. 2016 Jun 30;30(4):576–584. doi: 10.5713/ajas.16.0207

Table 1.

Effects of engineered Bacillus subtilis on weaned piglet weight gain and feed/weight gain ratio at 15 d post Bacillus subtilis treatments

Groups	Untreated control	Wild-type Bacillus subtilis	Engineered Bacillus subtilis	Chlortetracycline
Average initial weight (kg)	6.59±0.14	6.62±0.15	6.65±0.15	6.55±0.10
Average final weight (kg)	9.10±0.27^a	9.64±0.32^b	10.49±0.28^c	10.71±0.19^c
Average daily gain (kg)	0.17±0.024^a	0.20±0.024^b	0.26±0.020^c	0.28±0.010^d
Average daily feed intake (kg/d)	0.316^a	0.348^a	0.396^b	0.453^c
Feed/weight gain ratio	1.89^a	1.73^b	1.55^c	1.63^bc

^a–d

Mean values in the same row with different superscripts differ significantly (p<0.05).