Table 4. Effect of spraying AN extract on litter NH₃-N content in broiler’s litter¹

Items (%)	AN0	AN2	AN4	SE	P-value
NH3-N
d 7	384.20a	354.20b	325.00c	3.636	<0.001
d 14	406.80a	379.43b	301.88c	3.361	<0.001
d 21	434.20a	376.40b	328.60c	3.691	<0.001
d 28	463.20a	393.20b	344.00c	2.743	<0.001

AN0, basal rice husk + 10 mL; AN2, basal rice husk + 2% Abeliophyllum distichum Nakai; AN4, basal rice husk + 4% Abeliophyllum distichum Nakai; AN, Abeliophyllum distichum Nakai; NH₃-N, ammonia nitrogen; SE, standard error.
Means within column with different superscripts differ significantly (P<0.05).