Phenotypic correlations between reproductive characteristics related to litter and reproductive cycle length in sows
The study estimated phenotypic correlations between reproductive traits in sows classified as maternal (Polish Large White, Polish Landrace, and Yorkshire) and paternal (Duroc, Berkshire, and Hampshire) components, kept on farms located in Poland and in the United States. Altogether, it used data on...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2020-06-01
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| Series: | Czech Journal of Animal Science |
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| Online Access: | https://cjas.agriculturejournals.cz/artkey/cjs-202006-0002_phenotypic-correlations-between-reproductive-characteristics-related-to-x202f-litter-and-reproductive-cycle-le.php |
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| author | Błażej Nowak Anna Mucha Wojciech Kruszyński Magdalena Moska |
| author_facet | Błażej Nowak Anna Mucha Wojciech Kruszyński Magdalena Moska |
| author_sort | Błażej Nowak |
| collection | DOAJ |
| description | The study estimated phenotypic correlations between reproductive traits in sows classified as maternal (Polish Large White, Polish Landrace, and Yorkshire) and paternal (Duroc, Berkshire, and Hampshire) components, kept on farms located in Poland and in the United States. Altogether, it used data on 736 litters from 196 sows to analyse traits related to litter and reproductive cycle length. The former included litter size, the numbers and the percentages of piglets born alive, stillborn, and weaned; the latter included gestation length, lactation length, and the lengths of weaning-to-conception, farrowing-to-conception, and farrowing intervals. The strongest positive correlations between the litter-related traits were those between litter size and the number of piglets born alive (0.90), the number and the percentage of piglets born alive (0.88), the numbers of piglets born alive and weaned (0.78), and litter size and the number of weaned piglets (0.68); the strongest negative correlations were between the percentage of piglets born alive and the percentage (-0.95) and the number (-0.82) of stillborn piglets. Among the traits related to reproductive cycle length, the strongest positive correlations were those between the length of weaning-to-conception interval and the lengths of farrowing-to-conception (0.96) and farrowing (0.97) intervals, and between the length of farrowing-to-conception interval and farrowing interval (0.98). Gestation length and lactation length were weakly negatively correlated (-0.25). Correlation coefficients between the traits related to litter size from one side and reproductive cycle length from the other were low and mostly statistically non-significant, suggesting that using phenotypic correlations can help improve economically important reproductive traits, but only within the two above-mentioned groups of traits. |
| first_indexed | 2024-04-10T08:24:37Z |
| format | Article |
| id | doaj.art-09304cb4d3c442cfb9f2ad149d7a8ebc |
| institution | Directory Open Access Journal |
| issn | 1212-1819 1805-9309 |
| language | English |
| last_indexed | 2024-04-10T08:24:37Z |
| publishDate | 2020-06-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Czech Journal of Animal Science |
| spelling | doaj.art-09304cb4d3c442cfb9f2ad149d7a8ebc2023-02-23T03:33:45ZengCzech Academy of Agricultural SciencesCzech Journal of Animal Science1212-18191805-93092020-06-0165620521210.17221/108/2020-CJAScjs-202006-0002Phenotypic correlations between reproductive characteristics related to litter and reproductive cycle length in sowsBłażej NowakAnna Mucha0Wojciech Kruszyński1Magdalena Moska2Department of Genetics, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Sciences, Wrocław, PolandDepartment of Genetics, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Sciences, Wrocław, PolandDepartment of Genetics, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Sciences, Wrocław, PolandThe study estimated phenotypic correlations between reproductive traits in sows classified as maternal (Polish Large White, Polish Landrace, and Yorkshire) and paternal (Duroc, Berkshire, and Hampshire) components, kept on farms located in Poland and in the United States. Altogether, it used data on 736 litters from 196 sows to analyse traits related to litter and reproductive cycle length. The former included litter size, the numbers and the percentages of piglets born alive, stillborn, and weaned; the latter included gestation length, lactation length, and the lengths of weaning-to-conception, farrowing-to-conception, and farrowing intervals. The strongest positive correlations between the litter-related traits were those between litter size and the number of piglets born alive (0.90), the number and the percentage of piglets born alive (0.88), the numbers of piglets born alive and weaned (0.78), and litter size and the number of weaned piglets (0.68); the strongest negative correlations were between the percentage of piglets born alive and the percentage (-0.95) and the number (-0.82) of stillborn piglets. Among the traits related to reproductive cycle length, the strongest positive correlations were those between the length of weaning-to-conception interval and the lengths of farrowing-to-conception (0.96) and farrowing (0.97) intervals, and between the length of farrowing-to-conception interval and farrowing interval (0.98). Gestation length and lactation length were weakly negatively correlated (-0.25). Correlation coefficients between the traits related to litter size from one side and reproductive cycle length from the other were low and mostly statistically non-significant, suggesting that using phenotypic correlations can help improve economically important reproductive traits, but only within the two above-mentioned groups of traits.https://cjas.agriculturejournals.cz/artkey/cjs-202006-0002_phenotypic-correlations-between-reproductive-characteristics-related-to-x202f-litter-and-reproductive-cycle-le.phppigslitter sizefarrowing intervalphenotypic correlationpca |
| spellingShingle | Błażej Nowak Anna Mucha Wojciech Kruszyński Magdalena Moska Phenotypic correlations between reproductive characteristics related to litter and reproductive cycle length in sows Czech Journal of Animal Science pigs litter size farrowing interval phenotypic correlation pca |
| title | Phenotypic correlations between reproductive characteristics related to litter and reproductive cycle length in sows |
| title_full | Phenotypic correlations between reproductive characteristics related to litter and reproductive cycle length in sows |
| title_fullStr | Phenotypic correlations between reproductive characteristics related to litter and reproductive cycle length in sows |
| title_full_unstemmed | Phenotypic correlations between reproductive characteristics related to litter and reproductive cycle length in sows |
| title_short | Phenotypic correlations between reproductive characteristics related to litter and reproductive cycle length in sows |
| title_sort | phenotypic correlations between reproductive characteristics related to litter and reproductive cycle length in sows |
| topic | pigs litter size farrowing interval phenotypic correlation pca |
| url | https://cjas.agriculturejournals.cz/artkey/cjs-202006-0002_phenotypic-correlations-between-reproductive-characteristics-related-to-x202f-litter-and-reproductive-cycle-le.php |
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