Cargando…
Genetic Relationship of Productive Life, Production and Type Traits of Korean Holsteins at Early Lactations
The present study was performed to study the genetic relationship of productive life with production and type traits of Korean Holsteins at first three lactations. The data for the analysis from 56,054, 28,997, and 11,816 animals of first, second and third parity cows which were born from 2006 to 20...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Asian-Australasian Association of Animal Production Societies (AAAP) and Korean Society of Animal Science and Technology (KSAST)
2015
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4554865/ https://www.ncbi.nlm.nih.gov/pubmed/26194223 http://dx.doi.org/10.5713/ajas.15.0034 |
_version_ | 1782388094560894976 |
---|---|
author | Wasana, Nidarshani Cho, GwangHyun Park, SuBong Kim, SiDong Choi, JaeGwan Park, ByungHo Park, ChanHyuk Do, ChangHee |
author_facet | Wasana, Nidarshani Cho, GwangHyun Park, SuBong Kim, SiDong Choi, JaeGwan Park, ByungHo Park, ChanHyuk Do, ChangHee |
author_sort | Wasana, Nidarshani |
collection | PubMed |
description | The present study was performed to study the genetic relationship of productive life with production and type traits of Korean Holsteins at first three lactations. The data for the analysis from 56,054, 28,997, and 11,816 animals of first, second and third parity cows which were born from 2006 to 2011 were collected by Dairy Cattle Improvement Center, National Agricultural Co-operative Federation. Milk, protein and fat yields adjusted for 305 days and average somatic cell score considered as production traits and analyzed type traits were stature, strength, body depth, dairy form, rump angle, rump width, rear leg side view, foot angle, front attachment placement, rear attachment height, rear attachment width, udder cleft, udder depth, front teat placement and front teat length. A multi trait genetic analysis was performed using Wombat program with restricted maximum likelihood animal model composed of fixed effect of birth year, farm and the random effect of animal and random residual effect according to the traits. Heritability estimates of productive life were between 0.06 and 0.13. Genetic and phenotypic correlations between production and productive life traits ranged from 0.35 to 0.04 for milk, 0.16 to 0.05 for protein and 0.18 to 0.02 f 15-0034 (2nd) 150520 or fat. Somatic cells score showed a negative genetic and phenotypic correlation with productive life and also udder type traits, indicating that the selection for higher udder traits will likely to improve resistance to mastitis and persistence in the herd. Among all dairy form type traits, udder characters such as udder cleft showed a significant relationship with productive life. However, a specific change of heritabilities or correlations were not observed with the change of parity. Moreover, further studies are needed to further confirm the significance of the above traits and the effect of parity on above relationships in order to minimize both voluntary and involuntary culling rates while improving herd health and maintaining high yielding dairy cows. |
format | Online Article Text |
id | pubmed-4554865 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Asian-Australasian Association of Animal Production Societies (AAAP) and Korean Society of Animal Science and Technology (KSAST) |
record_format | MEDLINE/PubMed |
spelling | pubmed-45548652015-09-01 Genetic Relationship of Productive Life, Production and Type Traits of Korean Holsteins at Early Lactations Wasana, Nidarshani Cho, GwangHyun Park, SuBong Kim, SiDong Choi, JaeGwan Park, ByungHo Park, ChanHyuk Do, ChangHee Asian-Australas J Anim Sci Article The present study was performed to study the genetic relationship of productive life with production and type traits of Korean Holsteins at first three lactations. The data for the analysis from 56,054, 28,997, and 11,816 animals of first, second and third parity cows which were born from 2006 to 2011 were collected by Dairy Cattle Improvement Center, National Agricultural Co-operative Federation. Milk, protein and fat yields adjusted for 305 days and average somatic cell score considered as production traits and analyzed type traits were stature, strength, body depth, dairy form, rump angle, rump width, rear leg side view, foot angle, front attachment placement, rear attachment height, rear attachment width, udder cleft, udder depth, front teat placement and front teat length. A multi trait genetic analysis was performed using Wombat program with restricted maximum likelihood animal model composed of fixed effect of birth year, farm and the random effect of animal and random residual effect according to the traits. Heritability estimates of productive life were between 0.06 and 0.13. Genetic and phenotypic correlations between production and productive life traits ranged from 0.35 to 0.04 for milk, 0.16 to 0.05 for protein and 0.18 to 0.02 f 15-0034 (2nd) 150520 or fat. Somatic cells score showed a negative genetic and phenotypic correlation with productive life and also udder type traits, indicating that the selection for higher udder traits will likely to improve resistance to mastitis and persistence in the herd. Among all dairy form type traits, udder characters such as udder cleft showed a significant relationship with productive life. However, a specific change of heritabilities or correlations were not observed with the change of parity. Moreover, further studies are needed to further confirm the significance of the above traits and the effect of parity on above relationships in order to minimize both voluntary and involuntary culling rates while improving herd health and maintaining high yielding dairy cows. Asian-Australasian Association of Animal Production Societies (AAAP) and Korean Society of Animal Science and Technology (KSAST) 2015-09 /pmc/articles/PMC4554865/ /pubmed/26194223 http://dx.doi.org/10.5713/ajas.15.0034 Text en Copyright © 2015 by Asian-Australasian Journal of Animal Sciences |
spellingShingle | Article Wasana, Nidarshani Cho, GwangHyun Park, SuBong Kim, SiDong Choi, JaeGwan Park, ByungHo Park, ChanHyuk Do, ChangHee Genetic Relationship of Productive Life, Production and Type Traits of Korean Holsteins at Early Lactations |
title | Genetic Relationship of Productive Life, Production and Type Traits of Korean Holsteins at Early Lactations |
title_full | Genetic Relationship of Productive Life, Production and Type Traits of Korean Holsteins at Early Lactations |
title_fullStr | Genetic Relationship of Productive Life, Production and Type Traits of Korean Holsteins at Early Lactations |
title_full_unstemmed | Genetic Relationship of Productive Life, Production and Type Traits of Korean Holsteins at Early Lactations |
title_short | Genetic Relationship of Productive Life, Production and Type Traits of Korean Holsteins at Early Lactations |
title_sort | genetic relationship of productive life, production and type traits of korean holsteins at early lactations |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4554865/ https://www.ncbi.nlm.nih.gov/pubmed/26194223 http://dx.doi.org/10.5713/ajas.15.0034 |
work_keys_str_mv | AT wasananidarshani geneticrelationshipofproductivelifeproductionandtypetraitsofkoreanholsteinsatearlylactations AT chogwanghyun geneticrelationshipofproductivelifeproductionandtypetraitsofkoreanholsteinsatearlylactations AT parksubong geneticrelationshipofproductivelifeproductionandtypetraitsofkoreanholsteinsatearlylactations AT kimsidong geneticrelationshipofproductivelifeproductionandtypetraitsofkoreanholsteinsatearlylactations AT choijaegwan geneticrelationshipofproductivelifeproductionandtypetraitsofkoreanholsteinsatearlylactations AT parkbyungho geneticrelationshipofproductivelifeproductionandtypetraitsofkoreanholsteinsatearlylactations AT parkchanhyuk geneticrelationshipofproductivelifeproductionandtypetraitsofkoreanholsteinsatearlylactations AT dochanghee geneticrelationshipofproductivelifeproductionandtypetraitsofkoreanholsteinsatearlylactations |