Nutritional Value and In Vitro Volatile Fatty Acid Production of Forage Grasses Cultivated Using Farmyard Manure and Desmodium intortum Intercropping in the Upper Blue Nile Basin, Ethiopia

Table 4

Results of Tukey’s tests exploring the interaction effects of forage grasses, fertilizer treatments, and year on GP24, IVOMD, and ME contents at the Guder watershed.

Factors			GP24	IVOMD	ME
Fertilizer sources	Forage grass	year	ml 0.2 g⁻¹ DM	%	MJ kg⁻¹
Control	Desho	2019	44.6^b	63.5^b	8.6^a
Desm	Desho	2019	32.0^f	52.0^d	7.1^c
FYM	Desho	2019	44.0^b	64.7^ab	8.6^a
Desm plus FYM	Desho	2019	47.0^a	67.1^a	8.9^a
Control	Desho	2018	34.4^def	56.5^c	7.7^b
Desm	Desho	2018	36.9^de	59.4^c	8.1^b
FYM	Desho	2018	36.5^de	57.3^c	7.7^b
Desm plus FYM	Desho	2018	37.0^d	58.6^c	7.9^b
Control	Napier	2019	26.0^g	50.2^de	7.0^c
Desm	Napier	2019	28.0^g	51.5^de	7.2^c
FYM	Napier	2019	34.0^ef	58.0^c	8.0^b
Desm plus FYM	Napier	2019	41.0^c	64.7^ab	8.9^a
Control	Napier	2018	25.4^g	48.6^e	6.9^c
Desm	Napier	2018	26.7^g	49.7^de	7.1^c
FYM	Napier	2018	27.9^g	50.8de	7.1^c
Desm plus FYM	Napier	2018	27.2^g	49.9^de	7.1^c
Overall mean			34.2	56.4	7.8
SEM			0.564	0.580	0.077
-value			<.0001	<.0001	<.0001
CV (%)			2.9	1.8	1.7

Means with different superscript letters in a column are significantly different (). GP24: 24-h gas production in ml 0.2 g⁻1 DM; IVOMD, in vitro organic matter digestibility in %, ME, metabolizable energy; NDF, neutral detergent fiber in %; TVFA, total volatile fatty acids in mmol L⁻1.