Strategies to improve fiber utilization in swine

Table 3 Apparent total tract digestibility (%) of starter pigs fed exogenous feed additives ¹

Treatment²	GE	N	C	S	P	ADF	NDF	EE
Control	79.2	79.9	79.9	78.5	60.1	40.1	36.6	64.2
Allzyme	76.5	77.6	77.4	77.5	55.6	30.6	27.3	61.5
P value ³	0.01	0.01	0.01	0.17	0.01	0.01	0.01	0.14
BactoCel	80.0	80.4	80.3	80.1	59.8	39.4	39.3	64.9
P value ³	0.14	0.55	0.42	0.03	0.79	0.76	0.15	0.66
BioPlus2B	79.5	80.3	80.0	79.6	58.7	37.7	35.0	65.0
P value ³	0.59	0.64	0.85	0.17	0.24	0.31	0.39	0.64
Econase	78.3	78.7	79.1	77.0	54.0	35.6	32.5	62.8
P value ³	0.07	0.07	0.10	0.04	0.01	0.06	0.03	0.45
Hemicel	78.9	79.0	79.6	79.0	59.5	36.3	33.4	65.5
P value ³	0.53	0.17	0.48	0.49	0.60	0.12	0.09	0.45
Porzyme	79.0	79.4	79.7	78.8	58.4	36.3	33.2	64.9
P value ³	0.67	0.47	0.61	0.66	0.16	0.13	0.07	0.67
Releezyme	76.9	77.4	77.7	77.3	56.1	30.0	29.9	61.1
P value ³	0.01	0.01	0.01	0.09	0.01	0.01	0.01	0.08
Rovabio	80.0	80.7	80.7	79.9	59.5	38.1	36.5	64.4
P value ³	0.12	0.25	0.14	0.06	0.61	0.39	0.97	0.88
Roxazyme	79.6	81.1	80.3	79.9	59.1	38.8	39.1	63.3
P value ³	0.40	0.10	0.42	0.06	0.38	0.58	0.16	0.61
XPC yeast	79.6	80.1	80.3	79.4	57.9	39.0	36.4	65.9
P value ³	0.40	0.81	0.46	0.26	0.06	0.63	0.95	0.33
MODEL
P value ⁴	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.08
SE⁴	0.35	0.48	0.34	0.52	0.80	1.714	1.318	1.221
Wk-1⁵	76.9	76.0	77.6	75.4	55.3	31.4	28.5	70.6
Wk-3	79.2	80.1	79.8	79.3	58.9	36.2	35.8	61.9
Wk-5	80.5	82.4	81.2	81.8	60.0	42.0	39.1	59.4
P value ⁶	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01
SE⁶	0.18	0.25	0.18	0.27	0.42	0.93	0.69	0.64

¹ Apparent total tract digestibility calculated using indirect marker methodology. There were 16 to 18 individually fed pigs per dietary treatment [66].
² Allzyme SSF, 500 mg/kg (Alltech, Lexington, KY); BactoCel, 110 mg/kg (Lallemand Animal Nutrition, Milwaukee, WI); BioPlus 2B, 500 mg/kg (Chr. Hansen, Milwaukee, WI); Econase XT25, 150 mg/kg (AB Enzymes, Darmstadt, Germany); Hemicel, 500 mg/kg (ChemGen Corp., Gaithersburg, MD); Porzyme 9302, 250 mg/kg (Danisco Animal Nutrition, Marlborough, UK); Reelezyme 4 M, 500 mg/kg (Prince Agri Products Inc., Quincy, IL); Rovabio AP10, 500 mg/kg (Adisseo, Antony, France); Roxazyme G2G, 220 mg/kg (DSM Nutritional Products Inc., Parsippany, NJ); XPC Yeast, 2,000 mg/kg (Diamond V Mills Inc., Cedar Rapids, IA).
³^′P value^′ represents comparison of the feed additive to the control diet only.
⁴ Model P and SE value for overall diet effect.
⁵ Initial, wk-1, wk-3, and wk-5 BW of 11.88, 13.96, 23.23, and 33.26 kg, respectively.
⁶ Model P and SE value for week.

ISSN: 2049-1891