	A6	0
	A7	7	3 (11 days)	4 (15 days)
			Total 9 animals	Total 9 animals
Group B: administered B. bifidum PAM5 and UCC2003∆nagA1 + 2PK1	B1	5	2 (8 days)	3 (12 days)
	B2	6	3 (12 days)	3 (16 days)
	B3	8	4 (10 days)	4 (14 days)
	B4	0
	B5	7	3 (10 days)	4 (14 days)
	B6	4	2 (9 days)	2 (13 days)
	B7	0
			Total 14 animals	Total 16 animals