Estimation of genetic and phenotypic parameters in a closed ...
Estimation of genetic and phenotypic parameters in a closed ...
Estimation of genetic and phenotypic parameters in a closed ...
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Table 2. Summary <strong>of</strong> herltabllity<br />
estlmates <strong>of</strong> carcass measurements <strong>and</strong> age to rnarket weight traits<br />
Tralts<br />
h2<br />
Mechod <strong>of</strong> estimatlon<br />
No. <strong>of</strong> observatlons<br />
Refe¡ence<br />
Carcass length 0.52<br />
0.78r{.10<br />
0.87<br />
0 .50+0 . 16<br />
0.464n.04<br />
0.64<br />
Pooled from paternal, maternalhalf-slb<br />
<strong>and</strong> fu11-slb correlaLLon<br />
Paternal half-slb correlatlon<br />
il il tr il<br />
ttililtt<br />
tr tr It tt<br />
Pooled fr<strong>of</strong>l paternal- half-sib<br />
correlatlon <strong>and</strong> parent-<strong>of</strong>fspr<strong>in</strong>g regressfon<br />
53r<br />
1,936<br />
2,296<br />
7,275<br />
44,969<br />
2,031<br />
Enfleld <strong>and</strong> llhatley (1.961)<br />
Smlth et a1. (1962)<br />
SmlLh <strong>and</strong> Ross (1965)<br />
Roy et al. (1968)<br />
Flock (1970)<br />
Fahmy <strong>and</strong> Bernard (f970)<br />
Backfat thlckness<br />
. Mean<br />
Shoulder<br />
Mid-back<br />
Loln<br />
Mean<br />
Shoulder<br />
Rtb<br />
L<strong>of</strong>n<br />
Mean<br />
Mean<br />
Mean<br />
0.63<br />
0,62r{.10<br />
o . 73-rc.10<br />
0.71+0.10<br />
0.74<br />
0.26r{.11<br />
0.43+O.13<br />
0.zsfl.L2<br />
0.35r{.12<br />
0.69-rc.17<br />
0.s3<br />
Pooled from paternal, maternal halfslb<br />
<strong>and</strong> fu11-s1b correlatlon<br />
Paternal half-slb correlatlon<br />
tr[[<br />
llItil<br />
ll il tt<br />
il[il<br />
lrltil<br />
ll il il<br />
llrfil<br />
531<br />
7,936<br />
2,296<br />
1 ,191<br />
585<br />
650<br />
Enf íel.d <strong>and</strong> h¡hatley (1961.)<br />
Smlrh et al. (1962)<br />
Smlth <strong>and</strong> Ross (1965)<br />
Roy et al. (1968)<br />
Jensen et al. (1967)<br />
Arganosa et al. (1969)<br />
. . Contlnuetl