Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-28T00:08:04.307Z Has data issue: false hasContentIssue false
  • English
  • Français

Follicular dynamics during the oestrous cycle in dairy goats

Published online by Cambridge University Press:  18 August 2016

A. Gonzalez de Bulnes ,
J. Santiago Moreno ,
A. Gomez-Brunet ,
E. K. Inskeep ,
E. C. Townsend  and
A. Lopez-Sebastian
A. Gonzalez de Bulnes
Affiliation:
Area de Reproducción Animal, INIA, Avda Puerta de Hierro Km 5.9, 28040 Madrid, Spain
J. Santiago Moreno
Affiliation:
Area de Reproducción Animal, INIA, Avda Puerta de Hierro Km 5.9, 28040 Madrid, Spain
A. Gomez-Brunet
Affiliation:
Area de Reproducción Animal, INIA, Avda Puerta de Hierro Km 5.9, 28040 Madrid, Spain
E. K. Inskeep
Affiliation:
Division of Animal and Veterinary ScienceWest Virginia University, Morgantown WV26506-6108, USA
E. C. Townsend
Affiliation:
Department of Statistics, West Virginia University, Morgantown WV26506-6108, USA
A. Lopez-Sebastian
Affiliation:
Area de Reproducción Animal, INIA, Avda Puerta de Hierro Km 5.9, 28040 Madrid, Spain
Get access

Abstract

Development of all follicles with antral diameter ≥2 mm during the oestrous cycle was characterized in goats of the Murciana-Granadina dairy breed by daily transrectal ultrasonography. Of nine does initially synchronized in oestrus, six returned to oestrus and three did not. In the first six does, mean cycle length was 21·2 (s.e. 2-3) days. There were mean total numbers of 6·2 (s.e. 0·6) small (2 to 3 mm), 1·9 (s.e. 0·3) medium (4 to 5 mm), and 1·0 (s.e. 0·2) large follicles (≥6 mm) each day but only numbers of large follicles differed with day of cycle (P < 0·01). The diameters of the largest follicle (LF1), the second largest (LF2) and the remaining follicles (RF) varied with day of cycle (P < 0·01). The LF1 and LF2 varied with day in similar patterns but the difference in diameter between them (P < 0·05) was greatest on days 7 and 9 (2·3 mm) and days 19 to 23 (2·2 to 3·8 mm), and least on days 2, 15, 16 and 18 (0·5 to 0·8 mm). The relationship between the LF1 and LF2 to the RF differed only early or late in the cycle when concentrations of progesterone were low (P < 0.05). There was some evidence to support follicular growth in waves. Although the number of apparently new follicles detected (4·8 (s.e. 0·4) per day) did not vary with day of cycle, follicles emerging at 3 mm over a 48-h period that grew to a diameter of ≥6 mm were distributed non-randomly in three of six cyclic does. The three cystic does that did not return to oestrus by day 25 had large follicles (16 to 28 mm), fewer new follicles (3·3 (s.e. 1-1) per day; P < 0·01) than cyclic does (4·8 (s.e. 0·4) per day) and fewer follicles that became largest (4·0 v. 8·8 in cyclic does; P < 0·01).

Keywords

folliclesgoatsoestrous cycleovariesultrasonography
Type
Research Article
Information
Animal Science , Volume 68 , Issue 3 , April 1999 , pp. 547 - 554
Copyright
Copyright © British Society of Animal Science 1999

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Akusu, M.O., Osaugwuh, A. L.A., Akpokodje, J. U. and Egbunike, G. N. 1986. Ovarian activities of the West African dwarf goat (Capra hircus) during oestrus. Journal of Reproduction and Fertility 78: 459–462.Google Scholar
Bartelewski, P. M., Beard, A. P., Cook, S. J., Chandolia, R. K., Honoramooz, A. and Rawlings, N. C. 1999. Ovarian follicular dynamics and their associations with endocrine parameters throughout the oestrous cycle in breeds of sheep differing in prolificacy. Journal of Reproduction and Fertility In press.Google Scholar
Bor, A., Braw-tal, R. and Gootwine, E. 1992. Monitoring ovarian response of Booroola × Assaf ewe lambs to PMSG, using ultrasonography and serum oestradiol. Theriogenology 38: 645–652.Google Scholar
Camp, J.C, Wildt, D. E., Howard, P. K., Stuart, L. D. and Chakraborty, P. K. 1983. Ovarian activity during normal and abnormal length estrous cycles in the goat. Biology of Reproduction 28: 673–681.Google Scholar
Carriere, P. D., Amaya, D. and Lee, B. 1995. Ultrasonography and endocrinology of ovarian dysfunction induced in heifers with estradiol valerate. Theriogenology 43: 1061–1076.CrossRefGoogle ScholarPubMed
Castro, T. de, Rubianes, E., Menchaca, A. and Rivero, A. 1998. Ultrasonic study of follicular dynamics during the estrous cycle in goats. Theriogenology 49: 399 (abstr.).Google Scholar
Falagan, A., Urrutia, B., Carrizosa, J. A. and Lafuente, A. 1993. [Preliminary note about off-season reproduction of Murciana-Granadina goat in Murcia.] Información Tecnica Economica Agraria 12: 451–453.Google Scholar
Ginther, O. J., Knopf, L. and Kastelic, J. P. 1989. Temporal associations among ovarian events in cattle during oestrous cycles with two and three follicular waves. Journal of Reproduction and Fertility 87: 223–230.Google Scholar
Ginther, O. J. and Kot, K., 1994. Follicular dynamics during the ovulatory season in goats. Theriogenology 42: 987–1001.Google Scholar
Ginther, O. J., Kot, K. and Wiltbank, M. C. 1995. Associations between emergence of follicular waves and fluctuations in FSH concentrations during the estrous cycle in ewes. Theriogenology 43: 689–703.Google Scholar
Gonzalez de Bulnes, A., Santiago-Moreno, J., Garcia-Lopez, M., Gomez-Brunet, A. and Lopez-Sebastian, A. 1994. [Observation of ewe ovaries and efficacy to detect follicles and corpora lutea by transrectal ultrasonography.] Investigación Agraria 9: 319–329.Google Scholar
Goodman, A. C. and Hodgen, G. D. 1983. The ovarian control of the primate menstrual cycle. Recent Progress in Hormone Research 39: 1–73.Google Scholar
Johnson, S.K., Dailey, R. A., Lewis, P. E. and Inskeep, E. K. 1996. Effect of peripheral concentrations of progesterone on follicular growth and fertility in ewes. Domestic Animal Endocrinology 13: 69–79.Google Scholar
Llewelyn, C. A., Ogaa, J. S. and Obwolo, M. J. 1993. Plasma progesterone profiles and variation in cyclic ovarian activity throughout the year in indigenous goats in Zimbabwe. Animal Reproduction Science 30: 301–311.Google Scholar
Lopez-Diaz, M. C. and Bosu, T.K. 1992. A review and update of cystic ovarian degeneration in ruminants. Theriogenology 37: 1163–1183.Google Scholar
Lopez-Sebastian, A., Gomez-Brunet, A. and Inskeep, E. K. 1984. Effects of a single injection of LHRH on the response of anestrous ewes to the introduction of rams. Journal of Animal Science 59: 277–283.Google Scholar
Lopez-Sebastian, A., Gonzalez de Bulnes, A., Santiago-Moreno, J., Gomez-Brunet, A., Townsend, E.C. and Inskeep, E. K. 1997. Patterns of follicular development during the oestrous cycle in monovular Merino del Pais ewes. Animal Reproduction Science 48: 279–291.Google Scholar
Peluso, J. J. and England-Charlesworth, C. 1981. Formation of ovarian cysts in aged irregularly cycling rats. Biology of Reproduction 24: 1183–1190.Google Scholar
Pierson, R. A. and Ginther, O. J. 1984. Ultrasonography of the bovine ovary. Theriogenology 21: 495–504.Google Scholar
Prasad, S. P., Das, S. C. and Bhattacharyya, N. K. 1980. A study on the characteristics of Graafian follicles and ovulation sequence in nullipara Barbari nannies. Indian Journal of Animal Science 50: 53–57.Google Scholar
Ramachandran, K., Neelakauta-Iyer, C. P. and Prabhakaran-Nair, K. 1984. Pathological conditions in the ovaries of does (goat). Kerala Journal of Veterinary Science 15: 103–111.Google Scholar
Ravindra, J. P., Rawlings, N.C, Evans, A.O. and Adams, G. P. 1994. Ultrasonographic study of ovarian follicular dynamics in ewes during the oestrous cycle. Journal of Reproduction and Fertility 101: 501–509.Google Scholar
Roca, J., Carrizosa, J. A., Campos, Y., Lafuente, A., Vazquez, J. M. and Martinez, E. 1997. Viability and fertility of unwashed Murciano-Granadina goat spermatozoa diluted in Tris-egg yolk extender and stored at 5°C. Small Ruminant Research 25: 147–153.Google Scholar
Savio, J. D., Keenan, L., Boland, M. P. and Roche, J. F. 1988. Pattern of growth of dominant follicles during the oestrous cycle of heifers. Journal of Reproduction and Fertility 83: 663–671.Google Scholar
Scaramuzzi, R.J., Adams, N. R., Baird, D. T., Campbell, B.K., Downing, J. A., Findlay, J. K., Henderson, K. M., Martin, G.B., McNatty, K.P., McNeilly, A. S. and Tsonis, C.G. 1993. A model for follicle selection and the determination of ovulation rate in the ewe. Reproduction, Fertility and Development 5: 459–478.Google Scholar
Schrick, F.N., Surface, R. A., Pritchard, J. Y., Dailey, R. A., Townsend, E. C. and Inskeep, E. K. 1993. Ovarian structures during the estrous cycle and early pregnancy in ewes. Biology of Reproduction 49: 1133–1140.Google Scholar
Sirois, J. and Fortune, J. E. 1988. Ovarian follicular dynamics during the estrous cycle in heifers monitored by real-time ultrasonography. Biology of Reproduction 39: 308–317.Google Scholar
Statistical Analysis Systems Institute. 1992. SAS user’s guide: statistics (version 6.08). SAS Institute Inc., Cary, NC.Google Scholar
Steel, R. G. D. and Torrie, J. H. 1980. Principles and procedures of statistics, second edition. McGraw-Hill Inc., New York.Google Scholar
Sureshkumar, P. K. and Janakiraman, K. 1993. Histomorphological changes of the caprine ovary relative to the stages of the estrous cycle. Small Ruminant Research 12: 287–300.Google Scholar