. 2021 Feb 15;5(2):txab029. doi: 10.1093/tas/txab029

Table 6.

Effects of dietary enzyme supplementation on improvement (%) of growth performance of pigs fed corn–soybean meal- or with corn distillers dried grains with solubles (cDDGS)-based diets from multivariable mixed models^a

	Enzyme type^b
	Single			Multi			Phytase^d			Pig BW^e			P value^f
Item, %	Xyl	Man	Pro	Car	Cock	SE^c	–	+	SE	Nursery	G-F	SE	ENZ	PHY	BW
Corn–SBM-based diets
Studies	4	6	2	8	3		16	6		10	13
Observations	6	13	6	20	9		45	9		22	32
ADG	2.48^abc	1.50^bc	7.29^**a	0.97^c	2.64^*ab	1.53	3.31^**	2.64	1.12	3.00^**	2.96^**	1.02	0.05	0.68	0.98
ADFI	–0.53	–0.50	0.51	–0.93	1.53	1.14	–0.44	0.47	0.84	–0.48	0.51	0.79	0.12	0.46	0.34
G:F	3.10	1.83	6.84^**	2.17	1.65	1.64	3.55^**	2.64	1.30	3.67^**	2.52^*	1.20	0.10	0.66	0.47
cDDGS-based diets
Studies	3	1	2	3	5		9	4		8	6
Observations	7	2	3	7	11		21	9		21	9
ADG	1.64	3.32^**	2.33	2.54	3.20^**	1.26	2.26^**	2.95^**	0.84	2.51	2.70^**	1.01	0.70	0.36	0.91
ADFI	–0.48	–0.42	1.77	1.25	0.45	1.27	0.52	0.51	0.87	0.68	0.36	1.01	0.60	0.99	0.84
G:F	3.01^**	2.82^**	1.35	0.97	2.82^**	1.17	2.12^**	2.26^**	0.76	2.62^*	1.77^*	0.83	0.73	0.86	0.44

^a– ^cLeast square means with a different superscript are significantly different (P < 0.05).

^**Mean values differ from 0 (P < 0.01).

^*Mean values differ from 0 (P < 0.05).

^aImprovement = (enzyme – control)/control × 100%.

^bDifferent combination of enzymes: single (Xyl = xylanase, Man = mannanase, or Pro = protease), and multi (Car = mixture of carbohydrases; Cock = cocktail mixture of protease plus single or multiple carbohydrases).

^cStandard error.

^dSupplementing carbohydrases/protease in the presence (+) or absence (–) of phytase in the diet.

^ePig BW = nursery (nursery pigs, <25 kg BW) and G–F (growing–finishing pigs, >25 kg BW).

^fProbability value of enzyme (ENZ), phytase (PHY), and pig BW (BW).