Table 1.

Effect of probiotics on growth performance of poultry

Sr	Probiotic	Animal	Inclusion level	Duration (d)	Growth performance	Reference
1	L. plantarum strain IMAU10120 (LP-8)	Broiler	2×106 cfu/mL	42	Improved FCR	[25]
2	L. fermentum (CIP 102980) or a strain of L. spp. (Autruche 4; DQ418552)	Broiler	Dose of 1 mL containing 107 cells	29	WG and feed conversion efficiency was significantly improved	[26]
3	L. agilis JCM 1048 and L. salivarius subsp. salicinius JCM 1230	Broiler		40	Significant increase in weight gain	[27]
4	Pediococcus acidilactici MA18/5M	Broiler	0.8 to 1.6 g	42	Significant improvement in overall growth performance	[28]
5	3 Bacillus subtilis strains	Broiler	3×105 cfu/g of finished feed	41	Improved overall body weight gain	[29]
6	A. oryzae, B. bifidum, B. thermophilus, C. pintolopessi, E. faecium, L. acidophilus, L. bulgaricus, L. plantarum and L. rhamnosus	Broiler	2 gm/10 liters drinking water	42	Significant increase in WG, breast and leg meat yield	[30]
7	L. fermentum and S. cerevisiae	Broiler	0.1% to 0.2%	42	No significant effect on growth performance	[31]
8	L. fermentum CCM 7158	Broiler	1×109 cfu/kg	42	Slightly increased body weight	[32]
	E. faecium M 74		2×109 cfu/kg
9	B. subtilis and E. faecium	Layer	1 and 2 g/kg of feed	70	Significant effect on final body weight gain and FCR	[33]
10	S. boulardii and B. subtilis B10	Broiler	1×108 cfu/kg of feed	72	Significant improvement in live body weight	[34]
11	B. subtilis C-3102	Broiler	0.1% of diet	42	Significantly increased body weight and decreased FCR	[35]
12	B. subtilis PB6 (ATCC-PTA 6737)	Broiler	5×1011 cfu/kg feed	35	FCR was significantly improved	[36]
13	L. ohnsonii, (No.709) L. crispatus (No.697) L. salivarius (No.461) and unidentified Lactobacillus spp.	Broiler		42	No significant effect on growth performance	[37]
14	L. reuteri (DSM 16350), E. faecium (DSM 16211), Bifidobacterium animals (DSM 16284), P. acidilactici (DSM 16210) and L. salivarius (DSM 16351)	Broiler	108 cfu/kg diet	42	Probiotic addition improved WG, FCR and production efficiency factor	[38]
15	Propionibacterium acidipropionici	Broiler	7.5×104 cfu/g of feed	21	Significant improvement in FCR	[58]
16	B. subtilis	Broiler	250 g/ton	21	Improved animal performance	[70]

FCR, feed conversion ratio; WG, weight gain; cfu, colony forming unit.