• Proceedings of the Korea Concrete Institute Conference
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• 1993.04a
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• pp.130-135
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• 1993

Twelve 1/2 scale modeled wall specimens were tested statically up to failure to investigate she shear behavior of concrete walls reinforced with welded wire fabric. major variables were spacing of reinforcing bars, type of reinforcing bar(rebar, welded sire fabric, knurling wire) and the existence of tied column type reinforcement

• Proceedings of the IEEK Conference
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• 1999.06a
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• pp.821-824
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• 1999

In distributed arithmetic-based architecture for an inner product between two length-N vectors, the size of the ROM increases exponentially with N. Moreover, the ROMs are generally the bottleneck of speed, especially when their sire is large. In this paper, a ROM size reduction technique for DA (Distributed Arithmetic) is proposed. The proposed method is based on modified OBC (Offset Binary Coding) and control circuit reduction technique. By simulations, it is shown that the use of the proposed technique can result in reduction in the number of gates up to 50%.

• Journal of the Korean Data and Information Science Society
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• v.18 no.3
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• pp.599-608
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• 2007

This study was conducted to establish an individual identification system in Hanwoo cattle. Samples of 33 Hanwoo individuals from Korean elite sire families were used. Thirteen major microsatellite markers were selected from alleles amplified, their frequencies, H(Heterozygosity) and PIC(Polymorphism Information Content) with Hardy-Weinberg equilibrium. Next, in order to evaluate the power of the markers selected on the individual animal identification, MP(Match probability) and R(Relatedness coefficient) with the percentage of animal incorrectly identified were computed. Finally nine microsatellite markers were selected and discussed.

• Asian-Australasian Journal of Animal Sciences
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• v.6 no.3
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• pp.433-440
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• 1993

Means and standard errors of 285 Taiwan's local chicken and 429 Single Comb White Leghorn pullets at 35 wk of age were: egg weight (g) $48.3{\pm}0.3$, $54.6{\pm}0.3$, shell index $73.39{\pm}0.26$, $73.20{\pm}0.18$, shell color $15.23{\pm}0.40$, $0.88{\pm}0.27$, shell whiteness $72.61{\pm}0.57$, $90.00{\pm}0.35$, shell strength ($kg/cm^2$) $3.77{\pm}0.07$, $3.35{\pm}0.05$, shell thickness (mm) $0.38{\pm}0.003$, $0.38{\pm}0.002$, Haugh units $85.26{\pm}0.50$, $91.81{\pm}0.38$ and yolk percent (%) $30.17{\pm}0.18$, $27.32{\pm}0.16$ respectively. Theestimated heritabiliities of Taiwan's local chicken based on sire and dam components of variance were as follows: egg weight 0.20, shell index 0.1, shell color 0.87, shell whiteness 0.79, shell strength 0.37, shell thickness 0.14, Haugh units 0.24 and yolk percent 0.16. Genetic correlations based on sire and dam components of variance and covariance were also estimated. Generically, the shell index was positively correlated with egg weight, shell strength and yolk percent, and egg weight was negatively correlated with shell thickness, Haugh unit and yolk percent.

• Asian-Australasian Journal of Animal Sciences
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• v.16 no.4
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• pp.489-493
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• 2003

Reproductive traits of sows are determined chiefly by the genetic background of the dam herself. Whether the breed of the serviced boars also contributes is not yet clear. A total of 8,946 litters of Landrace (L) sows from 68 farms were examined. Of these, 876, 1,260, and 6,810 litters were produced from natural mating with L, Yorkshire (Y), and Duroc (D) breeds, respectively. The birth litter size (BLS), weaning litter size (WLS), live born piglets (LBP), and survival rate % (SR), of every litter were recorded. A general linear-model procedure was followed to estimate the effects of boars' breed (B), parity (P) and B${\times}$P interaction on the reproductive traits of the sows. Results show that BLS, WLS, and LBP were all significantly (p<0.001) affected by B and P. SR% was significantly influenced by B but not by P. L sows crossbred with Y or purebred with L produced litters with higher BLS, WLS, and LBP values than those bred with D. Pure L breeding yielded litters with lower SR% than did crossbreeding with D, while the difference between SR% due to LY and that due to LD crossbreeding was not significant. The interaction of B with P was significant with respect to BLS, WLS, and LBP (p<0.001), but not SR%. No significant B effect on reproductive traits was measured in sows at their first parity; but at latter parities, LL or LY produced litters with similarly high BLS, WLS and LBP, which values were all significantly greater than those of LD litters. The breed of boar evidently affected the subsequent reproductive performance of L sows and this effect may be further manipulated by the parity effect. Breed differences in semen quality and the success of fetus development with different interactions of the genetic background with the uterus function of the sow that may contribute to these effects are discussed.

• Asian-Australasian Journal of Animal Sciences
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• v.30 no.9
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• pp.1358-1362
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• 2017

Objective: The objective of the present study was to compare growth performance of Berkshire purebred pigs (BB), Hereford (HB) and/or Tamworth (TB) sired Berkshire crossbred pigs reared in a hoop structure in two experiments. Methods: In the first experiment, BB was compared to TB while HB and TB were compared in the second. Body weights (BW) were recorded at 3 days of age and every 28 days from birth until 140 days of age. There was no significant difference between the BW of BB and TB, but HB was heavier than TB by 84 days of age. Least square means of average daily gain (ADG) were evaluated using one-way analysis of variance. Results: The mean parity (${\pm}$standard deviation) of the sows was $3.42{\pm}2.14$ and a total of 45 farrowing occurred from year 2012 to 2014. The mean number of total born, number born alive, number of mummies, and number weaned were $9.23{\pm}2.52$, $7.87{\pm}2.53$, $0.04{\pm}0.21$, and $5.94{\pm}2.74$, respectively. Parity did not have a significant effect on the growth performance of the pigs. For BB and TB, there was only one time frame in which there was a significant difference in the ADG: between 28 and 56 days of age. For HB and TB, the overall ADG of HB was significantly greater than the total ADG of TB. Conclusion: The breed of the sire did not affect the growth performance of the progeny between Berkshire purebreds and Tamworth${\times}$Berkshire crossbreds. The breed of the sire did have an effect between Hereford and Tamworth sired Berkshire crossbreds (p<0.05). The Hereford sired pigs were found to have increased growth performance compared to Tamworth sired.

• Korean Journal of Poultry Science
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• v.24 no.1
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• pp.1-8
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• 1997

The effects of genetic, physiological, and environmental factors(temperature, and type of watering system) on growth factors, accumulation of abdominal fat(AF), and the association between growth factors and AF of broilers and Athens-Canadian Randombred (ACRB) were studied in a series of nine trials. The final BW(6 or 7 wk) and 4-6 or 5-7 wk gain (G) were greater in groups raised at 21.1˚C than 26.7˚C. There was no consistent effects of environmental temperature on feed conversion ratio (FCR) although the FCR was significantly (P$\leq$.o5) reduced in 21. 1˚C group compared with the 26.7˚C group in two of six trials. The overall mean weight of AF relative to BW at 43 or 50 days of age were not significantly different between temperature groups: the means of AF of 21.1˚C and 26.7˚C groups were 1.81 and 1.78%, respectively. Environmental temperature had no consistent effect on the relationship between 4-6 or 5-7 wk C and 43 or 50 days AF, and 4-6 wk FCR and 43-days AF ; however, the association of 50 days AF with 5-7 wk FCR was highly significant in both temperature groups. The overall mean of correlation coefficient between FCR and AF was very low (r=.107). The waterer types did not significantly affect the AF. Generally, the effect of sex on the relationship between G and AF was not consistent in both sex groups. However, the association of AF with G was much greater in ACRB group compared with broiler group. The initial body weights (4 or S wk) was significantly (P$\leq$.001) correlated with AF in ACRB group, but not in the broiler groups. The effect of sire on AF was very high(P$\leq$.0001) in five of six trials.

• Asian-Australasian Journal of Animal Sciences
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• v.15 no.1
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• pp.11-15
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• 2002

The present investigation was undertaken to study the effects of non-genetic factors and association among replacement and lifetime production traits. The data on 542 Holstein Friesian cows maintained during 1975-98 at State Cattle Breeding Project, Sector III, Hisar, were utilized. The average sex-ratio, abnormal births, mortality, culling and replacement rates on total calf born and total female calf born basis were 51.62, 8.50, 17.52, 31.05, 22.78 and 51.41 per cent, respectively. The study revealed that a minimum of 4 to 5 progenies are required per cow over its lifetime to replace itself. It indicated that each cow should produce a minimum of 2 female calves during its life so as to replace herself before being lost. The least-squares means for productive herd life, longevity and lifetime production were $1439.32{\pm}87.64$ and $2419.18{\pm}8.25$ days and $11317.95{\pm}913.15kg$, respectively. The heritability estimates for all replacement traits were very low indicating that sire selection may bring no desirable change in these traits. Heritability estimates were $0.178{\pm}0.157$, $0.288{\pm}0.184$ and $0.096{\pm}0.195$ for corresponding lifetime production traits. Breeding values and ranking of sires were generated for replacement and lifetime production traits to estimate the rank correlations between these traits. Moderate desirable rank correlations were obtained between replacement rate and lifetime production traits indicating that sires proven on the basis of milk production are also expected to have better replacement rate.

• Asian-Australasian Journal of Animal Sciences
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• v.10 no.6
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• pp.581-586
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• 1997

The present study analysed the various productive and reproductive characteristics of 1/2 Pabna Milking Cows (PMC)-1/2 Sahiwal (S) and 1/4 PMC-3/4 S collected from the Pabna milkshed area at Baghabarighat, Sirajgonj, Bangladesh. The studied traits were birth weight (BWT), age at puberty (AP), number of services per conception (NSC), post partum heat period (PPHP), gestation period (GP), daily milk yield (DMY), lactational production (LP), lactation length (LL), fat percentage and solids-not-fat percentage (SNFP). Five individual Sahiwal sires were used for the upgrading of Pabna Milking Cows. The used data covered from 1987 to 1994. Least-squares analysis of variance showed that genetic group had a significant effect on BWT (P < 0.05), AP (p < 0.01), DMY (p < 0.01), LP (p < 0.001), LL (p < 0.05), FP (p < 0.05) and SNFP (p < 0.01). Genetic group had non-significant effect on NSC, GP and PPHP. The effect of sire was significant on BWT (p < 0.01), NSC (p < 0.01), LP (p < 0.05) and LL (p < 0.05). The AP, NSC, DMY, LP, LL and SNFP were higher in 1/2 PMC-1/2S cows; BWT and PPHP were higher in 1/4 PMC-3/4S but GP and FP were almost same in both genetic groups. From this study it may be concluded that production and use of 1/2 PMC-1/2S would seem more profitable for commercial milk production in the Bangladesh Milk Producers' Cooperative Union Limited (BMPCUL) area and at the same time emphasis should be given on rigorous sire selection.

• Korean Journal of Veterinary Research
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• v.40 no.2
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• pp.403-414
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• 2000

To improve the semen production, the selenium(Se) and vitamin E(Vit. E) were administrated into Hanwoo young sire for intensification an antioxidant system and the taurine were supplemented into semen extender for improving the semen characteristics. The 16 heads ranging from twenty to thirty two months of age were randomly assigned to control group, Se-admistrated group(Se-group), Vit. E-administrated group(Vit. E-Group) and Se and Vit. E administrated group(Se and Vit. E-group). Se and Vit. E dministrated 3 times every 30 days by intramuscular injection. The administration of Se, Vit. E, and Se and Vit. E didn't affect on semen volume, sperm concentration, and total sperm number among all groups(p>0.05). Adiministration of Se improved sperm motility and viability. Motility of Se-group and control were 26.01% and 19.20%, respectively(p<0.05). Viability of Se-group(47.07%) was higher than control group(35.73%), Vit. E group(36.55%)(p<0.05). The administration of Se and Vit. E didn't affect sperm capacitation and acrosome reaction. The 100mM taurine supplement into semen extender increased the motility of frozen/thawed semen in the Vit. E-group(p<0.05) and had a beneficial effects on decreasing abnormality of frozen/thawed semen in all groups(p<0.05). These results indicate that Se administration improve sperm motility and viability, and the taurine supplement into semen extender decrease abnormality in Hanwoo young sire.