Effect of crossbreeding on milk yield traits and somatic cell score in dairy cattle
This study aimed to estimate trends of heterosis for milk yield traits and somatic cell score (SCS) in the Dutch dairy cattle. First lactation data on 305-d milk, fat, and protein yield, and on average 305-d SCS recorded on pure Holstein Friesian (HF), Dutch Friesian (DF), Mosa Reno Yssel (MRY), and...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2010-04-01
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| Series: | Italian Journal of Animal Science |
| Subjects: | |
| Online Access: | http://www.aspajournal.it/index.php/ijas/article/view/1441 |
| _version_ | 1818597173627977728 |
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| author | M. Cassandro G. de Jong R. Dal Zotto A. Cecchinato M. Penasa |
| author_facet | M. Cassandro G. de Jong R. Dal Zotto A. Cecchinato M. Penasa |
| author_sort | M. Cassandro |
| collection | DOAJ |
| description | This study aimed to estimate trends of heterosis for milk yield traits and somatic cell score (SCS) in the Dutch dairy cattle. First lactation data on 305-d milk, fat, and protein yield, and on average 305-d SCS recorded on pure Holstein Friesian (HF), Dutch Friesian (DF), Mosa Reno Yssel (MRY), and F1 crossbreds (DFxHF and MRYxHF) were considered. According to cows’ year of calving, productive records from animals calving from 1980 to 2004 were divided in five periods, while SCS records from animals calving from 1990 to 2004 were divided in four periods. Data were processed using analysis of variance (ANOVA) according to a linear model which included effects of herd, season of calving, age at calving, and the genotype by period of calving interaction effect. Moreover, a linear covariate of sire’s estimated breeding value (EBV) for 305-d milk yield was added to the model for yield traits. Heterosis values for productive traits were positive but decreased over time. For 305-d milk yield these values changed from 7.5 to 3.0% in the DFxHF crossbreds, and from 9.0 to 1.0% in the MRYxHF crossbreds. Average heterosis for SCS (-1.2%) was small and negative with a favourable trend over years. |
| first_indexed | 2024-12-16T11:43:36Z |
| format | Article |
| id | doaj.art-748567fab2cd406db7bd5a3250146b9b |
| institution | Directory Open Access Journal |
| issn | 1594-4077 1828-051X |
| language | English |
| last_indexed | 2024-12-16T11:43:36Z |
| publishDate | 2010-04-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Italian Journal of Animal Science |
| spelling | doaj.art-748567fab2cd406db7bd5a3250146b9b2022-12-21T22:32:53ZengTaylor & Francis GroupItalian Journal of Animal Science1594-40771828-051X2010-04-0161s18618810.4081/ijas.2007.1s.186Effect of crossbreeding on milk yield traits and somatic cell score in dairy cattleM. CassandroG. de JongR. Dal ZottoA. CecchinatoM. PenasaThis study aimed to estimate trends of heterosis for milk yield traits and somatic cell score (SCS) in the Dutch dairy cattle. First lactation data on 305-d milk, fat, and protein yield, and on average 305-d SCS recorded on pure Holstein Friesian (HF), Dutch Friesian (DF), Mosa Reno Yssel (MRY), and F1 crossbreds (DFxHF and MRYxHF) were considered. According to cows’ year of calving, productive records from animals calving from 1980 to 2004 were divided in five periods, while SCS records from animals calving from 1990 to 2004 were divided in four periods. Data were processed using analysis of variance (ANOVA) according to a linear model which included effects of herd, season of calving, age at calving, and the genotype by period of calving interaction effect. Moreover, a linear covariate of sire’s estimated breeding value (EBV) for 305-d milk yield was added to the model for yield traits. Heterosis values for productive traits were positive but decreased over time. For 305-d milk yield these values changed from 7.5 to 3.0% in the DFxHF crossbreds, and from 9.0 to 1.0% in the MRYxHF crossbreds. Average heterosis for SCS (-1.2%) was small and negative with a favourable trend over years.http://www.aspajournal.it/index.php/ijas/article/view/1441Crossbreeding, Dairy cattle, Milk yield traits, Somatic cell score. |
| spellingShingle | M. Cassandro G. de Jong R. Dal Zotto A. Cecchinato M. Penasa Effect of crossbreeding on milk yield traits and somatic cell score in dairy cattle Italian Journal of Animal Science Crossbreeding, Dairy cattle, Milk yield traits, Somatic cell score. |
| title | Effect of crossbreeding on milk yield traits and somatic cell score in dairy cattle |
| title_full | Effect of crossbreeding on milk yield traits and somatic cell score in dairy cattle |
| title_fullStr | Effect of crossbreeding on milk yield traits and somatic cell score in dairy cattle |
| title_full_unstemmed | Effect of crossbreeding on milk yield traits and somatic cell score in dairy cattle |
| title_short | Effect of crossbreeding on milk yield traits and somatic cell score in dairy cattle |
| title_sort | effect of crossbreeding on milk yield traits and somatic cell score in dairy cattle |
| topic | Crossbreeding, Dairy cattle, Milk yield traits, Somatic cell score. |
| url | http://www.aspajournal.it/index.php/ijas/article/view/1441 |
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