Progress 05/01/21 to 04/30/22
Outputs
Target Audience:
Nothing Reported
Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?
Nothing Reported
How have the results been disseminated to communities of interest?An abstract was submitted to the ADSA Annual Meeting for the summer of 2022 relating to this project which will allow the results to be dissemiated to the animal breeding community. What do you plan to do during the next reporting period to accomplish the goals?The final results will be summarized in a research paper to be submitted to a peer-reviewed journal.
Impacts
What was accomplished under these goals?
We were able to estimate TL and estimate breed averages. We also were able to estimated breed differences for production and conformation traits related to performance and well-being.
Publications
- Type:
Conference Papers and Presentations
Status:
Accepted
Year Published:
2022
Citation:
Haagen, I.W., T. Muraturi, and C. Dechow. 2022. Breed differences for telomere length, body condition score, stature, and production between Holsteins, Montbeliardes, and their crosses. ADSA.
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Progress 05/01/19 to 04/30/22
Outputs
Target Audience:The target audience is the scientific community and dairy producers. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?The PI was able to attend the American Dairy Science Association meeting at present research to broad dairy science audience. How have the results been disseminated to communities of interest?We have presented the results of this project at a national conference and engaged with producers who participated in our research. What do you plan to do during the next reporting period to accomplish the goals?
Nothing Reported
Impacts
What was accomplished under these goals?
This was the first project in the United States to estimate breed differences and hybrid vigor for telomere length as well as production traits. We observed no statistical difference in telomere length between breeds; however, there were clear differences for production and conformation traits. In particular, Montbeliarde cows were produced less milk yield than either Holsteins or F1 Montbeliarde x Holstein crosses. Montbeliarde cows also produced less fat than Holsteins and less protein than F1 crosses. Finally, beneficial changes, such as decreased stature and increased body condition, were observed for F1 crosses when compared to Holsteins.
Publications
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Progress 05/01/20 to 04/30/21
Outputs
Target Audience:The primary audience has been farm operators during data collection. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?
Nothing Reported
How have the results been disseminated to communities of interest?
Nothing Reported
What do you plan to do during the next reporting period to accomplish the goals?During the next reporting period, final data analyses will occur and manuscript submitted for consideration in a peer-reviewed journal.
Impacts
What was accomplished under these goals?
We have successfully completed all farm visits and DNA extractions for telomere length estimation.
Publications
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Progress 05/01/19 to 04/30/20
Outputs
Target Audience:The target audience is researchers, dairy(wo)men, breed associations, and AI company employees. So far, we have primarily interacted with farm managers through data collection. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?The PD was able to teach substantial portions of an Animal Science course during the Spring 2020 and in addition was a teaching assistant for another course during the Fall 2019. How have the results been disseminated to communities of interest?
Nothing Reported
What do you plan to do during the next reporting period to accomplish the goals?We plan on visiting our participating herds once more during the Summer/Fall of 2020. During these visits, we will collect additional blood samples and once again appraise cow phenotypes.Additionally during the next reporting period, we will complete lab work (DNA extraction and qPCR). Once all lab work is completed, we will be able to determine differences in TL, associateTL with cow performance and well-being measures, and determine the relationship of TL phenotypes with genetic traits currently evaluated in the United States.
Impacts
What was accomplished under these goals?
Objective 1) We were able to identify and visit participating herds to collect bloodsamples and evaluate cow phenotypes. We have started the process ofextracting DNA for TL estimation which will be used to determine breed differencs. Objective 2) Currently, we are working to standardize farm data to complete this objective. 3.) This objective hinges on the completion of objective 1. As such, we are actively extracting DNA to estimate TL.
Publications
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