Blood and faecal biomarkers to assess dietary energy, protein and amino acid efficiency of utilization by growing and finishing pigs

Table 6 Blood serum and faecal volatile fatty acid (VFA) profile from 56 growing pigs grouped by dietary treatment (n = 4) in study 2¹

Traits	Dietary treatment ²							SEM	p-Value
Traits	C2	LP2	HP2	LA2	HA2	LE2	HE2	SEM	p-Value
Blood serum
Albumin, g/L	36.04^ab	34.76^ab	38.05^a	32.10^b	39.08^a	37.25^a	37.19^a	1.083	< 0.001
Glucose, mmol/L	5.37	5.83	5.72	5.94	6.05	5.69	5.57	0.253	0.559
Triglycerides, mmol/L	0.33^b	0.55^ab	0.44^ab	0.57^ab	0.47^ab	0.67^a	0.61^a	0.059	0.004
Cholesterol, mmol/L	2.34^b	2.61^ab	2.45^ab	2.52^ab	2.39^ab	2.35^b	2.80^a	0.107	0.046
Creatinine, µmol/L	111.01	100.29	117.56	113.89	112.97	113.00	107.34	4.422	0.168
Total protein, g/L	61.98^ab	64.60^ab	65.95^a	59.98^b	63.49^ab	61.64^ab	63.44^ab	1.391	0.077
Faecal VFA, % of total VFA
Acetic	55.99	55.22	54.64	54.66	56.84	56.37	56.01	1.192	0.798
Propionic	21.15^b	23.18^ab	21.40^b	24.53^a	21.19^b	21.57^b	21.51^b	0.567	< 0.001
Butyric	13.53	12.57	13.25	11.81	13.42	13.04	13.42	0.710	0.608
Valeric	4.08	3.96	4.09	3.99	3.72	4.18	3.49	0.367	0.844
VFA, mmol/kg	93.78	88.44	91.55	86.58	95.75	99.86	88.38	6.281	0.754

¹Blood and faecal samples were collected from 2 pigs/pen selected randomly at day 14 of the trial at 14 weeks of age (Means ± Standard error mean [SEM])
²Dietary treatments: C2 (Control; 10.03 MJ/kg NE; 165.0 g of CP; 9.5 g of SID Lys per kg of feed), LP2 (Low protein; 10.07 MJ/kg NE; 140.0 g of CP; 9.5 g of SID Lys per kg of feed), HP2 (High protein; 10.03 MJ/kg NE; 190.0 g of CP; 9.5 g of SID Lys per kg of feed), LA2 (Low amino acid; 10.03 MJ/kg NE; 135.0 g of CP; 7.5 g of SID Lys per kg of feed), HA2 (High amino acid; 10.07 MJ/kg NE; 165.0 g of CP; 11.5 g of SID Lys per kg of feed), LE2 (Low energy; 9.61 MJ/kg NE; 165.0 g of CP; 9.5 g of SID Lys per kg of feed), and HE2 (High energy; 10.45 MJ/kg NE; 165.0 g of CP; 9.5 g of SID Lys per kg of feed)
^a⁻^bWithin rows, significant differences between groups (P < 0.05)

ISSN: 2055-5660