Contributions of Maternal Serum Progesterone and Estradiol Concentrations or Corpora Luteal and Fetal Number to Mammary Growth and Development of Ewes During Pregnancy
ABSTRACT Sixteen ewes with similar weight and age were used m an experiment, and injected twice with PGF2 before being bred. Number of corpora lutea was detennined 5 d after the onset of estrous cycle by laparoscopy. Number of ewes haying 0, 1, 2, 3, and 3 corpora lutea were 3, 2, 5, 4, and 2, respe...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article NonPeerReviewed |
| Published: |
[Yogyakarta] : Universitas Gadjah Mada
1995
|
| Subjects: | |
| Online Access: | https://repository.ugm.ac.id/26600/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=9633 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Universitas Gadjah Mada |
| Summary: | ABSTRACT
Sixteen ewes with similar weight and age were used m an experiment, and injected twice with PGF2 before being bred. Number of corpora lutea was detennined 5 d after the onset of estrous cycle by laparoscopy. Number of ewes haying 0, 1, 2, 3, and 3 corpora lutea were 3, 2, 5, 4, and 2, respectively. At parturition date, the number of ewes gave birth to 0, 1, 2. 3, and 4 lambs were 3, 6, 4, 2, and l, rcspectivdy. Blood samples were collected every other week during pregnancy for
progesterone and estradiol analyses with
radiounmunoassay. At parturition date, the experimental ewes were sacrificed and the mammary glands were excised for determination of dry-fat-free
tissue (DFF0. Multiple regression and correlation was used to determine the relationships of serum progesterone and estradiol concentrations and of corpora luteal and fetal number with mammary
Keywords: Sheep, Corpus luteum, Fetal number, Progesterone, Estradici, Mammary Growth |
|---|