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Publication
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| Title of Article |
Corpora Lutea Growth and Development in Thai-native Goats Throughout
the Estrous Cycle |
| Date of Acceptance |
11 September 2012 |
| Journal |
| Title of Journal |
Chiang Mai University Journal of Natural Sciences (CMUJ of Nat.Sci.) |
| Standard |
SCOPUS |
| Institute of Journal |
คณะสัตวแพทยศาสตร์ มหาวิทยาลัยเชียงใหม่ |
| ISBN/ISSN |
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| Volume |
2012 |
| Issue |
11 |
| Month |
กันยายน |
| Year of Publication |
2016 |
| Page |
455-459 |
| Abstract |
This study was conducted to determine the growth and development of corpora lutea (CL)
in Thai-native goats throughout the estrous cycle. Non pregnant Thai-native goats (n=12), 8
months of age were randomly assigned for estrous synchronization and superovulation protocols
(progesterone 14 days+PMSG vs. progesterone 14 days+FSH). After progesterone removal, goats
underwent laparotomy to determine number of CL post ovulation at 24, 48, 72 and 96 h. Blood
sample were taken for progesterone concentration throughout the estrous cycle. Number of CL
in goats receiving the protocols were not significantly different at times after ovulation (P>0.05)
except for at 24 h (P=0.04). Concentration of plasma progesterone (P4) were not significantly
different among goats difference in CL numbers (1, 2 and 3), with the concentration of 6.36,
5.45 and 5.72 ng/ml respectively. Plasma P4 concentrations of goats were low (<1 ng/ml)
during the first 5 days of the estrous cycle, but significantly increased by day 7 (2.05 ng/ml),
due to the presence of the developing CL. By day 19, the P4 concentration was less than 1 ng/
ml due to the regression of CL. Goats underwent laparotomy to collect the ovary and CL using
bilateral ovariectomy. Fresh weight of ovaries and CL were 841.8±164.47 and 311.75±63.59 mg,
respectively. Percentages of ovarian weight represented by luteal and non-luteal tissues were
43.93 and 56.07%, respectively. The study was also indicated that estrous synchronization and
superovulation protocols were not affected the number of CL. In addition, growth and development
of CL gradually increased in early, but rapidly increased in mature or growing CL until
day 13 or 14 due to the peak of P4 concentration. The regression of CL or luteolysis occurred
between day 16 or 17 due to the secretion of PGF2α. |
| Keyword |
Corpora lutea, Growth and development, Thai-native goat |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
นานาชาติ |
| citation |
false |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Journal Publication
ไทย