Genetic Relationship of Gestation Length with Birth and Weaning Weight in Hanwoo (Bos Taurus Coreanae)

Hwang, J.M.; jae-gwan, choi; Kim, H. C.; Choy, Yun Ho; Kim, S.; Lee, C.; Kim, J. B.

doi:10.5713/ajas.2008.70509

Cited by 8 publications

(15 citation statements)

References 35 publications

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“…(Table.2) Means for BW, WW and DG were 28.6, 92.6 and 0.60 kg., respectively. Mean of BW lower than those reported by Hullya Atil et al, (2005) (31.8 kg) and higher than Hwang et al (2008) (24.4 kg).while Mean of WW higher than While, Hwang et al, (2008) The coefficient of variation for BW, WW and DG were 11.1, 12.1 and 17.5 % respectively. Hullya Atil et al (2005) estimates for BW and WW were 14.4 and 10.5 Hwang et al, (2008) found that BW and WW were 15.3 and 22.0.…”

Section: Environmental Trend (Env)mentioning

confidence: 51%

“…Mean of BW lower than those reported by Hullya Atil et al, (2005) (31.8 kg) and higher than Hwang et al (2008) (24.4 kg).while Mean of WW higher than While, Hwang et al, (2008) The coefficient of variation for BW, WW and DG were 11.1, 12.1 and 17.5 % respectively. Hullya Atil et al (2005) estimates for BW and WW were 14.4 and 10.5 Hwang et al, (2008) found that BW and WW were 15.3 and 22.0. Differences between the results of this study and the results of previous research may be due to differences in the methods of statistical analysis or the number of records used or due to different management and ways of care.…”

Section: Environmental Trend (Env)mentioning

confidence: 51%

“…Hullya Atil et al (2005) found that the estimates P e 2 were 0.47 and 0.018 for BW and WW, respectively. Hwang et al, (2008) observed that, Pe 2 were 0.02 and 0.06 were 0.47 and 0.018 for BW and WW, respectively by DF-REML method. Gutierrez et al (1997) using 7 models found that, P e 2 were 0.06, 0.00 and 0.00 (model 4) and 0.0.3, 0.06 and 0.06 (model 7) for BW, WW and DG, respectively.…”

Section: Genetic Parameters Heritability Estimatesmentioning

confidence: 84%

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Estimation of Genetic and Phenotypic Parameters for Growth Traits of Friesian Cattle Raised in Egypt.

Sanad¹,

Gharib²

2017

Journal of Animal and Poultry Production

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Growth traits (GT) of 1691 Friesian calves by 74 sires and 789 dams over a 20 years (1997 to 2016) in Alkarda Farm, Egypt. Traits studied were weight at birth weight (BW), weaning weight (WW) and daily gain (DG). Records were analyzed Multiple Trait Likelihood (MTDFREML) to estimate covariance components and Heritability(h 2), genetic correlations(r G) , maternal correlations (r m) and phenotypic correlations(r P), breeding values(BV), and Epigenetic trend (EGT)for growth traits (GT) of Friesian cattle raised in Egypt. Actual mean for BW,WW and DG were 28.6kg, 92.6kg and 0.60 gm , respectively. Direct heritability (h 2 a) estimates for BW, WW and DG were 0.32±0.06, 0.22±0.06 and 0.34±0.85, respectively; on the same time low maternal heritability (h 2 m) were 0.12±0.35, 0.08±0.49 and 0.18±0.71, respectively. The permanent environment (P 2) was 0.021±0.70, 0.030±0.77 and 0.058±0.72 for BW, WW and DG, respectively. Phenotypic correlation (r P) were 0.99m while, direct genetic correlation (r g) are ranged from 0.56 to 0.96.While, maternal correlations (r m) ranged from were 0.48, to 0.93. Rang of breeding value (BV) estimated of calves for BW, WW and DG were 51.5kg, 10.1kg and 31.2 kg , the BV of sire for the same traits 17.7 kg, 101.0kg and 12.0g. While the range of dams BV were 11.4kg, 17.8kg and 17.7gm respectively. The results showed that it is better to choose on the basis of the BV of calves to obtain highly genetic improvement. Generally the direction was (EGT) positive in the autumn and summer 'while it was negative in the winter and spring of the studied traits. In addition, the estimated genetic trends of Epigenetics that the genetic performance of cows is affected by the exist environmental conditions, as the influence of the season, parity and year, which has shown an impact at some levels, so, sufficient care is necessary help them to rapid their full genetic possibility by improving environmental conditions Inappropriate. This results in animals showing their full genetic potential for GT, thus increasing the efficiency of selection. We conclude from this study: Improve the performance of the animal under study by estimating the environmental and genetic factors and knowing their impact on growth performance, which will allow them to set standards for assessing the performance of the animals. The traits under study are high to medium in the values of genetic equivalence. The genetic correlations between the characteristics of the study are positive and high. The direct genetic and permanent effects are more effective in the selection process. The results show that all traits of growth have a clear potential for improved yield through direct genetic selection and more attention to environmental conditions through good care and selection based on breeding values. This results in animals showing their full genetic potential for growth traits, thus increasing the efficiency of selection.

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Section: Environmental Trend (Env)mentioning

confidence: 51%

Section: Environmental Trend (Env)mentioning

confidence: 51%

Section: Genetic Parameters Heritability Estimatesmentioning

confidence: 84%

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Estimation of Genetic and Phenotypic Parameters for Growth Traits of Friesian Cattle Raised in Egypt.

Sanad¹,

Gharib²

2017

Journal of Animal and Poultry Production

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“…Few literatures estimated the heritability for GP in goat breed. However, several literatures reported the higher estimates for this trait in other species by use of different models, such as the Yankasa sheep (0.20) by paternal half-sib model (Osinowo et al, 1993), the horse (0.2) by linear unbiased predictor univariate animal model, the Hanwoo cattle (0.38-0.48) obtained in different models by REML (Hwang et al, 2008), the Japanese Black cattle (0.53) by bi-variate analysis (Ibi et al, 2008) and the Danish Holsteins (0.42) obtained in a threshold model by Bayesian Gibbs sampling (Hansen et al, 2004).…”

Section: Heritabilitymentioning

confidence: 96%

“…The gestation period (GP) has a large distinction between single and multiple birth species and affects the total maternal production. However, few literatures have reported to estimate genetic parameters for LSW and GP in the goat, although there are several literatures that have estimated the genetic parameters for LSB in the goat (Menendez- Buxadera et al, 2003;Bagnicka et al, 2007) and the sheep (Hanford et al, 2006;Afolayan et al, 2008), for LSW in the sheep (van Wyk et al, 2003;Hanford et al, 2006), for GP in the sheep (Osinowo et al, 1993) and the cattle (Hwang et al, 2008;Ibi et al, 2008). Moreover, litter size (LS) significantly associates with the growth of kids.…”

Section: Contents Lists Available At Sciencedirectmentioning

confidence: 97%

Genetic and phenotypic parameter estimates for reproduction traits in the Boer dam

Zhang

Chen

et al. 2009

Livestock Science

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Growth performance of Lowline Angus x Thai native crossbred beef under tropical condition

Pilajun

Thummasaeng

Sawasdiphan

et al. 2019

Trop Anim Health Prod

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Genetic Relationship of Gestation Length with Birth and Weaning Weight in Hanwoo (Bos Taurus Coreanae)

Cited by 8 publications

References 35 publications

Estimation of Genetic and Phenotypic Parameters for Growth Traits of Friesian Cattle Raised in Egypt.

Estimation of Genetic and Phenotypic Parameters for Growth Traits of Friesian Cattle Raised in Egypt.

Genetic and phenotypic parameter estimates for reproduction traits in the Boer dam

Growth performance of Lowline Angus x Thai native crossbred beef under tropical condition

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