. 2021 Jan 29;100(4):101033. doi: 10.1016/j.psj.2021.101033

Table 3.

Processing weights and yields of 5 strains of broilers fed control or amino acid–reduced diet (with digestible lysine, TSAA, and threonine being 20% lower than the control diet) on day 42.

Strain	Diet	Day 42 processing weights (g)								Day 42 processing yields (% of BW)
Strain	Diet	BW	Carcass	Fat pad	Breast	Tender	Wing	Drum-stick	Thigh	Carcass	Fat pad	Breast	Tender	Wing	Drum-stick	Thigh
Strain 1		2,852^a,b	1,987^a,b	43.8^a	548	109	214^b	269^b	335^a,b	69.6^b	1.55	19.2^b	3.84^b,c	7.50^b	9.41^b	11.73^b,c
Strain 2		2,796^b,c	1,975^a,b	44.3^a	580	110	210^b	250^c	324^b	70.6^a	1.55	20.7^a	3.97^a,b	7.51^b	8.91^c	11.49^c
Strain 3		2,979^a	2,076^a	44.0^a	523	110	231^a	289^a	357^a	69.7^b	1.50	17.6^c	3.72^c,d	7.77^a	9.68^a,b	11.98^a,b
Strain 4		2,836^a,b	1,972^a,b	44.4^a	506	103	217^b	279^a,b	349^a	69.5^b	1.57	17.8^c	3.55^d	7.68^a,b	9.81^a	12.29^a
Strain 5		2,664^c	1,883^b	38.1^b	557	109	198^c	240^c	312^b	70.6^a	1.46	20.8^a	4.11^a	7.46^b	9.01^c	11.74^b,c
SEM		36.7	26.4	1.25	9.26	2.37	2.65	4.34	5.68	0.22	0.041	0.21	0.051	0.058	0.091	0.107
	Control	2,943^a	2,071^a	37.7^b	582	114^a	224^a	278^a	346^a	70.4^a	1.30^b	19.8^a	3.89^a	7.61	9.44	11.73^b
	Reduced	2,707^b	1,886^b	48.1^a	504	103^b	205^b	252^b	325^b	69.7^b	1.75^a	18.7^b	3.79^b	7.56	9.29	11.97^a
	SEM	23.2	16.7	0.79	5.86	1.50	1.68	2.75	3.59	0.14	0.026	0.13	0.032	0.036	0.067	0.068
Strain 1	Control	2,913	2,041	38.9	566^a,b,c	113	221	282	338	70.0	1.33	19.4	3.87	7.59	9.68	11.60
Strain 1	Reduced	2,790	1,932	48.7	529^c,d,e	106	207	255	331	69.2	1.76	18.9	3.81	7.41	9.14	11.85
Strain 2	Control	2,864	2,032	36.2	605^a,b	115	217	256	328	70.9	1.28	21.1	4.01	7.59	8.98	11.48
Strain 2	Reduced	2,727	1,918	52.3	555^b,c,d	106	203	243	320	70.3	1.81	20.3	3.93	7.42	8.85	11.51
Strain 3	Control	3,089	2,166	39.6	560^a,b,c	115	241	303	373	70.0	1.30	18.0	3.72	7.79	9.78	12.05
Strain 3	Reduced	2,868	1,986	48.4	487^e,f	106	222	275	341	69.3	1.70	17.1	3.71	7.74	9.58	11.91
Strain 4	Control	3,014	2,102	40.0	560^a,b,c	110	229	294	365	69.7	1.34	18.5	3.65	7.62	9.74	12.06
Strain 4	Reduced	2,657	1,842	48.8	452^f	97.1	205	263	333	69.3	1.80	17.0	3.45	7.74	9.89	12.53
Strain 5	Control	2,836	2,015	33.8	617^a	118	210	256	325	71.1	1.23	21.7	4.17	7.44	9.03	11.46
Strain 5	Reduced	2,493	1,752	42.4	497^d,e,f	101	186	224	300	70.2	1.69	19.9	4.05	7.48	8.98	12.03
SEM		51.9	37.3	1.77	13.1	3.35	3.74	6.14	8.03	0.32	0.058	0.30	0.073	0.082	0.129	0.151
P-value	Strain	<0.0001	0.0001	0.003	<0.0001	0.191	<0.0001	<0.0001	<0.0001	0.0002	0.322	<0.0001	<0.0001	0.0009	<0.0001	<0.0001
	Diet	<0.0001	<0.0001	0.016	<0.0001	<0.0001	<0.0001	<0.0001	0.0001	0.0008	<0.0001	<0.0001	0.043	0.342	0.067	0.016
	Strain × Diet	0.072	0.099	0.172	0.008	0.562	0.454	0.594	0.339	0.924	0.808	0.107	0.790	0.290	0.121	0.122

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

Eight replications/treatment, 4 subsamples/replication/treatment.