Seasonal influence on follicular and luteal dynamics in dairy cows
The objective of study was to investigate the influence of season, viz. summer, winter, and isothermic (spring and autumn season), on follicular and luteal dynamics in dairy cows. Thirty dairy cows (n=10 in each season) were subjected to the ultrasonographic examination of ovarian structures, i.e....
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Indian Council of Agricultural Research
2023-10-01
|
| Series: | Indian Journal of Animal Sciences |
| Subjects: | |
| Online Access: | https://epubs.icar.org.in/index.php/IJAnS/article/view/129728 |
| _version_ | 1797644613790466048 |
|---|---|
| author | HARISH KUMAR PRAVESH KUMAR AKSHAY SHARMA PURURAVA SHARMA VIJENDER NEGI PANKAJ SOOD |
| author_facet | HARISH KUMAR PRAVESH KUMAR AKSHAY SHARMA PURURAVA SHARMA VIJENDER NEGI PANKAJ SOOD |
| author_sort | HARISH KUMAR |
| collection | DOAJ |
| description |
The objective of study was to investigate the influence of season, viz. summer, winter, and isothermic (spring and autumn season), on follicular and luteal dynamics in dairy cows. Thirty dairy cows (n=10 in each season) were subjected to the ultrasonographic examination of ovarian structures, i.e. follicle and corpus luteum, during two- and three-follicular waves in an estrous cycle using B-mode and colour doppler mode of ultrasonography. The daily temperature-humidity index (THI) was recorded to envisage its variation among different seasons. In results, the size of the dominant follicle was recorded to be significantly different in all seasons during the second follicular wave. However, all other parameters for follicle, i.e. day of wave onset, length of growth phase, duration of dominance, the maximum diameter of the largest sub-ordinate follicle, as well as luteal morphometric analysis had no significant difference among different seasons. On the other part, the THI varied significantly in different seasons with maximum THI in the summer (72.54), followed by the isothermic (64.7) and lowest in the winter season (54.12). As a part of summation, the seasonal impact was barely noteworthy on different aspects of follicular and luteal dynamics except for the size of dominant and sub-ordinate follicle in dairy cows.
|
| first_indexed | 2024-03-11T14:33:35Z |
| format | Article |
| id | doaj.art-af0b0f82d2544526bced2d68bd818936 |
| institution | Directory Open Access Journal |
| issn | 0367-8318 2394-3327 |
| language | English |
| last_indexed | 2024-03-11T14:33:35Z |
| publishDate | 2023-10-01 |
| publisher | Indian Council of Agricultural Research |
| record_format | Article |
| series | Indian Journal of Animal Sciences |
| spelling | doaj.art-af0b0f82d2544526bced2d68bd8189362023-10-31T07:21:29ZengIndian Council of Agricultural ResearchIndian Journal of Animal Sciences0367-83182394-33272023-10-01931110.56093/ijans.v93i11.129728Seasonal influence on follicular and luteal dynamics in dairy cowsHARISH KUMAR0PRAVESH KUMAR1AKSHAY SHARMA2PURURAVA SHARMA3VIJENDER NEGI4PANKAJ SOOD5CSK Himachal Pradesh Agricultural University, Palampur, Himachal Pradesh 176 062 IndiaCSK Himachal Pradesh Agricultural University, Palampur, Himachal Pradesh 176 062 IndiaCSK Himachal Pradesh Agricultural University, Palampur, Himachal Pradesh 176 062 IndiaCSK Himachal Pradesh Agricultural University, Palampur, Himachal Pradesh 176 062 IndiaCSK Himachal Pradesh Agricultural University, Palampur, Himachal Pradesh 176 062 IndiaCSK Himachal Pradesh Agricultural University, Palampur, Himachal Pradesh 176 062 India The objective of study was to investigate the influence of season, viz. summer, winter, and isothermic (spring and autumn season), on follicular and luteal dynamics in dairy cows. Thirty dairy cows (n=10 in each season) were subjected to the ultrasonographic examination of ovarian structures, i.e. follicle and corpus luteum, during two- and three-follicular waves in an estrous cycle using B-mode and colour doppler mode of ultrasonography. The daily temperature-humidity index (THI) was recorded to envisage its variation among different seasons. In results, the size of the dominant follicle was recorded to be significantly different in all seasons during the second follicular wave. However, all other parameters for follicle, i.e. day of wave onset, length of growth phase, duration of dominance, the maximum diameter of the largest sub-ordinate follicle, as well as luteal morphometric analysis had no significant difference among different seasons. On the other part, the THI varied significantly in different seasons with maximum THI in the summer (72.54), followed by the isothermic (64.7) and lowest in the winter season (54.12). As a part of summation, the seasonal impact was barely noteworthy on different aspects of follicular and luteal dynamics except for the size of dominant and sub-ordinate follicle in dairy cows. https://epubs.icar.org.in/index.php/IJAnS/article/view/129728Follicular dynamics, Seasonal variation, Temperature-humidity index |
| spellingShingle | HARISH KUMAR PRAVESH KUMAR AKSHAY SHARMA PURURAVA SHARMA VIJENDER NEGI PANKAJ SOOD Seasonal influence on follicular and luteal dynamics in dairy cows Indian Journal of Animal Sciences Follicular dynamics, Seasonal variation, Temperature-humidity index |
| title | Seasonal influence on follicular and luteal dynamics in dairy cows |
| title_full | Seasonal influence on follicular and luteal dynamics in dairy cows |
| title_fullStr | Seasonal influence on follicular and luteal dynamics in dairy cows |
| title_full_unstemmed | Seasonal influence on follicular and luteal dynamics in dairy cows |
| title_short | Seasonal influence on follicular and luteal dynamics in dairy cows |
| title_sort | seasonal influence on follicular and luteal dynamics in dairy cows |
| topic | Follicular dynamics, Seasonal variation, Temperature-humidity index |
| url | https://epubs.icar.org.in/index.php/IJAnS/article/view/129728 |
| work_keys_str_mv | AT harishkumar seasonalinfluenceonfollicularandlutealdynamicsindairycows AT praveshkumar seasonalinfluenceonfollicularandlutealdynamicsindairycows AT akshaysharma seasonalinfluenceonfollicularandlutealdynamicsindairycows AT pururavasharma seasonalinfluenceonfollicularandlutealdynamicsindairycows AT vijendernegi seasonalinfluenceonfollicularandlutealdynamicsindairycows AT pankajsood seasonalinfluenceonfollicularandlutealdynamicsindairycows |