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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Khan, F. A. Das, G. K. Pande, Megha Sarkar, M. Mahapatra, R. K. Shankar, Uma |
| Description | Country affiliation: India Author Affiliation: Khan FA ( Animal Reproduction Division, Indian Veterinary Research Institute, Izatnagar, India. fakhan3@wisc.edu) |
| Abstract | Ovarian acyclicity is one of the most important causes of infertility in water buffalo. Recent studies have indicated alterations in the composition of follicular fluid during the condition. The aim of this study was to determine the changes in follicular fluid concentrations of estradiol, progesterone and insulin during ovarian acyclicity in water buffalo. Ovaries were collected from 50 acyclic and 95 cyclic (control) buffaloes and follicular fluid was aspirated from small (5.0-6.9 mm), medium (7.0-9.9 mm) and large (≥10.0 mm) sized follicles. Estradiol concentration was lower (P<0.0001) in acyclic (1.4 ± 0.09 ng/ml) than in cyclic (3.3 ± 0.18 ng/ml) buffaloes. Regardless of the ovarian cyclic status, there was an increase (P<0.01) in estradiol concentration with the increase in follicle size; the mean concentrations were 2.4 ± 0.16 ng/ml, 2.8 ± 0.29 ng/ml and 3.5 ± 0.41 ng/ml in small, medium and large follicles, respectively. A higher (P<0.001) progesterone concentration was recorded in acyclic (24.3 ± 2.61 ng/ml) compared to the cyclic (7.6 ± 0.79 ng/ml) group. Furthermore, acyclic buffaloes had a lower (P<0.05) concentration of insulin in the follicular fluid than that of cyclic buffaloes (15.2 ± 1.55 µIU/ml versus 25.9 ± 2.78 µIU/ml, respectively). In conclusion, acyclic buffaloes have lower concentrations of estradiol and insulin concurrent with higher concentrations of progesterone in the follicular fluid. These hormonal changes in the follicular microenvironment are possibly a manifestation of the disturbances in the normal follicular development leading to anovulation and anestrus in acyclic buffaloes. |
| File Format | HTM / HTML |
| ISSN | 03784320 |
| Issue Number | 1-2 |
| Volume Number | 130 |
| e-ISSN | 18732232 |
| Journal | Animal Reproduction Science |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2012-01-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Animal science Discipline Reproductive Medicine Discipline Veterinary Medicine Discipline Zoology Buffaloes Physiology Estradiol Metabolism Follicular Fluid Chemistry Insulin Ovary Progesterone Animals Estrous Cycle Female Ovulation Journal Article |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Animal Science and Zoology Endocrinology Food Animals |
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