Ovarian follicular dynamics in peripubertal Malabari goats
The aim of this study was to characterise the follicular dynamics in first two oestrous cycles of peripubertal Malabari goats. Transrectal ultrasonography was carried out on alternate days of oestrous cycles after first observed oestrus. Follicular studies revealed presence of two to five wave cy...
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Director of Academics and Research, Kerala Veterinary and Animal Sciences University
2022-12-01
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| Series: | Journal of Veterinary and Animal Sciences |
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| Online Access: | https://jvas.in/public_html/upload/article_file/article_file_ropzr7.pdf?t=ropzr7 |
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| author | Amritha Aravind Shibu Simon C. Jayakumar R.S. Abhilash R.T. Venkatachalapathy K. Raji V. L. Gleeja |
| author_facet | Amritha Aravind Shibu Simon C. Jayakumar R.S. Abhilash R.T. Venkatachalapathy K. Raji V. L. Gleeja |
| author_sort | Amritha Aravind |
| collection | DOAJ |
| description | The aim of this study was to characterise the follicular dynamics in first two oestrous cycles
of peripubertal Malabari goats. Transrectal ultrasonography was carried out on alternate days of
oestrous cycles after first observed oestrus. Follicular studies revealed presence of two to five wave
cycles with predominant three and four wave patterns. The interwave interval for ovulatory wave
was longer than preceding waves in three and five wave cycles. The diameter of largest follicles
in wave 1 was larger than follicles of subsequent waves of three, four and five wave cycles. The
largest follicles in each wave could be observed from day 3 to day 13 of oestrous cycle. Majority of
ovulations occurred on day 20 of oestrous cycles and short cycles were more in first oestrous cycle.
The overall mean per cent of single and double ovulations were 56.3 and 43.8 and mean ovulatory
follicle size was 6.59 ± 0.11 mm in peripubertal goats. The mean length of first and second oestrous
cycle was observed as 17.72± 0.79 and 20.19± 0.43 days, respectively and mean duration of
first and second oestrus was 36.88 ± 2.44 and 40.13 ± 1.84 h, respectively. The study revealed
that predominant wave pattern was three and four waves in peripubertal Malabari breeds. The first
oestrous cycle length was shorter and characterised by higher percentage of single ovulations with
smaller periovulatory follicle size. Larger ovulatory follicles and double ovulations were observed in
second oestrous cycle. |
| first_indexed | 2024-04-10T21:38:10Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 0971-0701 2582-0605 |
| language | English |
| last_indexed | 2024-04-10T21:38:10Z |
| publishDate | 2022-12-01 |
| publisher | Director of Academics and Research, Kerala Veterinary and Animal Sciences University |
| record_format | Article |
| series | Journal of Veterinary and Animal Sciences |
| spelling | doaj.art-7cd2391c683b43a48096a58204c1db3e2023-01-19T09:16:09ZengDirector of Academics and Research, Kerala Veterinary and Animal Sciences UniversityJournal of Veterinary and Animal Sciences0971-07012582-06052022-12-0153452953410.51966/jvas.2022.53.4.529-534Ovarian follicular dynamics in peripubertal Malabari goatsAmritha Aravind0https://orcid.org/0000-0002-8470-7454Shibu Simon1https://orcid.org/0000-0002-4528-548XC. Jayakumar2https://orcid.org/0000-0002-8142-4096R.S. Abhilash3https://orcid.org/0000-0002-7322-0843R.T. Venkatachalapathy 4https://orcid.org/0000-0003-3733-738XK. Raji 5https://orcid.org/0000-0001-5655-1694V. L. Gleeja6https://orcid.org/0000-0002-5908-1066Ph. D scholar, Department of Animal Reproduction, Gynaecology and Obstetrics College of Veterinary and Animal Sciences, Mannuthy, Thrissur- 680 651. Kerala Veterinary and Animal Sciences University, Kerala, India.Assistant Professor, Department of Animal Reproduction, Gynaecology and Obstetrics College of Veterinary and Animal Sciences, Mannuthy, Thrissur- 680 651. Kerala Veterinary and Animal Sciences University, Kerala, India.Assistant Professor and Head (i/c), Department of Animal Reproduction, Gynaecology and Obstetrics College of Veterinary and Animal Sciences, Mannuthy, Thrissur- 680 651. Kerala Veterinary and Animal Sciences University, Kerala, India.Assistant Professor, Department of Animal Reproduction, Gynaecology and Obstetrics College of Veterinary and Animal Sciences, Mannuthy, Thrissur- 680 651. Kerala Veterinary and Animal Sciences University, Kerala, India.Professor, Department of Animal Genetics and Breeding, College of Veterinary and Animal Sciences, Mannuthy, Thrissur- 680 651. Kerala Veterinary and Animal Sciences University, Kerala, India.Associate Professor and Head, Department of Veterinary Physiology, College of Veterinary and Animal Sciences, Pookode, Kerala Veterinary and Animal Sciences University, Kerala, India.Assistant Professor, Department of Statistics, College of Veterinary and Animal Sciences, Mannuthy, Thrissur- 680 651. Kerala Veterinary and Animal Sciences University, Kerala, India. The aim of this study was to characterise the follicular dynamics in first two oestrous cycles of peripubertal Malabari goats. Transrectal ultrasonography was carried out on alternate days of oestrous cycles after first observed oestrus. Follicular studies revealed presence of two to five wave cycles with predominant three and four wave patterns. The interwave interval for ovulatory wave was longer than preceding waves in three and five wave cycles. The diameter of largest follicles in wave 1 was larger than follicles of subsequent waves of three, four and five wave cycles. The largest follicles in each wave could be observed from day 3 to day 13 of oestrous cycle. Majority of ovulations occurred on day 20 of oestrous cycles and short cycles were more in first oestrous cycle. The overall mean per cent of single and double ovulations were 56.3 and 43.8 and mean ovulatory follicle size was 6.59 ± 0.11 mm in peripubertal goats. The mean length of first and second oestrous cycle was observed as 17.72± 0.79 and 20.19± 0.43 days, respectively and mean duration of first and second oestrus was 36.88 ± 2.44 and 40.13 ± 1.84 h, respectively. The study revealed that predominant wave pattern was three and four waves in peripubertal Malabari breeds. The first oestrous cycle length was shorter and characterised by higher percentage of single ovulations with smaller periovulatory follicle size. Larger ovulatory follicles and double ovulations were observed in second oestrous cycle.https://jvas.in/public_html/upload/article_file/article_file_ropzr7.pdf?t=ropzr7follicular dynamicsperipubertal malabari goats |
| spellingShingle | Amritha Aravind Shibu Simon C. Jayakumar R.S. Abhilash R.T. Venkatachalapathy K. Raji V. L. Gleeja Ovarian follicular dynamics in peripubertal Malabari goats Journal of Veterinary and Animal Sciences follicular dynamics peripubertal malabari goats |
| title | Ovarian follicular dynamics in peripubertal Malabari goats |
| title_full | Ovarian follicular dynamics in peripubertal Malabari goats |
| title_fullStr | Ovarian follicular dynamics in peripubertal Malabari goats |
| title_full_unstemmed | Ovarian follicular dynamics in peripubertal Malabari goats |
| title_short | Ovarian follicular dynamics in peripubertal Malabari goats |
| title_sort | ovarian follicular dynamics in peripubertal malabari goats |
| topic | follicular dynamics peripubertal malabari goats |
| url | https://jvas.in/public_html/upload/article_file/article_file_ropzr7.pdf?t=ropzr7 |
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