TABLE 4.

Recovery at necropsy of probiotic bacteria from tissue specimens from six calves treated with probiotic bacteria

Site of tissue sample	No. of tissue samples positive/ total no. tested	CFU/g of tissue content
		Rangea	Meanb
Rumen	5/6	<0.5 × 101–1.0 × 103	1.3 × 102
Reticulum	5/6	<0.5 × 101–4.0 × 102	6.9 × 101
Omasum	5/6	<0.5 × 101–3.2 × 102	6.0 × 101
Ileum	2/6	2.5 × 101–6.3 × 103	1.1 × 103
Cecum	5/6	<0.5 × 101–2.5 × 103	8.6 × 102
Spiral colon	5/6	<0.5 × 101–5.0 × 103	1.4 × 103
Decending colon	5/6	<0.5 × 101–3.2 × 103	6.0 × 102

^aRange of recovery. Bacterial enumeration was performed by surface plating samples onto SMA-NA plates in quadruplicate. Enrichment culture positive is expressed as <0.5 × 10¹ CFU/g. 

^bGeometric mean.