Impact of calving interval on milk yield and longevity of primiparous Estonian Holstein cows
Data about 4 474 high-yielding Estonian Holstein dairy cows from 14 herds was analysed for the impact of the first calving interval length (CI1) on milk yield (MY) and lactation persistency. The results show that cows with CI1 shorter than 12 months have on average 2 345 kg lower milk yield in the f...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2020-10-01
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| Series: | Czech Journal of Animal Science |
| Subjects: | |
| Online Access: | https://cjas.agriculturejournals.cz/artkey/cjs-202010-0001_impact-of-x202f-calving-interval-on-x202f-milk-yield-and-longevity-of-x202f-primiparous-estonian-holstein-co.php |
| _version_ | 1797899135737659392 |
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| author | Aadi Remmik Rando Värnik Kalle Kask |
| author_facet | Aadi Remmik Rando Värnik Kalle Kask |
| author_sort | Aadi Remmik |
| collection | DOAJ |
| description | Data about 4 474 high-yielding Estonian Holstein dairy cows from 14 herds was analysed for the impact of the first calving interval length (CI1) on milk yield (MY) and lactation persistency. The results show that cows with CI1 shorter than 12 months have on average 2 345 kg lower milk yield in the first 1 000 days of productive lifetime than those with CI1 between 14 and 16 months. This is caused by lower MY in both the first and the second lactation as well as higher probability of being culled before reaching 1 000 days of productive life. |
| first_indexed | 2024-04-10T08:25:12Z |
| format | Article |
| id | doaj.art-87212e259b9946b1b5ea80d351a6498a |
| institution | Directory Open Access Journal |
| issn | 1212-1819 1805-9309 |
| language | English |
| last_indexed | 2024-04-10T08:25:12Z |
| publishDate | 2020-10-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Czech Journal of Animal Science |
| spelling | doaj.art-87212e259b9946b1b5ea80d351a6498a2023-02-23T03:33:45ZengCzech Academy of Agricultural SciencesCzech Journal of Animal Science1212-18191805-93092020-10-01651036537210.17221/130/2020-CJAScjs-202010-0001Impact of calving interval on milk yield and longevity of primiparous Estonian Holstein cowsAadi Remmik0Rando Värnik1Kalle Kask2Institute of Economics and Social Sciences, Estonian University of Life Sciences, Tartu, EstoniaInstitute of Economics and Social Sciences, Estonian University of Life Sciences, Tartu, EstoniaInstitute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Tartu, EstoniaData about 4 474 high-yielding Estonian Holstein dairy cows from 14 herds was analysed for the impact of the first calving interval length (CI1) on milk yield (MY) and lactation persistency. The results show that cows with CI1 shorter than 12 months have on average 2 345 kg lower milk yield in the first 1 000 days of productive lifetime than those with CI1 between 14 and 16 months. This is caused by lower MY in both the first and the second lactation as well as higher probability of being culled before reaching 1 000 days of productive life.https://cjas.agriculturejournals.cz/artkey/cjs-202010-0001_impact-of-x202f-calving-interval-on-x202f-milk-yield-and-longevity-of-x202f-primiparous-estonian-holstein-co.phpdairylactationpersistency |
| spellingShingle | Aadi Remmik Rando Värnik Kalle Kask Impact of calving interval on milk yield and longevity of primiparous Estonian Holstein cows Czech Journal of Animal Science dairy lactation persistency |
| title | Impact of calving interval on milk yield and longevity of primiparous Estonian Holstein cows |
| title_full | Impact of calving interval on milk yield and longevity of primiparous Estonian Holstein cows |
| title_fullStr | Impact of calving interval on milk yield and longevity of primiparous Estonian Holstein cows |
| title_full_unstemmed | Impact of calving interval on milk yield and longevity of primiparous Estonian Holstein cows |
| title_short | Impact of calving interval on milk yield and longevity of primiparous Estonian Holstein cows |
| title_sort | impact of calving interval on milk yield and longevity of primiparous estonian holstein cows |
| topic | dairy lactation persistency |
| url | https://cjas.agriculturejournals.cz/artkey/cjs-202010-0001_impact-of-x202f-calving-interval-on-x202f-milk-yield-and-longevity-of-x202f-primiparous-estonian-holstein-co.php |
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