Animal Molecular Breeding, 2013, Vol.3, No.2, 4
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superiority of the best animals (as percent of the raw
mean) was 20.84 and 21.49%, respectively, under
BLUP2 and BLUP3 whereas corresponding values for
inferiority of the worst sires were -11.82 and -14.08%.
BLUP3 had shown more range in terms of superiority
and/or inferiority for animal solutions in comparison
to BLUP2. It was observed that top ranking sires for
6
WT were not same in BLUP1, BLUP2 and BLUP3.
The upper limits of sire for 6WT were increased from
0.8365
kg in the BLUP1 solution to 2.9025 kg in
BLUP2 and 2.9949 kg in BLUP3 whereas the lower
limits were reduced from 0.7304 kg in BLUP1 to
1.8118
kg in BLUP2 and 1.7834 kg in BLUP3.
1.7
First Six Monthly Greasy Fleece Yield (GFY
1
)
The estimated average GFY
1
of 0.95kg was used for
BLUP
1
,
BLUP
2
and BLUP
3
.
About half of the sires (48.2%)
were superior to the population mean under BLUP
1
.
The
corresponding values were much higher under BLUP
2
(60.9%)
and BLUP
3
(63.6%).
In BLUP
2
and BLUP
3
,
about
60.0%
animals were superior to the population mean.
The ranges of sire effects for GFY1 were -0.0575 to
0.0851, -0.1036
to 0.1429 and -0.1002 to 0.1279,
respectively under BLUP1, BLUP2 and BLUP3. The
range of sire effects was bit higher under BLUP3 and
BLUP2. The superiority of the best sires (as percent of the
raw mean) was 8.96, 15.04 and 13.46, respectively under
BLUP
1
,
BLUP
2
and BLUP
3
whereas corresponding values
of inferiority of the worst sires were -6.05, -10.91 and
-10.55.
The ranges of animal solutions were -0.1036 to
0.1730
and -0.1002 to 0.1442, respectively, under BLUP
2
and BLUP
3
.
About 60% animals were superior to the
population mean, the superiority of the best animals (as
percent of the raw mean) were 18.21 and 15.18%,
respectively, under BLUP
2
and BLUP
3
whereas
corresponding values for inferiority of the worst sires were
10.91
and -10.55% respectively. BLUP
3
had shown more
superiority for animal solutions in comparison to BLUP
2
,
but the lower limit was almost same in both the methods.
The upper limit of sire effects for 6WT was increased
from 0.0851kg in the BLUP1 solution to 0.1429 kg in
BLUP2 and 0.1279 in BLUP3 whereas the lower
limits were reduced from 0.0575 in BLUP1 to 0.1036
in BLUP2 and 0.1002 in BLUP3. It was observed that
the top ranking sire for GFY1 was same (i.e. CO 170)
under all the methods.
The higher percentages of superior sires to population mean
were under BLUP2 and BLUP3, for all the traits, might be
due to non-fitting of sire effect in the model. In BLUP2 and
BLUP3, sires were sorted out from the animal solutions and
then ranked. From these results, it can be summarized that
the range of sire effects was more under BLUP2 and
BLUP3. These findings are in close agreement with the
findings ofAhmed (2002) inAvikalin sheep.
1.8
Rank Correlation
All 110 sires were ranked on the basis of the solution
obtained under model 8 and univariate and multivariate
REML using animal models for BWT, WWT, 6WT and
GFY
1
.
The rank correlation coefficients for ‘among
methods within trait’ and ‘among traits within method’ are
presented in Table 17.
Table 17 Rank correlation coefficients
Trait
Model 8
Univariate
Multivariate
WWT 6WT
GFY1
BWT
WWT 6WT
GFY1
BWT
WWT 6WT
GFY
1
Mod 8
BWT
0.441
0.329
0.312
0.812
0.813
WWT
0.728
0.404
0.759
0.694
6
WT
0.467
0.759
0.748
GFY1
0.726
0.724
Univ.
BWT
0.425
0.272 0.131
0.997
WWT
0.790 0.363
0.951
6
WT
0.397
0.965
GFY1
0.967
Multi.
BWT
0.438
0.274
0.267
WWT
0.934
0.199
6
WT
0.124
Note: Figures in bold letters are ‘among methods within trait’rank correlation coefficients and figures in simple letter are ‘among traits withinmethod’rank correlation coefficients.