Effects of presence or absence of a dominant follicle estimated by a single ultrasound examination at the time of follicular aspiration on superovulatory responses and embryo production in lactating simmental cows
The aim of the study was to evaluate effects of presence or absence of a dominant follicle (DF) estimated by a single ultrasound examination at the time of follicular aspiration (FA) on superstimulatory and superovulatory responses and embryo production in lactating Simmental cows. At random stages...
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| Format: | Article |
| Language: | English |
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Kafkas University, Faculty of Veterinary Medicine
2019-03-01
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| Series: | Kafkas Universitesi Veteriner Fakültesi Dergisi |
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| Online Access: | https://vetdergikafkas.org/pdf.php?id=2505 |
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| author | Ümüt CİRİT Mehmet Ferit ÖZMEN Mehmet KÖSE İbrahim KÜÇÜKASLAN Elif Merve ÇINAR Hüseyin Gökhan KUTSAL |
| author_facet | Ümüt CİRİT Mehmet Ferit ÖZMEN Mehmet KÖSE İbrahim KÜÇÜKASLAN Elif Merve ÇINAR Hüseyin Gökhan KUTSAL |
| author_sort | Ümüt CİRİT |
| collection | DOAJ |
| description | The aim of the study was to evaluate effects of presence or absence of a dominant follicle (DF) estimated by a single ultrasound examination at
the time of follicular aspiration (FA) on superstimulatory and superovulatory responses and embryo production in lactating Simmental cows. At
random stages of the estrous cycle, the ovaries of cows (n=42) were examined by transrectal ultrasonography (US) and all follicles ≥3 mm were
counted. Donors with <10 follicles 3-8 mm in diameter were considered to have a dominant follicle (group DF+; n=30), while donors ≥10 small
follicles 3-8 mm were classified as having no dominant follicle (group DF–; n=12). Just after US examination, all cows were subjected to ultrasoundguided
transvaginal aspiration of all follicles ≥5 mm and a progesterone-releasing device was placed in the vagina. Thirty-six h after FA, all cows were
superstimulated with FSH, which was given as twice-daily injections over 6 days. Cows were pre-treated with a single dose of 400 IU of eCG 24 h before
the start of FSH treatments. It was concluded from this study that the presence of a DF estimated by a single ultrasound examination at the time of FA
effects negatively the superstimulatory and superovulatory responses, fertilization rate and embryo quality (P<0.05) but not the number of embryos
collected. It was also concluded that estimation of a dominant follicle by a single ultrasound examination at the time of follicular aspiration based on
the number of small follicles may be used the selection of potential donor cows and can significantly contribute to improvements in superstimulatory
and superovulatory responses and embryo quality. |
| first_indexed | 2024-03-13T04:38:46Z |
| format | Article |
| id | doaj.art-dc2e7bb8713c48199be429a3acffbfbf |
| institution | Directory Open Access Journal |
| issn | 1309-2251 |
| language | English |
| last_indexed | 2024-03-13T04:38:46Z |
| publishDate | 2019-03-01 |
| publisher | Kafkas University, Faculty of Veterinary Medicine |
| record_format | Article |
| series | Kafkas Universitesi Veteriner Fakültesi Dergisi |
| spelling | doaj.art-dc2e7bb8713c48199be429a3acffbfbf2023-06-19T06:34:12ZengKafkas University, Faculty of Veterinary MedicineKafkas Universitesi Veteriner Fakültesi Dergisi1309-22512019-03-0125562763210.9775/kvfd.2018.214722505Effects of presence or absence of a dominant follicle estimated by a single ultrasound examination at the time of follicular aspiration on superovulatory responses and embryo production in lactating simmental cowsÜmüt CİRİT0Mehmet Ferit ÖZMEN1Mehmet KÖSE2İbrahim KÜÇÜKASLAN3Elif Merve ÇINAR4Hüseyin Gökhan KUTSAL5Dicle University, Faculty of Veterinary Medicine, Department of Reproduction and Artificial Insemination, TR-21280 Diyarbakir - TURKEYDicle University, Faculty of Veterinary Medicine, Department of Reproduction and Artificial Insemination, TR-21280 Diyarbakir - TURKEYDicle University, Faculty of Veterinary Medicine, Department of Obstetrics and Gynecology, TR-21280 Diyarbakir - TURKEYDicle University, Faculty of Veterinary Medicine, Department of Obstetrics and Gynecology, TR-21280 Diyarbakir - TURKEYTIGEM Ceylanpinar Directorate of Agricultural Enterprise, Ceylanpinar, TR-63570 Sanliurfa - TURKEYTIGEM Ceylanpinar Directorate of Agricultural Enterprise, Ceylanpinar, TR-63570 Sanliurfa - TURKEYThe aim of the study was to evaluate effects of presence or absence of a dominant follicle (DF) estimated by a single ultrasound examination at the time of follicular aspiration (FA) on superstimulatory and superovulatory responses and embryo production in lactating Simmental cows. At random stages of the estrous cycle, the ovaries of cows (n=42) were examined by transrectal ultrasonography (US) and all follicles ≥3 mm were counted. Donors with <10 follicles 3-8 mm in diameter were considered to have a dominant follicle (group DF+; n=30), while donors ≥10 small follicles 3-8 mm were classified as having no dominant follicle (group DF–; n=12). Just after US examination, all cows were subjected to ultrasoundguided transvaginal aspiration of all follicles ≥5 mm and a progesterone-releasing device was placed in the vagina. Thirty-six h after FA, all cows were superstimulated with FSH, which was given as twice-daily injections over 6 days. Cows were pre-treated with a single dose of 400 IU of eCG 24 h before the start of FSH treatments. It was concluded from this study that the presence of a DF estimated by a single ultrasound examination at the time of FA effects negatively the superstimulatory and superovulatory responses, fertilization rate and embryo quality (P<0.05) but not the number of embryos collected. It was also concluded that estimation of a dominant follicle by a single ultrasound examination at the time of follicular aspiration based on the number of small follicles may be used the selection of potential donor cows and can significantly contribute to improvements in superstimulatory and superovulatory responses and embryo quality.https://vetdergikafkas.org/pdf.php?id=2505superovulationcattlefollicle aspirationecgfsh |
| spellingShingle | Ümüt CİRİT Mehmet Ferit ÖZMEN Mehmet KÖSE İbrahim KÜÇÜKASLAN Elif Merve ÇINAR Hüseyin Gökhan KUTSAL Effects of presence or absence of a dominant follicle estimated by a single ultrasound examination at the time of follicular aspiration on superovulatory responses and embryo production in lactating simmental cows Kafkas Universitesi Veteriner Fakültesi Dergisi superovulation cattle follicle aspiration ecg fsh |
| title | Effects of presence or absence of a dominant follicle estimated by a single ultrasound examination at the time of follicular aspiration on superovulatory responses and embryo production in lactating simmental cows |
| title_full | Effects of presence or absence of a dominant follicle estimated by a single ultrasound examination at the time of follicular aspiration on superovulatory responses and embryo production in lactating simmental cows |
| title_fullStr | Effects of presence or absence of a dominant follicle estimated by a single ultrasound examination at the time of follicular aspiration on superovulatory responses and embryo production in lactating simmental cows |
| title_full_unstemmed | Effects of presence or absence of a dominant follicle estimated by a single ultrasound examination at the time of follicular aspiration on superovulatory responses and embryo production in lactating simmental cows |
| title_short | Effects of presence or absence of a dominant follicle estimated by a single ultrasound examination at the time of follicular aspiration on superovulatory responses and embryo production in lactating simmental cows |
| title_sort | effects of presence or absence of a dominant follicle estimated by a single ultrasound examination at the time of follicular aspiration on superovulatory responses and embryo production in lactating simmental cows |
| topic | superovulation cattle follicle aspiration ecg fsh |
| url | https://vetdergikafkas.org/pdf.php?id=2505 |
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