Supplementation of different fat sources affects growth performance and carcass composition of finishing pigs

Table 4 Effects of dietary soybean oil (SBO) and choice white grease (CWG) on growth performance of finishing pigs, Exp. 1^a

Item	Dietary treatment					SEM	P-value
Item	Control	3% SBO	6% SBO	3% CWG	6% CWG		Control vs. Fat^b	Source^c	Level^d	Source×Level^e
Initial BW, kg	65.89	63.94	65.88	64.58	63.61	0.852	0.15	0.35	0.57	0.10
D 21 BW, kg	90.66	89.58	89.90	90.88	91.10	1.196	0.83	0.30	0.82	0.97
Final BW, kg	120.82	120.85	122.59	120.17	123.84	1.678	0.58	0.87	0.12	0.57
Phase I (d 0 to 21)
ADG,^f kg	1.180	1.229	1.144	1.252	1.309	0.036	0.18	< 0.05	0.70	0.054
ADFI,^f kg	3.168	3.100	2.936	3.152	3.022	0.089	0.26	0.44	0.11	0.85
G:F^f	0.382	0.406	0.395	0.403	0.443	0.009	< 0.01	< 0.05	0.12	< 0.05
Phase II (d 22 to 49)
ADG,^f kg	0.908	1.117	1.167	1.046	0.845	0.119	0.31	0.11	0.53	0.30
ADFI,^f kg	3.539	3.458	3.299	3.379	3.264	0.082	< 0.05	0.50	0.10	0.79
G:F^f	0.300	0.324	0.354	0.310	0.339	0.010	< 0.01	0.13	<.01	0.94
Overall
ADG,^f kg	1.032	1.088	1.157	1.134	1.058	0.077	0.38	0.74	0.97	0.35
ADFI,^f kg	3.415	3.339	3.178	3.304	3.183	0.075	< 0.05	0.84	0.07	0.79
G:F^f	0.333	0.357	0.371	0.348	0.383	0.007	< 0.01	0.84	< 0.01	0.15

^aData were least squares means of 9 observations per treatment
^bContrast analyses between control diet and the average of other 4 diets
^cContrast analyses between the average of two SBO diets and the average of two CWG diets
^dContrast analyses between the average of two 3% fat diets and the average of two 6% fat diets
^eContrast analyses between the average of 3% SBO + 6% CWG and the average of 3% CWG + 6% SBO
^fADFI Average daily feed intake, ADG Average daily gain, G:F Gain:feed

ISSN: 2049-1891