. 2017 Nov 4;97(1):236–246. doi: 10.3382/ps/pex300

Table 3.

The effect of different two-stage fermented feeds on broiler growth performance¹ (Trial 1).

	Control	Fermented feed²						SEM	P-value
		BBC	BLC	BLA	BLA15	BLD	BLR24
Weight gain, g/bird
0 to 21 d	689^a	749^a	729^a	746^a	715^a	564^b	720^a	26	0.0024
Feed intake, g/bird
0 to 21 d	988^a	994^a	1,001^a	1,045^a	997^a	796^b	999^a	26	0.0002
Feed conversion ratio, feed intake/weight gain
0 to 21 d	1.43^a	1.33^b	1.37^a,b	1.40^a	1.39^a,b	1.41^a	1.39^a,b	0.02	0.0854
Survival rate, %	97.9^a,b	97.9^a,b	100^a	95.8^a,b	95.8^a,b	89.6^b	95.8^a,b	2.7	0.2662
PEF³	238^a	278^a	268^a	259^a	249^a	184^b	251^a	16	0.0192

¹Data are means of 3 pens of broilers with 16 broilers per pen.

²BBC: fermented feed cultures were Bacillus subtilis var. natto N21 (BS) and Bacillus coagulans L12; BLC: fermented feed cultures were BS and Lactobacillus case; BLA fermented feed cultures were BS and Lactobacillus acidophilus; BLA15: fermented feed cultures were BS and Lactobacillus acidophilus L15; BLD: fermented feed cultures were BS and Lactobacillus delbruekckii; BLR24: fermented feed cultures were BS and Lactobacillus reuteri P24.

³Production efficiency factor, PEF = (Survival rate (%) × BW (kg))/(age (d) × feed conversion ratio) × 100.

^a,bMeans in the same row with different superscripts are significantly different (P < 0.05).