In Japanese quail at the age of 5 to 26 weeks we tested the effects of
dietary dried manure included in feed mixes with 20% and 25% crude pr
otein contents as exerted on quail performance. Dietary quail manure d
ecreased egg production by 4.7 % (P > 0.05) at the lower content of cr
ude protein, and by 11.1 % (P < 0.01) at the higher content of crude p
rotein. Feed consumption increased by 10.8 % (P < 0.01) and feed conve
rsion was worse by 16.5 % (P < 0.05) at the lower content and by 3.6 %
(P > 0.05) and 21.9 % (P < 0.01) at the higher content of dietary cru
de protein The consumption of concentrate mixture was lower by 11.3 %
and 17.1 %, respectively, in both groups with dietary manure, and feed
conversion was better by 9.1 % and 1.5 %, resp. The production of fre
sh manure was higher by 36.6 % and 28.9 % in both groups. Feeding of d
ried manure did not influence the live weight of quail, but the mortal
ity rate increased. In comparison with the group with the lower dietar
y content of crude protein (20 %), the administration of a feed mix wi
th the higher content of crude protein (25 %) did not have any larger
effects on quail performance. It can be concluded that it is possible
to feed dried quail manure (20 %) in feed mix with the 20% content of
crude nitrogen without a significant decrease in the performance of Ja
panese quail.