Estimation of heritability and genetic correlation of body weight gain and growth curve parameters in Korean native chicken
Objective This study estimated the genetic parameters for body weight gain and growth curve parameter traits in Korean native chicken (KNC). Methods A total of 585 F1 chickens were used along with 88 of their F0 birds. Body weights were measured every 2 weeks from hatching to 20 weeks of age to meas...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Asian-Australasian Association of Animal Production Societies
2018-01-01
|
| Series: | Asian-Australasian Journal of Animal Sciences |
| Subjects: | |
| Online Access: | http://www.ajas.info/upload/pdf/ajas-31-1-26.pdf |
| _version_ | 1818026750956797952 |
|---|---|
| author | Prabuddha Manjula Hee-Bok Park Dongwon Seo Nuri Choi Shil Jin Sung Jin Ahn Kang Nyeong Heo Bo Seok Kang Jun-Heon Lee |
| author_facet | Prabuddha Manjula Hee-Bok Park Dongwon Seo Nuri Choi Shil Jin Sung Jin Ahn Kang Nyeong Heo Bo Seok Kang Jun-Heon Lee |
| author_sort | Prabuddha Manjula |
| collection | DOAJ |
| description | Objective This study estimated the genetic parameters for body weight gain and growth curve parameter traits in Korean native chicken (KNC). Methods A total of 585 F1 chickens were used along with 88 of their F0 birds. Body weights were measured every 2 weeks from hatching to 20 weeks of age to measure weight gain at 2-week intervals. For each individual, a logistic growth curve model was fitted to the longitudinal growth dataset to obtain three growth curve parameters (α, asymptotic final body weight; β, inflection point; and γ, constant scale that was proportional to the overall growth rate). Genetic parameters were estimated based on the linear-mixed model using a restricted maximum likelihood method. Results Heritability estimates of body weight gain traits were low to high (0.057 to 0.458). Heritability estimates for α, β, and γ were 0.211±0.08, 0.249±0.09, and 0.095±0.06, respectively. Both genetic and phenotypic correlations between weight gain traits ranged from −0.527 to 0.993. Genetic and phenotypic correlation between the growth curve parameters and weight gain traits ranged from −0.968 to 0.987. Conclusion Based on the results of this study population, we suggest that the KNC could be used for selective breeding between 6 and 8 weeks of age to enhance the overall genetic improvement of growth traits. After validation of these results in independent studies, these findings will be useful for further optimization of breeding programs for KNC. |
| first_indexed | 2024-12-10T04:36:58Z |
| format | Article |
| id | doaj.art-f5a374ef7951466fa03077cd5454208c |
| institution | Directory Open Access Journal |
| issn | 1011-2367 1976-5517 |
| language | English |
| last_indexed | 2024-12-10T04:36:58Z |
| publishDate | 2018-01-01 |
| publisher | Asian-Australasian Association of Animal Production Societies |
| record_format | Article |
| series | Asian-Australasian Journal of Animal Sciences |
| spelling | doaj.art-f5a374ef7951466fa03077cd5454208c2022-12-22T02:02:00ZengAsian-Australasian Association of Animal Production SocietiesAsian-Australasian Journal of Animal Sciences1011-23671976-55172018-01-01311263110.5713/ajas.17.017923790Estimation of heritability and genetic correlation of body weight gain and growth curve parameters in Korean native chickenPrabuddha Manjula0Hee-Bok Park1Dongwon Seo2Nuri Choi3Shil Jin4Sung Jin Ahn5Kang Nyeong Heo6Bo Seok Kang7Jun-Heon Lee8 Division of animal and Dairy Science, Chungnam National University, Daejeon 34134, Korea National Institute of Animal Science, Jeju 63242, Korea Division of animal and Dairy Science, Chungnam National University, Daejeon 34134, Korea Division of animal and Dairy Science, Chungnam National University, Daejeon 34134, Korea Division of animal and Dairy Science, Chungnam National University, Daejeon 34134, Korea Department of Information Statistics, RINS, Gyeongsang National University, Jinju 52828, Korea National Institute of Animal Science, Pyeongchang 25342, Korea National Institute of Animal Science, Pyeongchang 25342, Korea Division of animal and Dairy Science, Chungnam National University, Daejeon 34134, KoreaObjective This study estimated the genetic parameters for body weight gain and growth curve parameter traits in Korean native chicken (KNC). Methods A total of 585 F1 chickens were used along with 88 of their F0 birds. Body weights were measured every 2 weeks from hatching to 20 weeks of age to measure weight gain at 2-week intervals. For each individual, a logistic growth curve model was fitted to the longitudinal growth dataset to obtain three growth curve parameters (α, asymptotic final body weight; β, inflection point; and γ, constant scale that was proportional to the overall growth rate). Genetic parameters were estimated based on the linear-mixed model using a restricted maximum likelihood method. Results Heritability estimates of body weight gain traits were low to high (0.057 to 0.458). Heritability estimates for α, β, and γ were 0.211±0.08, 0.249±0.09, and 0.095±0.06, respectively. Both genetic and phenotypic correlations between weight gain traits ranged from −0.527 to 0.993. Genetic and phenotypic correlation between the growth curve parameters and weight gain traits ranged from −0.968 to 0.987. Conclusion Based on the results of this study population, we suggest that the KNC could be used for selective breeding between 6 and 8 weeks of age to enhance the overall genetic improvement of growth traits. After validation of these results in independent studies, these findings will be useful for further optimization of breeding programs for KNC.http://www.ajas.info/upload/pdf/ajas-31-1-26.pdfKorean Native ChickenLogistic ModelSelectionGenetic ParameterBreeding |
| spellingShingle | Prabuddha Manjula Hee-Bok Park Dongwon Seo Nuri Choi Shil Jin Sung Jin Ahn Kang Nyeong Heo Bo Seok Kang Jun-Heon Lee Estimation of heritability and genetic correlation of body weight gain and growth curve parameters in Korean native chicken Asian-Australasian Journal of Animal Sciences Korean Native Chicken Logistic Model Selection Genetic Parameter Breeding |
| title | Estimation of heritability and genetic correlation of body weight gain and growth curve parameters in Korean native chicken |
| title_full | Estimation of heritability and genetic correlation of body weight gain and growth curve parameters in Korean native chicken |
| title_fullStr | Estimation of heritability and genetic correlation of body weight gain and growth curve parameters in Korean native chicken |
| title_full_unstemmed | Estimation of heritability and genetic correlation of body weight gain and growth curve parameters in Korean native chicken |
| title_short | Estimation of heritability and genetic correlation of body weight gain and growth curve parameters in Korean native chicken |
| title_sort | estimation of heritability and genetic correlation of body weight gain and growth curve parameters in korean native chicken |
| topic | Korean Native Chicken Logistic Model Selection Genetic Parameter Breeding |
| url | http://www.ajas.info/upload/pdf/ajas-31-1-26.pdf |
| work_keys_str_mv | AT prabuddhamanjula estimationofheritabilityandgeneticcorrelationofbodyweightgainandgrowthcurveparametersinkoreannativechicken AT heebokpark estimationofheritabilityandgeneticcorrelationofbodyweightgainandgrowthcurveparametersinkoreannativechicken AT dongwonseo estimationofheritabilityandgeneticcorrelationofbodyweightgainandgrowthcurveparametersinkoreannativechicken AT nurichoi estimationofheritabilityandgeneticcorrelationofbodyweightgainandgrowthcurveparametersinkoreannativechicken AT shiljin estimationofheritabilityandgeneticcorrelationofbodyweightgainandgrowthcurveparametersinkoreannativechicken AT sungjinahn estimationofheritabilityandgeneticcorrelationofbodyweightgainandgrowthcurveparametersinkoreannativechicken AT kangnyeongheo estimationofheritabilityandgeneticcorrelationofbodyweightgainandgrowthcurveparametersinkoreannativechicken AT boseokkang estimationofheritabilityandgeneticcorrelationofbodyweightgainandgrowthcurveparametersinkoreannativechicken AT junheonlee estimationofheritabilityandgeneticcorrelationofbodyweightgainandgrowthcurveparametersinkoreannativechicken |