Impact of two myostatin ( MSTN ) mutations on weight gain and lamb carcass classification in Norwegian White Sheep ( Ovis aries )

Table 2 Number of lambs per genotype group for various traits

c.960	GG			G(delG)		(delG)(delG)
c.2360	GG	AG	AA	GG	AG	GG
Weigth gain/d from birth to weaning (g)	78	216	114	105	106	19
Weaning weight (kg)	78	219	114	107	107	19
Carcass weight gain/d from birth to slaugther (g)	59	165	84	92	89	15
Carcass traits	59	167	84	94	89	15

Guanine is found at the mutated position in wild types, both in the c.960 and the c.2360 position, while (delG) and adenine (A) respectively, are found when the mutations are present. Carcass traits are carcass weight, carcass conformation class and carcass fat class.