Genetic relationship between purebred and crossbred sow longevity

Table 4 Relative economic emphasis of swine reproductive traits

Trait^c	Economic Value per Trait Unit (v_i)	Genetic Standard Deviation (σ_g)	Standardized Economic Weight (E_i)^a	Relative Emphasis (E)^b
NBA	$27.93	0.70	19.55	0.049
NW	$38.57	0.28	10.91	0.027
LW	$0.45	8.07	3.63	0.009
WTE	$1.90	1.05	2.00	0.005
LBW	$0.45	2.92	1.32	0.003
NBALF	$27.93	12.90	360.29	0.906

^aE_i = v_i * σ_g
^bE = E_i / Σ₆ (E_i)
^c NBA Number born alive, NW number weaned, LW litter weaning weight, WTE wean to estrus interval, LBW litter birth weight, NBALF lifetime born alive

ISSN: 2049-1891