Supplementation of dairy cows with docosahexaenoic acid did not affect ovarian activity
The effect of docosahexaenoic acid (DHA) on ovarian activity of dairy cows was determined. Experimental cows (n = 25) were fed a total mixed ration supplemented daily with 100 g/cow of an algae product All-G-Rich (Alltech, Ireland) containing 10% DHA divided into 2 doses for 52 days. Determination o...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2017-11-01
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| Series: | Czech Journal of Animal Science |
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| Online Access: | https://cjas.agriculturejournals.cz/artkey/cjs-201711-0001_supplementation-of-dairy-cows-with-docosahexaenoic-acid-did-not-affect-ovarian-activity.php |
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| author | Martin Vlcek Michaela Andrlikova Olimpia Barbato Vladislav Bina Maurice P. Boland Radovan Dolezel Miloslava Lopatarova Svatopluk Cech |
| author_facet | Martin Vlcek Michaela Andrlikova Olimpia Barbato Vladislav Bina Maurice P. Boland Radovan Dolezel Miloslava Lopatarova Svatopluk Cech |
| author_sort | Martin Vlcek |
| collection | DOAJ |
| description | The effect of docosahexaenoic acid (DHA) on ovarian activity of dairy cows was determined. Experimental cows (n = 25) were fed a total mixed ration supplemented daily with 100 g/cow of an algae product All-G-Rich (Alltech, Ireland) containing 10% DHA divided into 2 doses for 52 days. Determination of DHA from milk samples taken from all cows was performed before the All-G-Rich supplementation (on Day 0, D0), and on D21 and D42 of algae supplementation. Cows were synchronized to be in oestrus on D21 and D42 of the experimental period. Monitoring of ovarian activity was performed by transrectal ultrasonography. Examinations were performed at 2-3-day intervals from D0 until D52 of the experimental period. Plasma concentrations of progesterone, oestradiol, insulin, NEFA, and cholesterol were determined. Control cows (n = 25) were examined in the same way as the experimental cows. Milk DHA concentrations on D21 and D42 were significantly higher in treated cows (D21 1.38 vs 0.28, P < 0.0001; D42 1.34 vs 0.20, P < 0.0001). There were neither important effects of DHA on ovarian structures, nor on evaluated variables in plasma. Cows in the experimental group tended to have larger corpora lutea and higher cholesterol concentrations, but differences were not significant. |
| first_indexed | 2024-04-10T08:25:27Z |
| format | Article |
| id | doaj.art-c6c3adf1d65b44f4a95ebb22bd1a3299 |
| institution | Directory Open Access Journal |
| issn | 1212-1819 1805-9309 |
| language | English |
| last_indexed | 2024-04-10T08:25:27Z |
| publishDate | 2017-11-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Czech Journal of Animal Science |
| spelling | doaj.art-c6c3adf1d65b44f4a95ebb22bd1a32992023-02-23T03:33:30ZengCzech Academy of Agricultural SciencesCzech Journal of Animal Science1212-18191805-93092017-11-01621145746510.17221/44/2017-CJAScjs-201711-0001Supplementation of dairy cows with docosahexaenoic acid did not affect ovarian activityMartin Vlcek0Michaela Andrlikova1Olimpia Barbato2Vladislav Bina3Maurice P. Boland4Radovan Dolezel5Miloslava Lopatarova6Svatopluk Cech7University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech RepublicUniversity of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech RepublicUniversity of Perugia, Perugia, ItalyUniversity of Economics, Prague, Czech RepublicAlltech, Dunboyne, IrelandUniversity of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech RepublicUniversity of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech RepublicUniversity of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech RepublicThe effect of docosahexaenoic acid (DHA) on ovarian activity of dairy cows was determined. Experimental cows (n = 25) were fed a total mixed ration supplemented daily with 100 g/cow of an algae product All-G-Rich (Alltech, Ireland) containing 10% DHA divided into 2 doses for 52 days. Determination of DHA from milk samples taken from all cows was performed before the All-G-Rich supplementation (on Day 0, D0), and on D21 and D42 of algae supplementation. Cows were synchronized to be in oestrus on D21 and D42 of the experimental period. Monitoring of ovarian activity was performed by transrectal ultrasonography. Examinations were performed at 2-3-day intervals from D0 until D52 of the experimental period. Plasma concentrations of progesterone, oestradiol, insulin, NEFA, and cholesterol were determined. Control cows (n = 25) were examined in the same way as the experimental cows. Milk DHA concentrations on D21 and D42 were significantly higher in treated cows (D21 1.38 vs 0.28, P < 0.0001; D42 1.34 vs 0.20, P < 0.0001). There were neither important effects of DHA on ovarian structures, nor on evaluated variables in plasma. Cows in the experimental group tended to have larger corpora lutea and higher cholesterol concentrations, but differences were not significant.https://cjas.agriculturejournals.cz/artkey/cjs-201711-0001_supplementation-of-dairy-cows-with-docosahexaenoic-acid-did-not-affect-ovarian-activity.phpalgaefolliclecorpus luteumoestrusoestradiolprogesteronemilkdha |
| spellingShingle | Martin Vlcek Michaela Andrlikova Olimpia Barbato Vladislav Bina Maurice P. Boland Radovan Dolezel Miloslava Lopatarova Svatopluk Cech Supplementation of dairy cows with docosahexaenoic acid did not affect ovarian activity Czech Journal of Animal Science algae follicle corpus luteum oestrus oestradiol progesterone milk dha |
| title | Supplementation of dairy cows with docosahexaenoic acid did not affect ovarian activity |
| title_full | Supplementation of dairy cows with docosahexaenoic acid did not affect ovarian activity |
| title_fullStr | Supplementation of dairy cows with docosahexaenoic acid did not affect ovarian activity |
| title_full_unstemmed | Supplementation of dairy cows with docosahexaenoic acid did not affect ovarian activity |
| title_short | Supplementation of dairy cows with docosahexaenoic acid did not affect ovarian activity |
| title_sort | supplementation of dairy cows with docosahexaenoic acid did not affect ovarian activity |
| topic | algae follicle corpus luteum oestrus oestradiol progesterone milk dha |
| url | https://cjas.agriculturejournals.cz/artkey/cjs-201711-0001_supplementation-of-dairy-cows-with-docosahexaenoic-acid-did-not-affect-ovarian-activity.php |
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