Effects of different amino acid levels and a carvacrol–thymol blend on growth performance and intestinal health of weaned pigs

Table 4 Growth performance of piglets

Items	Low AA		High AA		SEM	P-value
Items	CB (−)	CB(+)	CB(−)	CB(+)	SEM	AA	CB	AA×CB
Number of pens	5	5	4	5
1 d BW, kg	7.74	7.75	7.74	7.77	0.01	0.60	0.40	0.91
14 d BW, kg	10.85	11.29	11.07	11.56	0.09	0.14	< 0.01	0.87
42 d BW, kg	29.38	29.34	28.87	29.14	0.32	0.56	0.85	0.80
1 ~ 14 d
ADG, g/d	226.49	255.57	236.61	268.09	6.33	0.32	0.01	0.91
ADFI, g/d	340.91	372.02	311.59	343.63	8.41	0.04	0.03	0.97
ADLysI, g/d	4.60	5.02	4.67	5.15	0.10	0.58	0.02	0.87
FCR	1.51	1.46	1.32	1.29	0.03	< 0.01	0.31	0.91
Diarrhea rate, %	7.31 ^a	5.78 ^ab	5.51 ^ab	5.24 ^b	0.47	0.03	0.07	0.03
Diarrhea index	0.18 ± 0.04	0.15	0.13	0.12	0.01	0.09	0.64	0.46
15 ~ 42 d
ADG, g/d	657.21	642.87	632.62	628.98	8.28	0.28	0.61	0.76
ADFI, g/d	899.44	905.25	899.84	888.96	16.46	0.82	0.94	0.81
ADLysI, g/d	11.24	11.32	12.6	12.45	0.25	0.01	0.93	0.80
FCR	1.37	1.41	1.42	1.41	0.01	0.98	0.72	0.39
1 ~ 42 d
ADG, g/d	515.35	514.56	501.96	508.79	6.47	0.50	0.83	0.79
ADFI, g/d	713.27	727.51	703.76	707.19	12.92	0.57	0.74	0.84
ADLysI, g/d	7.92	8.17	8.64	8.80	0.15	0.03	0.48	0.89
FCR	1.38	1.41	1.40	1.39	0.01	0.98	0.72	0.39

All results are presented as mean ± SEM. AA Amino acid effect, CB a carvacrol–thymol blend effect, AA×CB interaction effect of amino acid and a carvacrol–thymol blend, ADLysI average daily lysine intake. P < 0.05 significant difference, P < 0.01 extremely significant difference

ISSN: 2049-1891