. 2017 Aug 25;55(1):28–37. doi: 10.2141/jpsa.0170087

Table 5. Effect of replacing methionine with different levels of betaine and choline (mg/kg) on organ weight and total liver lipid concentration in broiler (Trial 2).

	Treatments
Parameter	Control-	Control+	140Chol+ 160Bet	280Chol+ 160Bet	140Chol+ 320Bet	280Chol+ 320Bet	SEM	P-value
Feathers removed^*	92.7	93.7	93.4	94.5	93.0	93.3	0.48	0.9397
Carcass	68.7	67.4	71.6	71.4	70.2	69.8	0.75	0.5828
Breast	23.8	24.6	26.1	26.0	25.2	25.1	0.30	0.2110
Thigh + drumstick	20.1	19.8	19.7	20.0	20.0	19.8	0.10	0.8597
Back	24.4	23.2	24.6	24.3	24.3	24.8	0.24	0.5115
Digestive system	13.4	13.2	12.2	13.2	12.7	13.7	0.18	0.2726
Gizzard	3.00^bc	3.03^bc	2.78^c	3.21^ab	3.00^bc	3.44^a	0.056	0.0208
Proventriculus	0.46	0.5	0.48	0.5	0.48	0.53	0.013	0.6830
Liver	2.63	2.65	2.4	2.38	2.55	2.69	0.037	0.0503
Spleen	0.14	0.12	0.1	0.12	0.14	0.12	0.005	0.1749
Heart	0.51	0.48	0.5	0.52	0.49	0.51	0.008	0.6675
Bursa of Fabricius	0.08^ab	0.09^ab	0.07^b	0.06^b	0.11^a	0.11^a	0.005	0.0068
Total lipid content of liver (%)	24.4^a	25.9^a	22.6^a	14.8^b	21.7^a	21.0^a	0.97	0.0153

Relative weight to live body weight for feathers removed, and carcass weight and relative weight to carcass weight for others; Chol, choline; Bet, betaine.

^a–c Mean values within a row with different superscripts differ significantly (P<0.05). Values represent 4 replicates of 2 birds per replicate for each treatment.