Estimation of the Genetic Parameters for Test-Day Milk Yield in Holstein Cattle
The objective of this study was to determine the genetic parameters represented by heritability for test-day milk yield, the genetic correlations between test-days milk yield and the breeding value for Holstein cows. The model used was random regression test-day animal model. The data set consists o...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Agroprint Timisoara
2023-09-01
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| Series: | Scientific Papers Animal Science and Biotechnologies |
| Subjects: | |
| Online Access: | https://spasb.ro/index.php/public_html/article/view/1046 |
| _version_ | 1797215453181902848 |
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| author | Stefania Rodica Pelmus Horia Grosu Mircea Catalin Rotar Mihail Alexandru Gras Elena Ghita Cristina Lazar |
| author_facet | Stefania Rodica Pelmus Horia Grosu Mircea Catalin Rotar Mihail Alexandru Gras Elena Ghita Cristina Lazar |
| author_sort | Stefania Rodica Pelmus |
| collection | DOAJ |
| description | The objective of this study was to determine the genetic parameters represented by heritability for test-day milk yield, the genetic correlations between test-days milk yield and the breeding value for Holstein cows. The model used was random regression test-day animal model. The data set consists of 216 test day records from 30 cows. The average number of test day per lactation was seven. The heritability estimates for test-day milk yield ranged from 0.43 at 250th day in milk, to 0.60 at 10th day in milk. Genetic correlations between individual test days milk yield were high and positive. |
| first_indexed | 2024-04-24T11:30:18Z |
| format | Article |
| id | doaj.art-ca56a6c8fbc5462694c9d48c46ae9c36 |
| institution | Directory Open Access Journal |
| issn | 1841-9364 2344-4576 |
| language | English |
| last_indexed | 2024-04-24T11:30:18Z |
| publishDate | 2023-09-01 |
| publisher | Agroprint Timisoara |
| record_format | Article |
| series | Scientific Papers Animal Science and Biotechnologies |
| spelling | doaj.art-ca56a6c8fbc5462694c9d48c46ae9c362024-04-10T10:50:30ZengAgroprint TimisoaraScientific Papers Animal Science and Biotechnologies1841-93642344-45762023-09-0150185851046Estimation of the Genetic Parameters for Test-Day Milk Yield in Holstein CattleStefania Rodica Pelmus0Horia Grosu1Mircea Catalin Rotar2Mihail Alexandru Gras3Elena Ghita4Cristina Lazar5National Research-Development Institute for Animal Biology and Nutrition, 077015-Balotesti, Calea Bucuresti, 1, RomaniaNational Research-Development Institute for Animal Biology and Nutrition, 077015-Balotesti, Calea Bucuresti, 1, RomaniaNational Research-Development Institute for Animal Biology and Nutrition, 077015-Balotesti, Calea Bucuresti, 1, RomaniaNational Research-Development Institute for Animal Biology and Nutrition, 077015-Balotesti, Calea Bucuresti, 1, RomaniaNational Research-Development Institute for Animal Biology and Nutrition, 077015-Balotesti, Calea Bucuresti, 1, RomaniaNational Research-Development Institute for Animal Biology and Nutrition, 077015-Balotesti, Calea Bucuresti, 1, RomaniaThe objective of this study was to determine the genetic parameters represented by heritability for test-day milk yield, the genetic correlations between test-days milk yield and the breeding value for Holstein cows. The model used was random regression test-day animal model. The data set consists of 216 test day records from 30 cows. The average number of test day per lactation was seven. The heritability estimates for test-day milk yield ranged from 0.43 at 250th day in milk, to 0.60 at 10th day in milk. Genetic correlations between individual test days milk yield were high and positive.https://spasb.ro/index.php/public_html/article/view/1046breeding valuerandom regression test-day modeltest day milk yield |
| spellingShingle | Stefania Rodica Pelmus Horia Grosu Mircea Catalin Rotar Mihail Alexandru Gras Elena Ghita Cristina Lazar Estimation of the Genetic Parameters for Test-Day Milk Yield in Holstein Cattle Scientific Papers Animal Science and Biotechnologies breeding value random regression test-day model test day milk yield |
| title | Estimation of the Genetic Parameters for Test-Day Milk Yield in Holstein Cattle |
| title_full | Estimation of the Genetic Parameters for Test-Day Milk Yield in Holstein Cattle |
| title_fullStr | Estimation of the Genetic Parameters for Test-Day Milk Yield in Holstein Cattle |
| title_full_unstemmed | Estimation of the Genetic Parameters for Test-Day Milk Yield in Holstein Cattle |
| title_short | Estimation of the Genetic Parameters for Test-Day Milk Yield in Holstein Cattle |
| title_sort | estimation of the genetic parameters for test day milk yield in holstein cattle |
| topic | breeding value random regression test-day model test day milk yield |
| url | https://spasb.ro/index.php/public_html/article/view/1046 |
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