Growth performance, caecal microbiome profile, short-chain fatty acids, and litter characteristics in response to placement on reused litter and combined threonine, arginine and glutamine supplementation to juvenile male broiler chickens

Table 2 Growth performance of broilers fed C or TAG diets and placed as day-old on either clean or reused litter over 21 days

Litter	Diet	BWG, g	FI, g	FCR, g/g	CPC*
Clean	C	738	1044	1.447	0.298
Clean	TAG	663	914	1.417	0.319
Reused	C	779	1028	1.349	0.278
	TAG	708	947	1.371	0.308
	SED	28.8	21.7	0.051	0.011
Means for main effect of litter
Clean		700^a	979	1.432	0.308
Reused		743^b	988	1.360	0.293
	SED	20.4	15.4	0.036	0.008
Means for main effect of diet
	C	758^b	1036^b	1.398	0.288^a
	TAG	685^a	931^a	1.394	0.313^b
	SED	20.4	15.4	0.036	0.008
P-values for main effects and interaction
Litter		0.047	0.581	0.056	0.068
Diet		0.002	< 0.001	0.902	0.004
Litter × diet		0.924	0.134	0.483	0.544

BWG Body weight gain; FI Feed intake; FCR Feed conversion ratio; CPC* Crude protein conversion = FI (kg) × CP content diet (g/kg)/BWG (g); C Control diets; TAG Threonine, arginine and glutamine supplemented diets; SED Standard error of difference; Means within the same column with different superscripts differ at P < 0.05; Simple means represent 8 pens of 10 birds per pen

ISSN: 2524-4671