• Title/Summary/Keyword: reproduction accuracy

Search Result 103, Processing Time 0.021 seconds

Individual-breed Assignment Analysis in Swine Populations by Using Microsatellite Markers

  • Fan, B.;Chen, Y.Z.;Moran, C.;Zhao, S.H;Liu, B.;Yu, M.;Zhu, M.J.;Xiong, T.A.;Li, K.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.18 no.11
    • /
    • pp.1529-1534
    • /
    • 2005
  • Individual-breed assignments were implemented in six swine populations using twenty six microsatellites recommended by the Food and Agriculture Organization and the International Society for Animal Genetics (FAO-ISAG). Most microsatellites exhibited high polymorphisms as shown by the number of alleles and the polymorphism information content. The assignment accuracy per locus obtained by using the Bayesian method ranged from 33.33% (CGA) to 68.47% (S0068), and the accumulated assignment accuracy of the top ten loci combination added up to 96.40%. The assignment power of microsatellites based on the Bayesian method had positive correlations with the number of alleles and the gene differential coefficient ($G_{st}$) per locus, while it has no relationship to genetic heterozygosity, polymorphism information content per locus and the exclusion probabilities under case II and case III. The percentage of corrected assignment was highest for the Bayesian method, followed by the gene frequency and distancebased methods. The assignment efficiency of microsatellites rose with increase in the number of loci used, and it can reach 98% when using a ten-locus combination. This indicated that such a set of ten microsatellites is sufficient for breed verification purposes.

Comparison of genomic predictions for carcass and reproduction traits in Berkshire, Duroc and Yorkshire populations in Korea

  • Iqbal, Asif;Choi, Tae-Jeong;Kim, You-Sam;Lee, Yun-Mi;Alam, M. Zahangir;Jung, Jong-Hyun;Choe, Ho-Sung;Kim, Jong-Joo
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.32 no.11
    • /
    • pp.1657-1663
    • /
    • 2019
  • Objective: A genome-based best linear unbiased prediction (GBLUP) method was applied to evaluate accuracies of genomic estimated breeding value (GEBV) of carcass and reproductive traits in Berkshire, Duroc and Yorkshire populations in Korean swine breeding farms. Methods: The data comprised a total of 1,870, 696, and 1,723 genotyped pigs belonging to Berkshire, Duroc and Yorkshire breeds, respectively. Reference populations for carcass traits consisted of 888 Berkshire, 466 Duroc, and 1,208 Yorkshire pigs, and those for reproductive traits comprised 210, 154, and 890 dams for the respective breeds. The carcass traits analyzed were backfat thickness (BFT) and carcass weight (CWT), and the reproductive traits were total number born (TNB) and number born alive (NBA). For each trait, GEBV accuracies were evaluated with a GEBV BLUP model and realized GEBVs. Results: The accuracies under the GBLUP model for BFT and CWT ranged from 0.33-0.72 and 0.33-0.63, respectively. For NBA and TNB, the model accuracies ranged 0.32 to 0.54 and 0.39 to 0.56, respectively. The realized accuracy estimates for BFT and CWT ranged 0.30 to 0.46 and 0.09 to 0.27, respectively, and 0.50 to 0.70 and 0.70 to 0.87 for NBA and TNB, respectively. For the carcass traits, the GEBV accuracies under the GBLUP model were higher than the realized GEBV accuracies across the breed populations, while for reproductive traits the realized accuracies were higher than the model based GEBV accuracies. Conclusion: The genomic prediction accuracy increased with reference population size and heritability of the trait. The GEBV accuracies were also influenced by GEBV estimation method, such that careful selection of animals based on the estimated GEBVs is needed. GEBV accuracy will increase with a larger sized reference population, which would be more beneficial for traits with low heritability such as reproductive traits.

Pregnancy Diagnosis of Hanwoo(Korean Native Cattle) by Serum Progesterone Concentration during Early Gestaton (한우에 있어서 혈청 Progesterone 농도 측정에 의한 조기임신진단)

  • 백광수;성환후;오성종;양보석;이명식;정진관
    • Korean Journal of Animal Reproduction
    • /
    • v.19 no.3
    • /
    • pp.197-203
    • /
    • 1995
  • Serum progesterone concentrations of pregnant and non-pregnant Hanwoo were compared to evaluate the possibility of early pregnancy prediction. Twenty five female Hanwoo were devided into two groups. Eighteen heads were injected with 980$\mu\textrm{g}$ tiaprost trometamol salt(Iliren:PGF2$\alpha$ analogue) for estrous synchronization and fifteen heads of them were inseminated artifically and seven heads were non-treated. Blood samples were collected from the jugular vein before PGF2$\alpha$ injection and on day 0, 18, 21 after estrous induction. Pregnancy of cattle was confirmed by rectal palpaton after 60 days of artificial insemination. The serum progesterone concentrations at heat showed no significant differences between pregnant and non-pregnant while on day 18 and 21 after estrous induction showed significant differences(p<0.05). The accuracy of pregnancy diagnosis on day 18 and 21 after estrous induction was 85.7 and 71.4% respectively while that of non-pregnancy were 71.4 and 100.0% respectively.

  • PDF

Pan Evaporation and Reference Evapotranspiration Modeling using Neural Networks and Genetic Algorithm (인공신경망과 유전자 알고리즘을 이용한 증발접시 증발량과 증발산량의 모형화)

  • Kim, Seong-Won;Kim, Hyeong-Su;Ji, Hong-Gi
    • Proceedings of the Korea Water Resources Association Conference
    • /
    • 2006.05a
    • /
    • pp.115-119
    • /
    • 2006
  • The goal of this research is to develop and apply the generalized regression neural networks model (GRNNM) embedding genetic algorithm (GA) for pan evaporation, which is missed or ungaged and for the alfalfa reference evapotranspiration, which is not measured in South Korea. The GRNNM-GA is evaluated using the training, the testing, and reproduction performance respectively for the estimation of the PE and the alfalfa reference evapotranspiration. Since the observed data of the alfalfa reference evapotranspiration using lysimeter have not been measured for a long time in South Korea, the PM method is used to assume and estimate the observed alfalfa reference evapotranspiration. From this research, we evaluate the impact of the limited climatical variables on the accuracy of the GRNNM-GA. We should, furthermore, construct the credible data of the PE and the alfalfa reference evapotranspiration and suggest the reference data for irrigation and drainage networks system in South Korea.

  • PDF

A Study on Spot Color Proofing using ICC-based Color Management System (CMS를 사용한 별색 교정에 관한 연구)

  • Jung, Chung-Suk;Kang, Sang-Hoon
    • Proceedings of the Korean Printing Society Conference
    • /
    • 2007.11a
    • /
    • pp.65-73
    • /
    • 2007
  • The general commercial printing meets the customer's diverse demand by using spot color besides process four color. Especially, by using spot color for printing the enterprise's logo or specific color, we can see the effect of printing is getting better. The objective of this study was to examine the quality of spot color reproduction with Inkjet for 2 types of paper and Dye sublimation in ICC-based color management system. ICC profiles were generated for each device using ECI 2002 visual target and evaluated for the accuracy of each printer's color profile. The test chart consisting of Pantone color 1140 was selected to test the quality of spot color reproduction.

  • PDF

Audio Fingerprinting Based Spatial Audio Reproduction System (오디오 핑거프린팅기반 입체음향 재현 시스템)

  • Ryu, Sang Hyeon;Kim, Hyoung-Gook
    • Journal of the Institute of Electronics and Information Engineers
    • /
    • v.50 no.12
    • /
    • pp.217-223
    • /
    • 2013
  • This paper proposes a spatial audio reproduction system based on audio fingerprinting that combines the audio fingerprinting and the spatial audio processing. In the proposed system, a salient audio peak pair fingerprint based on modulation spectrum improves the accuracy of the audio fingerprinting system in real noisy environments and spatial audio information as metadata gives a listener a sensation of being listening to the sound in the space, where the sound is actually recorded.

Development of Milk Progesterone Test(EIA) using Monoclonal Antibody and It's Application to Estrus-and Early Pregnancy Detection in Dairy Cattle (단일클론항체를 이용한 Milk Progesterone Test(EIA) 측정법의 개발과 이에 의한 소의 발정 및 임신조기진단의 정확도 향상에 관한 연구)

  • 김정우;홍승욱
    • Korean Journal of Animal Reproduction
    • /
    • v.14 no.3
    • /
    • pp.165-173
    • /
    • 1990
  • A simple and sensitive microplate enzyme immunoassay(ELISA) was developed for progesterone, based on progesterone monoclonal antibody as anti-progesterone, horseradish peroxise(HRP) as enzyme-label and tetramethylbenzidine(TMB) as substrate. The assay has a sensitivity of 5pg-120pg/well and intra- and inter assay coefficients of variation for progesterone standard curve(0.1ng-3.2ng/ml) were ranged 4.4-10.6% and 5.-12.6%, respectively. They assay is performed in less than two hours and provide reliable values to differentiate among samples from day 0(A.I.), day 14 and day 19. The discriminatory levels for early pregnancy diagnosis are [>10ng(day 19) & decreasing rate <1.5 : pregnancy] and [ 7ng & decreasing rate 1.5 : non-pregnancy]. The accuracy of the pregnancy diagnosis for cows classified as positive(pregnancy) and negative(non-pregnancy) were 96% and 100%, respectively.

  • PDF

Sexing Bovine $Sperm^{a}$

  • Seidel, George E.
    • Proceedings of the KSAR Conference
    • /
    • 2001.10a
    • /
    • pp.6-10
    • /
    • 2001
  • No. Sperm can be sexed with 90% accuracy by flow cytometry/cell sorting. No. The current speed of sexing is about 5,000 live sperm of each sex per second, remarkably fast considering that each sperm is individually sexed. No. Although fast, sperm sexing is not fast enough to use standard numbers of sperm per AI dose. No. With well managed heifers, pregnancy rates with low doses of sexed, frozen sperm are 70-80% of those with unsexed sperm with normal sperm numbers. Pregnancy rates are lower in lactating dairy cows. No. Calves from sexed sperm appear to be normal. No. Sexed, frozen semen from a few bulls currently is available commercially in the United Kingdom, and likely will be available in several other countries in 2002, probably at a premium of US $30-50 per straw. (omitted)

  • PDF

Correlation Between Rhythm Reproduction Task Performance and Cognitive Function in School-Aged Children (초등학생의 리듬 재산출 능력과 인지기능 수준 간 상관관계)

  • Oh, So-young;Chong, Hyun Ju
    • Journal of Music and Human Behavior
    • /
    • v.13 no.1
    • /
    • pp.1-18
    • /
    • 2016
  • This study examined the correlation between the rhythm reproduction performance and cognitive function of school-aged children. A total of 59 third grade elementary students participated in this study. An iPad-based rhythm reproduction task, the Digit Span Test (DST), the Children's Color Trails Test (CCTT), and a self-paced tapping task via a MIDI keyboard were conducted for each participant. The results demonstrated that scores at each stage of the iPad-based rhythm reproduction test showed different patterns of correlation with cognitive function test scores. This result suggests that accuracy of a simple rhythm task is correlated to speed of self-paced tapping (second). Also cognitive function may affect rhythm grouping ability. Results of this analysis for each of 20 rhythm items showed that there was a common rhythm characteristics that correlated with executive function, working memory or self-paced tapping speed. These results indicate that rhythm ability is related to, and predictive of, the level of cognitive functioning in elementary school students and can be used as an useful parameter when examining cognitive function of school-aged children in multifaceted dimensions.

Scanning System and Reproduction of Adjustable Lower Dental Impression Tray (스캐닝 시스템과 하악용 가변형 트레이의 재현성)

  • Cha, Young-Youp;Eom, Sang-Ho
    • Journal of Institute of Control, Robotics and Systems
    • /
    • v.17 no.3
    • /
    • pp.254-257
    • /
    • 2011
  • This study was performed to development a dental three-dimensional laser scanning system and measure the accuracy of new adjustable lower dental impression trays. Multiple impressions of a resin master model were made with custom, stock and new adjustable trays and vinyl polysiloxane impression material. The lower master model and resulting cast were compared using an dental scanning system. Each 3D image was superimposed onto the lower master model image and analyzed with custom software. Multiple measurements of the lower master model and casts were analyzed to determine the accuracy of tray types.