Determination of the available energy values and amino acid digestibility of Flammulina velutipes stem waste and its effects on carcass trait and meat quality fed to growing-finishing pigs

Table 7 Effects of dietary Flammulina velutipes stem waste inclusion on apparent total tract digestibility of nutrients of growing-finishing pigs (%, Exp. 3)

Item	Control	2.5% FVS	5% FVS	SEM	P-value
Body weight 50 to 75 kg
Dry matter	83.6	84.0	82.2	0.5	0.067
Organic matter	87.1^a	87.3^a	85.7^b	0.4	0.035
Gross energy	83.6^ab	84.2^a	82.2^b	0.5	0.048
Crude protein	74.4	75.2	72.2	0.8	0.066
Ether extract	16.0^b	50.8^a	49.6^a	2.8	<0.001
Neutral detergent fiber	45.2^b	56.6^a	62.9^a	2.3	0.001
Acid detergent fiber	36.8^b	55.4^a	61.9^a	2.4	<0.001
Body weight 75 to 100 kg
Dry matter	85.2^a	84.9^a	82.2^b	0.6	0.010
Organic matter	88.3^a	88.1^a	85.8^b	0.5	0.015
Gross energy	85.1^a	85.2^a	82.3^b	0.6	0.014
Crude protein	78.4^a	77.7^a	68.7^b	1.4	0.001
Ether extract	34.4^c	61.4^a	49.4^b	1.6	<0.001
Neutral detergent fiber	55.9	52.9	55.1	2.7	0.728
Acid detergent fiber	53.0	55.8	57.7	3.2	0.594
Body weight 100 to 135 kg
Dry matter	86.6^a	85.1^b	85.1^b	0.3	0.003
Organic matter	89.5^a	88.2^b	88.4^b	0.2	0.003
Gross energy	86.3^a	84.9^b	85.0^b	0.3	0.009
Crude protein	78.1	78.9	78.3	0.7	0.709
Ether extract	88.1^a	51.1^b	51.1^b	1.2	<0.001
Neutral detergent fiber	57.1^c	61.9^b	66.8^a	1.2	<0.001
Acid detergent fiber	59.3	61.9	63.0	1.1	0.111

^a-cLeast squares means within different superscripts differ (P<0.05). FVS Flammulina velutipes stem waste, SEM Standard error of the mean

ISSN: 2049-1891