SNP-based breeding for broiler resistance to ascites and evaluation of correlated production traits

Lee, Katie Pepper; Anthony, Nicholas B.; Orlowski, Sara K.; Rhoads, Douglas D.

doi:10.1186/s41065-022-00228-x

Hereditas

Table 4 Deboned parts characteristics from the replicate floor trials

From: SNP-based breeding for broiler resistance to ascites and evaluation of correlated production traits

Item	n	Wings		Breast fillets		Tenders		Thighs		Drumsticks
Item	n	Weight, kg	Yield¹, %	Weight, kg	Yield, %	Weight, kg	Yield, %	Weight, kg	Yield, %	Weight, kg	Yield, %
Main effect of trial
Floor1	453	223.2^a	7.947	431.6	15.33^b	112.2	4.001^b	380.4^a	13.47^a	271.9^a	9.653^a
Floor2	415	216.6^b	7.936	432.4	15.79^a	111.2	4.080^a	362.7^b	13.25^b	260.3^b	9.537^b
SEM		1.5	0.020	3.7	0.07	0.8	0.020	3.3	0.05	2.1	0.027
Main effect of genetic line
MAS	439	221.2	7.928	435.9	15.57	114.0^a	4.091^a	376.3^a	13.41	269.8^a	9.649^a
REL	429	218.9	7.956	427.9	15.54	109.5^b	3.985^b	367.5^b	13.31	262.9^b	9.546^b
SEM		1.5	0.020	3.7	0.07	0.8	0.018	3.3	0.05	2.1	0.027
Main effect of sex
Male	395	247.5^a	7.943	483.2^a	15.49	121.8^a	3.907^b	427.6^a	13.71^a	302.7^a	9.723^a
Female	473	197.2^b	7.940	389.1^b	15.60	103.3^b	4.149^a	325.4^b	13.07^b	236.2^b	9.494^b
SEM		1.0	0.019	3.2	0.07	0.7	0.018	2.5	0.05	1.5	0.027
Trial × Line
Floor1 × MAS	233	224.1	7.925	436.7	15.37	114.4	4.057	383.5	13.53	274.7	9.717
Floor1 × REL	220	222.2	7.970	426.1	15.29	110.0	3.941	377.4	13.39	269.1	9.586
Floor2 × MAS	206	217.9	7.932	435.0	15.79	113.5	4.130	368.2	13.27	264.1	9.571
Floor2 × REL	209	215.4	7.940	429.8	15.80	108.9	4.031	357.1	13.22	256.5	9.504
SEM		2.2	0.029	5.3	0.10	1.2	0.029	4.7	0.08	3.0	0.040
Trial × Sex
Floor1 × Male	204	252.1	7.938	486.7	15.34	123.6^a	3.899^c	439.6^a	13.85	310.2^a	9.779
Floor1 × Female	249	199.4	7.954	386.2	15.33	102.7^c	4.084^b	330.9^c	13.15	240.0^c	9.550
Floor2 × Male	191	242.5	7.949	479.4	15.66	119.9^b	3.915^c	414.8^b	13.57	294.7^b	9.662
Floor2 × Female	224	194.7	7.925	392.3	15.90	104.0^c	4.220^a	319.3^d	12.97	231.9^d	9.433
SEM		1.3	0.029	4.7	0.10	1.1	0.027	3.6	0.08	2.0	0.038
Line × Sex
MAS × Male	209	248.8	7.911	489.8^a	15.53	124.2	3.944	434.2^a	13.79	306.8^a	9.765
MAS × Female	230	196.3	7.944	387.0^b	15.60	104.7	4.225	323.7^c	13.07	236.4^c	9.544
REL × Male	186	246.0	7.980	475.8^a	15.45	119.4	3.865	420.6^b	13.63	298.5^b	9.675
REL × Female	243	198.0	7.937	391.0^b	15.61	101.8	4.076	326.7^c	13.06	235.7^c	9.447
SEM		1.7	0.028	5.0	0.11	1.1	0.026	3.7	0.08	2.3	0.041
P-values
Trial		< 0.001	0.630	0.834	< 0.001	0.296	< 0.001	< 0.001	< 0.001	< 0.001	0.002
Genetic line		0.840	0.286	0.324	0.665	< 0.001	< 0.001	0.003	0.258	< 0.001	0.016
Sex		< 0.001	0.773	< 0.001	0.180	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
Trial × Line		0.085	0.393	0.698	0.532	0.924	0.631	0.404	0.897	0.564	0.563
Trial × Sex		0.053	0.558	0.079	0.210	0.010	0.014	0.025	0.481	0.032	0.903
Line × Sex		0.213	0.185	0.050	0.538	0.339	0.127	0.006	0.287	0.032	0.842
Trial × Line × Sex		0.245	0.073	0.568	0.441	0.725	0.668	0.607	0.251	0.906	0.827

Abbreviations: Floor1 Floor cohort 1, Floor2 Floor cohort 2, MAS marker-assisted selection line, REL Relaxed (control) line
1: Yields calculated based on back-dock live weight
Item values with different superscript letters in a column indicate significant difference (p < 0.05) in that trait or effect

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ISSN: 1601-5223

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