Effects of spray dried plasma on litter growth performance and oxidative stress and inflammation of sows kept in a hot environment

Table 6 Influence of sow treatment group and phase 1 diet on growth performance of weaned pigs^1–3

Parity:	Young				Mature				Pooled SEM	P-value⁴
Sow SDP, %:	‒		0.50		‒		0.50			P-value⁴
Nursery SDP, %:	‒	6.00	‒	6.00	‒	6.00	‒	6.00		S	N	S × N
d 1 to 7
Initial BW, kg	5.74	5.70	5.45	5.51	5.69	5.85	5.70	5.61	0.17	0.441	0.808	0.851
ADG, g	35	109	37	111	8	101	25	95	11.09	0.377	< 0.001	0.557
ADFI, g	105	157	111	163	90	155	105	147	9.88	0.610	< 0.001	0.618
G:F	0.27	0.62	0.34	0.68	0.19	0.66	0.12	0.56	0.07	0.233	< 0.001	0.646
d 7 BW, kg	5.91	6.48	5.67	6.23	5.77	6.53	5.85	6.27	0.20	0.700	< 0.001	0.799
d 7 to 14
ADG, g	171^yz	188^yz	188^yz	195^yz	129^z	202^y	181^yz	210^y	19.26	0.314	< 0.001	0.051
ADFI, g	231	236	240	252	205	253	243	271	17.22	0.239	0.004	0.209
G:F	0.70^ab	0.76^ab	0.81^a	0.81^a	0.62^b	0.82^a	0.74^ab	0.78^ab	0.04	0.216	< 0.001	0.008
d 14 BW, kg	7.10	7.82	6.98	7.67	6.69	7.84	6.98	7.59	0.26	0.911	< 0.001	0.597
d 1 to 14
ADG, g	104	148	112	150	70	146	98	154	12.75	0.344	< 0.001	0.115
ADFI, g	169	196	173	206	147	199	169	210	11.81	0.460	< 0.001	0.477
G:F	0.58^bcd	0.74^a	0.63^abc	0.72^ab	0.44^d	0.71^ab	0.52^cd	0.72^ab	0.04	0.206	< 0.001	0.021
d 14 to 36
ADG, g	488	511	499	477	494	520	504	509	16.82	0.693	0.341	0.151
ADFI, g	693	744	708	727	710	784	721	755	24.88	0.648	< 0.001	0.445
G:F	0.71^ab	0.69^abc	0.71^a	0.66^c	0.70^abc	0.67^bc	0.70^ab	0.68^abc	0.01	0.354	< 0.001	0.026
Final BW, kg	17.95	18.76	17.96	18.18	17.64	19.38	18.13	18.86	0.54	0.895	0.006	0.383
Overall
ADG, g	341	363	349	352	332	374	344	367	12.53	0.987	0.002	0.246
ADFI, g	481	517	498	517	488	548	503	541	17.54	0.666	< 0.001	0.530
G:F	0.69	0.70	0.70	0.68	0.69	0.69	0.69	0.69	0.01	0.905	0.506	0.204

^a–dMeans within a row lacking a common superscript letter differ (P < 0.05)
^y,zMeans within a row lacking a common superscript letter differ (P < 0.10)
¹Data are least square means of 13 to 19 observations per diet
²ADFI Average daily feed intake, ADG Average daily gain, BW Body weight, G:F Gain to feed ratio, SDP Spray dried plasma
³All pigs were fed a diet without or with 6% SDP for 14 d post-weaning, and then fed a common diet with no SDP from d 14 to 36 post-weaning
⁴P-values were calculated for the main effects of sow treatment (S) and nursery diet (N) and the interaction between sow treatment and nursery diet (S × N)

ISSN: 2049-1891