Effects of a multi-enzyme complex on growth performance, nutrient utilization and bone mineralization of meat duck

Table 3 Apparent availability of nutrients and AME of test diets ¹ , Exp. 2

Item	Enzyme	Energy %	DM ² , %	CP, %	EE, %	Ash, %	Ca, %	P , %	AME, kcal/kg
Treatment³
T1:PC	-	84.7^a	80.9^a	81.0^a	92.8^a	40.4^a	57.7^ab	51.1^ab	3254
T2:NC1	-	83.0^ab	78.3^ab	77.7^b	87.8^b	32.2^a	54.6^b	48.8^b	3184
T3:NC1	+	84.9^a	80.8^a	77.9^b	90.0^c	42.7^a	63.2^a	56.4^a	3244
T4:NC2	-	77.6^c	71.9^c	69.7^c	85.4^d	16.7^c	43.9^c	36.9^c	2952
T5:NC2	+	80.8^b	75.8^b	76.6^b	89.4^bc	25.4^b	64.6^a	45.4^bd	3069
SEM		1.00	0.65	0.91	0.49	1.73	2.63	1.40	20.1
P-Value		<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01
P-Value of factorial analysis⁴
NR⁵		<0.01	<0.01	<0.01	0.014	<0.01	0.014	<0.01	<0.01
Enzyme		<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01
NR × Enzyme		0.261	0.341	<0.01	0.123	0.772	0.059	0.766	0.201

^a,b,c,dMeans in the same row, values with the same lowercase letter superscripts mean no significant difference (P > 0.05), different lowercase letter mean significant difference (P < 0.05).
¹Data are means of 6 cages of 1 ducks.
²DM = dry matter; CP = crude protein; EE = ether extract; Ca = calcium; P = phosphorus; AME = apparent metabolizable energy.
³PC = positive control; NC1 = −70 kcal/kg, −2.0% digestible amino acids (DAA), −0.1 percentage point available P (avP), −0.1 percentage point Ca; NC2 = −100 kcal/kg, −2.5% DAA, −0.15 percentage point avP, −0.12 percentage point Ca.
⁴Using negative control treatments with or without enzyme supplementation.
⁵NR = Apparent metabolizable energy, digestible amino acid, available P and Ca reduction.

ISSN: 2049-1891