Plasma progesterone changes and length of oestrous cycle in Rusa deer (Rusa timorensis)
A study was conducted to profile the plasma progesterone (P4) concentrations and establish the length of oestrous cycle in the Rusa timorensis during the breeding season. Five healthy hinds were selected for peripheral blood sampling twice weekly to gauge the P4 levels by radioimmunoassay, at the st...
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| Format: | Article |
| Language: | English |
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Elsevier
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/29863/ http://psasir.upm.edu.my/id/eprint/29863/1/Plasma%20progesterone%20changes%20and%20length%20of%20oestrous%20cycle%20in%20Rusa%20Deer.pdf |
| _version_ | 1848846517381627904 |
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| author | Mahre, Mohammed Bakari Haron, Abdul Wahid Yusoff, Rosnina Abdullah, Faez Firdaus Jesse Che' Amat, Azlan Yap, Chee Keng |
| author_facet | Mahre, Mohammed Bakari Haron, Abdul Wahid Yusoff, Rosnina Abdullah, Faez Firdaus Jesse Che' Amat, Azlan Yap, Chee Keng |
| author_sort | Mahre, Mohammed Bakari |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | A study was conducted to profile the plasma progesterone (P4) concentrations and establish the length of oestrous cycle in the Rusa timorensis during the breeding season. Five healthy hinds were selected for peripheral blood sampling twice weekly to gauge the P4 levels by radioimmunoassay, at the start of the breeding season indicated by rutting behaviours of sexually active males. The hinds were polyestrous as proven by the cyclic trend of P4 levels. After the presumptive oestrus indicated by the lowest P4 concentrations (0.20±0.09ng/ml), this ovarian hormone was markedly elevated on day 7 of the cycle (0.78±0.20ng/ml), reached its peak (2.61±0.23ng/ml, P<0.05) on day 14, and then declined to the basal level in the subsequent oestrus. The mean oestrous cycle length in R. timorensis during the breeding season was 19.2 days with a range of 18-21 days, and the pattern of circulating progesterone during the oestrous cycle of the R. timorensis is similar to those of other deer species. It was also observed that the length of oestrous cycle of R. timorensis determined by gauging the progesterone levels and observation of the oestrous behaviours as well as changes in the cellular pattern of vaginal epithelial cells are highly consistent. |
| first_indexed | 2025-11-15T09:03:58Z |
| format | Article |
| id | upm-29863 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:03:58Z |
| publishDate | 2013 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-298632016-02-11T09:04:30Z http://psasir.upm.edu.my/id/eprint/29863/ Plasma progesterone changes and length of oestrous cycle in Rusa deer (Rusa timorensis) Mahre, Mohammed Bakari Haron, Abdul Wahid Yusoff, Rosnina Abdullah, Faez Firdaus Jesse Che' Amat, Azlan Yap, Chee Keng A study was conducted to profile the plasma progesterone (P4) concentrations and establish the length of oestrous cycle in the Rusa timorensis during the breeding season. Five healthy hinds were selected for peripheral blood sampling twice weekly to gauge the P4 levels by radioimmunoassay, at the start of the breeding season indicated by rutting behaviours of sexually active males. The hinds were polyestrous as proven by the cyclic trend of P4 levels. After the presumptive oestrus indicated by the lowest P4 concentrations (0.20±0.09ng/ml), this ovarian hormone was markedly elevated on day 7 of the cycle (0.78±0.20ng/ml), reached its peak (2.61±0.23ng/ml, P<0.05) on day 14, and then declined to the basal level in the subsequent oestrus. The mean oestrous cycle length in R. timorensis during the breeding season was 19.2 days with a range of 18-21 days, and the pattern of circulating progesterone during the oestrous cycle of the R. timorensis is similar to those of other deer species. It was also observed that the length of oestrous cycle of R. timorensis determined by gauging the progesterone levels and observation of the oestrous behaviours as well as changes in the cellular pattern of vaginal epithelial cells are highly consistent. Elsevier 2013-08-12 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/29863/1/Plasma%20progesterone%20changes%20and%20length%20of%20oestrous%20cycle%20in%20Rusa%20Deer.pdf Mahre, Mohammed Bakari and Haron, Abdul Wahid and Yusoff, Rosnina and Abdullah, Faez Firdaus Jesse and Che' Amat, Azlan and Yap, Chee Keng (2013) Plasma progesterone changes and length of oestrous cycle in Rusa deer (Rusa timorensis). Animal Reproduction Science, 141 (3-4). pp. 148-153. ISSN 0378-4320; ESSN: 1873-2232 10.1016/j.anireprosci.2013.07.012 |
| spellingShingle | Mahre, Mohammed Bakari Haron, Abdul Wahid Yusoff, Rosnina Abdullah, Faez Firdaus Jesse Che' Amat, Azlan Yap, Chee Keng Plasma progesterone changes and length of oestrous cycle in Rusa deer (Rusa timorensis) |
| title | Plasma progesterone changes and length of oestrous cycle in Rusa deer (Rusa timorensis) |
| title_full | Plasma progesterone changes and length of oestrous cycle in Rusa deer (Rusa timorensis) |
| title_fullStr | Plasma progesterone changes and length of oestrous cycle in Rusa deer (Rusa timorensis) |
| title_full_unstemmed | Plasma progesterone changes and length of oestrous cycle in Rusa deer (Rusa timorensis) |
| title_short | Plasma progesterone changes and length of oestrous cycle in Rusa deer (Rusa timorensis) |
| title_sort | plasma progesterone changes and length of oestrous cycle in rusa deer (rusa timorensis) |
| url | http://psasir.upm.edu.my/id/eprint/29863/ http://psasir.upm.edu.my/id/eprint/29863/ http://psasir.upm.edu.my/id/eprint/29863/1/Plasma%20progesterone%20changes%20and%20length%20of%20oestrous%20cycle%20in%20Rusa%20Deer.pdf |