Table 1. Growth performance according to the drying type and addition level of sweet potato (Ipomoea batatas L.) leaves and stems

Item	NL		HL		FL		NS		HS		FS		SEM¹	P-value
Item	0.1%	0.3%	0.1%	0.3%	0.1%	0.3%	0.1%	0.3%	0.1%	0.3%	0.1%	0.3%	SEM¹	P-value
Initial BW (g)	33.60	33.57	33.27	33.53	33.58	33.48	33.30	33.35	33.32	33.33	33.32	33.63	0.05	0.847
1 week
BW (g)	134.7	130.7	126.9	133.6	128.7	131.8	129.6	131.3	126.3	129.4	127.4	132.9	0.925	0.238
BWG (g)	101.1	97.1	93.6	100.1	95.2	98.3	96.3	98.0	93.0	96.1	94.1	99.3	0.988	0.306
ADFI (g)	23.48	23.48	22.19	23.38	24.24	23.95	21.90	21.80	21.33	23.67	23.14	22.19	0.341	0.791
FCR	1.62	1.69	1.66	1.64	1.78	1.71	1.59	1.56	1.60	1.72	1.73	1.56	0.037	0.777
3 week
BW (g)	647.4	631.0	632.5	641.4	651.4	647.8	643.8	627.2	623.0	674.6	625.2	634.3	6.159	0.956
BWG (g)	512.6	500.3	505.6	507.8	522.7	516.1	514.2	495.9	496.7	545.2	497.8	501.4	5.966	0.955
ADFI (g)	61.83	58.86	60.17	61.81	58.90	59.95	59.93	59.90	58.71	61.17	59.62	60.45	0.334	0.970
FCR	1.66	1.68	1.70	1.71	1.59	1.63	1.63	1.81	1.68	1.60	1.75	1.69	0.018	0.504
5 week
BW (g)	1,487.9	1,556.3	1,535.4	1,609.6	1,557.3	1,579.6	1,551.1	1,526.4	1,543.5	1,641.9	1,534.4	1,495.3	16.41	0.889
BWG (g)	840.5	925.3	902.9	968.1	905.9	931.8	907.2	899.2	920.5	967.4	909.2	861.0	12.65	0.794
ADFI (g)	126.1	134.0	134.2	129.0	126.7	135.7	129.2	129.5	132.5	138.8	124.6	128.1	1.109	0.230
FCR	2.13	2.04	2.09	1.87	1.97	2.04	2.01	2.02	2.03	2.01	1.92	2.08	0.023	0.653
Overall period
BWG (g)	1,454.3	1,522.7	1,502.1	1,576.0	1,523.7	1,546.1	1,517.8	1,493.0	1,510.2	1,608.6	1,501.1	1,461.6	16.43	0.889
ADG (g)	37.03	38.57	37.99	39.91	38.54	39.15	38.43	37.88	38.17	40.59	37.98	37.16	0.397	0.904
ADFI (g)	70.15	72.43	72.52	71.39	69.96	73.2	70.34	71.45	71.17	74.88	69.83	70.26	0.429	0.386
FCR	1.90	1.88	1.92	1.79	1.82	1.87	1.83	1.89	1.87	1.85	1.84	1.89	0.014	0.859

SEM, Standard error of means.
BW, body weight; BWG, body weight gain; ADFI, average daily feed intake; ADG, average daily body weight gain; FCR, feed conversion ratio.
NL, natural drying leaves; HL, hot air drying leaves; FL, freeze drying leaves; NS, natural drying stems; HS, hot air drying stems; FS, freeze drying stems.