The potential for gene-editing to increase muscle growth in pigs: experiences with editing myostatin

Table 7 Carcass characteristics of myostatin heterozygous and wild type pigs

Item	MSTN^+/+1		MSTN^±1		SEM	P-value
	IGF2 G.²	IGF2 A.²	IGF2 G	IGF2 A		MSTN	IGF2	MSTN x IGF2
Pigs, n	13	11	10	10
Ending live weight, kg	124.28	127.25	127.84	128.73	5.674	0.50	0.62	0.78
Dressing percentage, %	76.1	75.7	76.8	76.9	0.39	< 0.01	0.64	0.43
Hot carcass weight, kg	93.9	96.0	97.6	98.5	4.47	0.33	0.64	0.85
Loin muscle area, cm²	49.49	54.14	63.45	62.21	1.786	< 0.01	0.33	0.09
10th rib back fat depth, cm	2.25	2.10	2.03	1.98	0.211	0.41	0.63	0.82
Estimated carcass lean, %	52.88	54.43	56.94	56.21	1.207	0.02	0.73	0.33

¹MSTN^+/+ = homozygous wild-type myostatin, MSTN^± = one edited myostatin allele
²IGF2 paternal G allele (IGF2 G) or paternal A allele (IGF2 A)

ISSN: 2662-4044