. 2015 Mar 31;94(4):673–680. doi: 10.3382/ps/pev022

Table 4.

Effect of coccidia challenge and natural betaine supplementation on apparent ileal amino acid (AA) digestibility (%) of broilers fed a wheat/soy based diet¹.

Coccidia challenge	Betaine	His	Ser	Arg	Gly	Asp	Glu	Thr	Ala	Pro	Lys	Tyr	Met	Val	Iso	Leu	Phe	Cys	Mean AA
No	-	81.5^a	82.4^a	86.0^ab	78.2^a	80.3^a	88.3^a	77.8^a	81.4^a	85.5^a	89.9^a	84.7^a	85.8^a	82.3^a	84.0^a	84.5^a	85.6^a	69.9^ab	82.8^a
No	+	81.3^a	82.3^a	86.9^a	77.8^a	80.4^a	88.2^a	77.0^a	80.7^a	85.4^a	90.3^a	84.0^a	86.5^a	81.7^a	83.3^a	83.8^a	85.3^a	71.8^a	82.7^a
Yes	-	61.5^c	61.7^c	71.4^c	56.0^c	59.6^c	73.7^c	54.1^c	55.6^c	68.4^c	74.5^b	63.2^c	66.2^c	58.9^c	61.0^c	63.2^c	66.4^c	45.8^c	62.4^c
Yes	+	75.8^b	75.9^b	81.8^b	72.0^b	73.9^b	83.6^b	70.6^b	72.0^b	80.7^b	85.4^a	77.0^b	79.0^b	74.3^b	75.6^b	76.9^b	79.1^b	65.0^b	76.4^b
SEM²		1.3	1.1	1.2	1.4	1.1	0.9	1.2	1.2	1.1	1.3	1.1	1.5	1.1	1.1	1.0	0.9	1.6	1.1
Main Effect
Coccidia
No		81.4	82.4	86.4	78.0	80.4	88.2	77.4	81.1	85.4	90.1	84.3	86.2	82.0	83.6	84.1	85.4	70.8	82.8
Yes		68.6	68.8	76.6	64.0	66.7	78.6	62.3	63.8	74.6	79.9	70.1	72.6	66.6	68.3	70.0	72.8	55.4	69.4
Betaine
−		71.5	72.0	78.7	67.1	69.9	81.0	65.9	68.5	77.0	82.2	73.9	76.0	70.6	72.5	73.8	76.0	57.8	72.6
+		78.5	79.1	84.3	74.9	77.2	85.9	73.8	76.3	83.0	87.8	80.5	82.8	78.0	79.4	80.4	82.2	68.4	79.6
P-value
Coccidia challenge (CC)		.0001	.0001	.0001	.0001	.0001	.0001	.0001	.0001	.0001	.0001	.0001	.0001	.0001	.0001	.0001	.0001	.0001	.0001
Betaine supplementation (BS)		.0001	.0001	.0001	.0001	.0001	.0001	.0001	.0001	.0001	.0003	.0001	.0001	.0001	.0001	.0001	.0001	.0001	.0001
CC × BS		.0001	.0001	.0005	.0001	.0001	.0001	.0001	.0001	.0001	.0006	.0001	.0001	.0001	.0001	.0001	.0001	.0001	.0001

^a–cMeans in a column not sharing a common superscript are different (P < 0.05).

¹Each value represents the mean of 8 replicates (8 birds per replicate).

²Pooled standard error of the mean.