. 2022 Apr 13;12(8):1007. doi: 10.3390/ani12081007

Table 3.

Growth performance (day 21–day 35), relative weight and length of gastrointestinal (GI) tract, and intestinal content viscosity of broilers (n = 10).

	Dietary Treatments ¹				SEM ²	p-Value
Item	Control	LA	LAR	LAE	SEM ²	p-Value
Growth performance
Initial body weight (g)	809.0	759.1	741.5	739.1	28.62	0.294
Final body weight (g)	1823 ^a	1631 ^b	1706 ^a,b	1644 ^b	42.4	0.011
ADG ³ (g/day)	78.9 ^a	67.6 ^b	74.8 ^a,b	70.4 ^a,b	2.82	0.039
ADFI ⁴ (g/pen)	130	126	125	127	3.1	0.523
Feed conversion ratio	1.70 ^b	1.89 ^a	1.82 ^a,b	1.81 ^a,b	0.038	0.012
Relative weight of GI tract (g/kg BW)
Crop	2.99	3.66	3.43	3.92	0.143	0.125
Gizzard	17.3 ^a	15.1 ^b	14.9 ^b	14.9 ^b	0.32	0.013
Pancreas	2.32	2.52	2.39	2.44	0.057	0.664
Liver	24.0	22.4	22.9	22.9	0.31	0.285
Duodenum	5.58	6.47	6.56	6.20	0.164	0.139
Jejunum	11.1	12.6	12.9	11.9	0.30	0.164
Ileum	9.37 ^b	11.5 ^a	11.4 ^a	10.6 ^a,b	0.27	0.012
Caecum ⁵	5.12 ^c	7.75 ^a	7.25 ^a,b	6.06 ^b,c	0.279	0.001
Relative length of GI tract (cm/kg BW)
Duodenum	17.4	19.2	18.5	19.2	0.33	0.190
Jejunum	41.1 ^b	48.3 ^a	46.0 ^a	45.3 ^a	0.80	0.010
Ileum	43.8 ^b	56.3 ^a	54.2 ^a	54.2 ^a	0.99	<0.001
Caecum ⁴	11.8 ^b	14.6 ^a	13.2 ^a,b	14.7 ^a	0.31	0.001
Content viscosity (cP)
Duodenum + jejunum	4.28	5.10	5.17	4.60	0.153	0.118
Ileum	6.38 ^b	10.92 ^a	11.39 ^a	6.84 ^b	0.542	<0.001

¹ Control, corn–soybean basal diet; LA, basal diet plus 15% L. digitata; LAR, basal diet plus 15% L. digitata + 0.005% Rovabio^® Excel AP; LAE, basal diet plus 15% L. digitata + 0.01% recombinant CAZyme. ² SEM, standard error of the mean. ³ ADG, average daily gain. ⁴ ADFI, average daily feed intake. ⁵ Cecum: weight of two ceca. ^a,b,c Different superscript letters within a row indicate a significant difference (p < 0.05).