Effects of fermented herbal tea residue on meat quality, rumen fermentation parameters and microbes of black goats

AMB Express

Table 3 Effects of FHTR on the ammonia nitrogen (NH₃–N) and volatile fatty acids (VFA) of rumen samples of Chuanzhong black goats

Items	Treatment		SEM	P-value
Items	CON	L30	SEM	P-value
pH	6.62	6.37	0.51	0.007
NH₃–N (mg/dL)	13.90	17.74	1.97	0.001
VFA (mmol/L)
Acetic acid	52.36	66.06	3.16	0.024
Propionic acid	12.34	14.06	0.48	0.069
Isobutyric acid	0.89	0.94	0.31	0.414
Butyric acid	6.16	7.84	0.38	0.019
Isovaleric acid	0.95	1.09	0.58	0.235
Valeric acid	0.47	0.58	0.29	0.040
Acetic acid/propionic acid	4.24	4.68	0.10	0.026
T-VFA	73.14	90.57	14.98	0.016

CON 0% fermented herbal tea residue silage, L30 30% fermented herbal tea residue silage, pH pH value, VFA volatile fatty acids, NH₃–N ammonia nitrogen, AA/PA acetic acid/propionic acid, T-VFA total volatile fatty acids, SEM standard error of means