Table 5
Distribution of records for body weight traits in different inbreeding classes of animals grouped by the type of birth and born between 1994 and 2011

Birth type	Inbreeding class		Traits (kg)
Birth type	Inbreeding class	BW		WW		6 MW		9 MW		YW
		N	Mean ± SE	N	Mean ± SE	N	Mean ± SE	N	Mean ± SE	N	Mean ± SE
	F= 0	1344	3.96 ± 0.47^a	681	22.44 ± 4.92^a	281	34.66 ± 8.13^a	33	39.07 ± 8.29^b	12	50.20 ± 0.01^a
Single	0< F<0.05	6820	3.87 ± 0.68^a	4476	21.98 ± 4.59^a	3317	36.73 ± 7.47^a	2198	45.78 ± 6.66^a	1474	52.35 ± 8.73^a
	F ≥ 0.05	11	3.85 ± 0.65^a	6	22.37 ± 3.36^a	6	36.22 ± 5.51^a	6	46.57 ± 3.36^a	4	52.60 ± 3.99^a
	F= 0	192	3.33 ± 0.46^a	121	22.61 ± 4.19^a	67	34.41 ± 5.83b	-	-	-	-
Twin	0< F<0.05	1880	2.96 ± 0.77^b	1427	22.55 ± 3.92^a	1186	36.71 ± 6.24^ab	897	44.76 ± 5.77^b	524	53.65 ± 5.28^b
	F ≥ 0.05	8	2.59 ± 0.83^c	4	18.98 ± 1.69^b	5	39.00 ± 2.53^a	5	48.98 ± 0.67^a	5	57.56 ± 1.28^a