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- Title
Progesterone supplementation during multiple ovulation treatment in buffalo species ( Bubalus bubalis).
- Authors
Neglia, Gianluca; Gasparrini, Bianca; Vecchio, Domenico; Rubessa, Marcello; Palo, Rossella; Zicarelli, Luigi; Campanile, Giuseppe
- Abstract
The aim of this study was to evaluate the effect of exogenous progesterone supplementation on superovulatory response in buffaloes that has undergone a multiple ovulation program. Fourteen Mediterranean buffaloes were divided into two groups and received a 4-day decreasing dosage of an equal mixture of 500 IU of FSH and LH starting on day 8 of the cycle. In group A ( n = 7) a progesterone-releasing intravaginal device was removed on day 8, whereas in group B ( n = 7) it was left till day 10, when $$ {\hbox{PG}}{{\hbox{F}}_{{2}\alpha }} $$ was administered. Eighty hours later, buffaloes were artificially inseminated and after 6 days they undergone uterine flushing. A higher ( P < 0.05) number of corpora lutea (8.3 vs. 5.7) and embryo/flushing/buffalo (2.3 vs. 1.3) were recorded in group B vs. group A if responsive buffaloes are considered ( n = 12) and the number of corpora lutea was highly correlated with the number of embryos ( r = 0.65; P < 0.05). In conclusion, progesterone supplementation during the first 2 days of the superovulation treatment seems to enhance the recovery rate in buffalo species. A high ovulation rate, associated with a high number of corpora lutea, can represent a parameter for estimating embryo recovery.
- Subjects
ARTIFICIAL insemination of cattle; INDUCED ovulation; PROGESTERONE; WATER buffalo; FOLLICLE-stimulating hormone; LUTEINIZING hormone; EMBRYOLOGY
- Publication
Tropical Animal Health & Production, 2010, Vol 42, Issue 6, p1243
- ISSN
0049-4747
- Publication type
Article
- DOI
10.1007/s11250-010-9556-8