Skip to main content

Table 3 Maximum likelihood estimates (and their standard errors) of the direct effects of CFU* and SCC* on MILK* in the three structural equation models (a, b, c)

From: Structural equation models to estimate risk of infection and tolerance to bovine mastitis

Models

(a)

 

(b)

 

(c)

 

unrelated SCC*, CFU*

SCC* influence CFU*

CFU* influence SCC*

 

CFU*

SCC*

CFU*

SCC*

CFU*

SCC*

CFU*

n.a.

n.a.

n.a.

0.12 (0.11)

n.a.

n.a.

SCC*

n.a.

n.a.

n.a.

n.a.

0.05 (0.06)

n.a.

MILK*

−3.08 (1.72)

−9.82** (2.61)

−2.91 (1.74)

−9.78** (2.62)

−2.93 (0.74)

−9.78** (2.62)

  1. n.a. = non applicable; CFU*, SCC* and MILK* = latent variables for log-transformed CFU, log-transformed SCC, and milk yield, respectively; **p < 0.05.
Back to article page

Genetics Selection Evolution

ISSN: 1297-9686