Table 3. Phenotypic profiles of the 51 Brachyspira spp. isolates recovered from faecal samples from geese and mallards collected in northwestern Spain (Villafáfila Lagoons Nature Reserve).

Biochemical Group	Indicated species	No. of isolates	%	Haemolysis	Indole	Hippurate	α-Galactosidase	β-Glucosidase
I	B. hyodysenteriae “B. suanatina”	0	0	Strong	+	-	-	+
II	B. intermedia	0	0	Weak	+	-	-	+
IIIa	B. innocens	20	39.2	Weak	-	-	+	+
IIIbc	B. murdochii	12	23.6	Weak	-	-	-	+
IV	B. pilosicoli	0	0	Weak	-	+	-	-
-	B. alvinipulli	7	13.7	Weak	-	+	-	+
-		2	3.9	Weak	-	+	+	+
-	“B. hampsonii”	10	19.6	Strong	-	-	-	+