Postpartum Ovarian Activity In Sahiwal- Friesian Cows Fed Different Levels Of Energy
Postpartum ovarian function was determined by milk progesterone radio immunoassay in 21 first - calf Sahiwal-Friesian cows assigned to one of three treatment groups designated as low , medium an d high energy level sen=7 ) . The progesterone concentrations in defatted milk were determined thrice...
| Main Author: | |
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| Format: | Thesis |
| Language: | English English |
| Published: |
1984
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/12261/ http://psasir.upm.edu.my/id/eprint/12261/1/FPV_1984_1_.pdf |
| _version_ | 1848841796156653568 |
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| author | Haji Mohd Adam, Azillah |
| author_facet | Haji Mohd Adam, Azillah |
| author_sort | Haji Mohd Adam, Azillah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Postpartum ovarian function was determined by milk
progesterone radio immunoassay in 21 first - calf Sahiwal-Friesian
cows assigned to one of three treatment groups designated as
low , medium an d high energy level sen=7 ) . The progesterone concentrations in defatted milk were determined thrice weekly
for 120 days postpartum.
Mean interval to resumption of ovarian activity and t o
forst ovulation was longest in the low energy group and short -
est in t he high energy group . Using progesterone concentration
of>1ng/ml as criteria for corpus luteum activity , first ovulation occurred at 37.7 ± 18.0,26.6 ±15.7 and 25.3 ± 8.4 days
for low , medium and high energy groups , respectively. However ,
first estrus was observed at 28.0 ± 21.6,32.7+ 9.8 and 25.4+
6.0 days , respectively.The percentages of silent estrus were
13.6 percent , 29.6 percent and 14.3 percent for low , medium and high energy groups , respectively , with a majority ( 46.7
percent ) detected during the initial postpartum estrous cycle . |
| first_indexed | 2025-11-15T07:48:56Z |
| format | Thesis |
| id | upm-12261 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T07:48:56Z |
| publishDate | 1984 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-122612024-07-10T06:44:00Z http://psasir.upm.edu.my/id/eprint/12261/ Postpartum Ovarian Activity In Sahiwal- Friesian Cows Fed Different Levels Of Energy Haji Mohd Adam, Azillah Postpartum ovarian function was determined by milk progesterone radio immunoassay in 21 first - calf Sahiwal-Friesian cows assigned to one of three treatment groups designated as low , medium an d high energy level sen=7 ) . The progesterone concentrations in defatted milk were determined thrice weekly for 120 days postpartum. Mean interval to resumption of ovarian activity and t o forst ovulation was longest in the low energy group and short - est in t he high energy group . Using progesterone concentration of>1ng/ml as criteria for corpus luteum activity , first ovulation occurred at 37.7 ± 18.0,26.6 ±15.7 and 25.3 ± 8.4 days for low , medium and high energy groups , respectively. However , first estrus was observed at 28.0 ± 21.6,32.7+ 9.8 and 25.4+ 6.0 days , respectively.The percentages of silent estrus were 13.6 percent , 29.6 percent and 14.3 percent for low , medium and high energy groups , respectively , with a majority ( 46.7 percent ) detected during the initial postpartum estrous cycle . 1984-04 Thesis NonPeerReviewed text en http://psasir.upm.edu.my/id/eprint/12261/1/FPV_1984_1_.pdf Haji Mohd Adam, Azillah (1984) Postpartum Ovarian Activity In Sahiwal- Friesian Cows Fed Different Levels Of Energy. Masters thesis, Universiti Pertanian Malaysia. Cattle - Reproduction English |
| spellingShingle | Cattle - Reproduction Haji Mohd Adam, Azillah Postpartum Ovarian Activity In Sahiwal- Friesian Cows Fed Different Levels Of Energy |
| title | Postpartum Ovarian Activity In Sahiwal- Friesian Cows Fed Different Levels Of Energy |
| title_full | Postpartum Ovarian Activity In Sahiwal- Friesian Cows Fed Different Levels Of Energy |
| title_fullStr | Postpartum Ovarian Activity In Sahiwal- Friesian Cows Fed Different Levels Of Energy |
| title_full_unstemmed | Postpartum Ovarian Activity In Sahiwal- Friesian Cows Fed Different Levels Of Energy |
| title_short | Postpartum Ovarian Activity In Sahiwal- Friesian Cows Fed Different Levels Of Energy |
| title_sort | postpartum ovarian activity in sahiwal- friesian cows fed different levels of energy |
| topic | Cattle - Reproduction |
| url | http://psasir.upm.edu.my/id/eprint/12261/ http://psasir.upm.edu.my/id/eprint/12261/1/FPV_1984_1_.pdf |