Seasonal variation of the ovarian follicular dynamics and luteal functions of sheep in the subtropics

Theriogenology

Volumn 66, Issue 2, 2006, Pages 463-469

  Ali, A ^a   Derar, R ^a   Hussein, H ^a  

^a Assiut University   (Egypt)

Author keywords

Follicle dynamics; Luteal function; Sheep; Subtropics

Indexed keywords

PROGESTERONE;

ANIMAL; ARTICLE; BLOOD; CORPUS LUTEUM; ECHOGRAPHY; ESTRUS; FEMALE; LUTEAL PHASE; OVARY FOLLICLE; PHYSIOLOGY; SEASON; SHEEP; TIME; TROPIC CLIMATE;

ANIMALS; CORPUS LUTEUM; ESTRUS; FEMALE; LUTEAL PHASE; OVARIAN FOLLICLE; PROGESTERONE; SEASONS; SHEEP; TIME FACTORS; TROPICAL CLIMATE;

OVIS ARIES;

EID: 33745224146     PISSN: 0093691X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.theriogenology.2005.12.010     Document Type: Article

References (41)

1. Yeats N.T.M. The breeding season of the sheep with particular reference to its modification by artificial means using sun light. J Agric Sci, Camb 39 (1949) 1-43
2. Hafez E.S.E. Studies on the breeding season and reproduction of the ewe. J Agric Sci, Camb 42 (1952) 189-265
3. Chemineau P., Malpaux B., Delgadillo J.A., Guerin Y., Ravault J.P., and Thimonier J. Control of sheep and goat reproduction: use of light and melatonin. Anim Reprod Sci 30 (1992) 157-184
4. Noel B., Bister J.L., and Paquay R. Ovarian follicular dynamics in Sufflok ewes at different periods of the year. J Reprod Fertil 99 (1993) 695-700
5. Ravindra J.P., and Rawlings N.C. Ovarian follicular dynamics in ewes during the transition from anoestrus to the breeding season. J Reprod Fertil 110 (1997) 279-289
6. Bartlewski P.M., Beard A.P., Cook S.J., and Rawlings N.C. Ovarian follicular dynamics during anoestrus in ewes. J Reprod Fertil 113 (1998) 275-285
7. Hafez, ESE. Ovarian activity in Egyptian (fat-tailed) sheep. Res Bull 1953;43. Faculty of Agriculture, Cairo University.
8. Aboul-Naga A.M., Mansour H., Aboul-Ela M.B., Mousa M.T., Ferial H., and El-Hommosi F. Oestrous activity in three subtropical sheep breeds in Upper Egypt and response to long-day light treatment. J Agric Sci, Camb 116 (1991) 139-143
9. Mounib M.S., Ahmed I.A., and Hamad M.K.O. A study of the sexual behavior of the female Rahmani sheep. Alex J Agric Res 4 (1956) 85-107
10. Amir D., and Volcani R. The sexual season of the Awassi fat-tailed ewe. J Agric Sci, Camb 64 (1965) 83-85
11. Badawy A.A., El-Bashary A.S., and Mohasen M.K.M. A study of the sexual behaviour of the female Barki sheep. Alex J Agric Res 21 (1973) 1-9
12. El-Fouly M.A., Shafie M.M., Abdel-Aziz A.S., and Kandeal S.A. Seasonal variation in oestrous activity in Ossimi and Rahmani ewes. Egypt J Anim Prod 17 (1977) 75-85
13. Sefidbakht N., Mostafa M.S., and Farid A. Annual reproductive rhythm and ovulation rate in four fat-tailed sheep breeds. Anim Prod 26 (1978) 177-184
14. Aboul-Naga A.M. Oestrous activity of Egyptian fat-tailed Ossimi ewes raised at different locations. J Agric Sci, Camb 103 (1984) 481-486
15. Omaima M.K., Shalash M.R., Hemeida N.A., and Salama A.A. Oestrous cycle and factors affecting ovarian function in Barki ewes. Egypt J Vet Sci 30 (1993) 57-68
16. Fortune J.E., Rivera G.M., Evans A.C.O., and Turzillo A.M. Differentiation of dominant versus subordinate follicles in cattle. Biol Reprod 65 (2001) 648-654
17. Ali A., Lange A., Gilles M., and Glatzel P.S. Morphological and functional characteristics of the dominant follicle and corpus luteum in cattle and their influences on ovarian functions. Theriogenology 56 (2001) 569-576
18. Ginther O.J., Beg M.A., Bergfelt D.R., Dondeu F.X., and Kot K. Follicle selection in monovular species. Biol Reprod 65 (2001) 638-647
19. Bartlewski P.M., Beard A.P., Cook S.J., Chandolia R.K., Honaramooz A., and Rawlings N.C. Ovarian antral follicular dynamics and their relationships with endocrine variables throughout the oestrous cycle in breeds of sheep differing in prolificacy. J Reprod Fertil 115 (1999) 111-124
20. Evans A.C.O., Duffy P., Hynes N., and Boland M.P. Waves of follicle development during the estrous cycle in sheep. Theriogenology 53 (2000) 699-715
21. Evans A.C.O., Flynn J.D., Duffy P., Knight P.G., and Boland M.P. Effects of ovarian follicle ablation on FSH, oestradiol and inhibin A concentrations and growth of other follicles in sheep. Reproduction 123 (2002) 59-66
22. Ravindra J.P., Rawlings N.C., Evans A.C.O., and Adams G.P. Ultrasonographic study of ovarian follicular dynamics in ewes during the oestrous cycle. J Reprod Fertil 501 (1994) 509
23. Lopez-Sebastian A., Gonzalez de Bulnes A., Santiago J., Gomez-Brunet A., Townsend E.C., and Inskeep E.K. Pattern of follicular development during the estrous cycle in monoovular Merino del Paris ewes. Anim Reprod Sci 48 (1997) 279-291
24. Duggavathi R., Bartlewski P.M., Barrett D.M.W., and Rawlings N.C. Use of high-resolution transrectal ultrasonography to assess changes in numbers of small ovarian antral follicles and their relationships to the emergence of follicular waves in cyclic ewes. Theriogenology 60 (2003) 495-510
25. Hutchinson J.S., and Robertson H.A. The growth of the follicle and corpus luteum in the ovary of the sheep. Res Vet Sci 7 17 (1966) 24
26. Smeaton T.C., and Robertson H.A. Studies on the growth and atresia of graafian follicles in the ovary of the sheep. J Reprod Fertil 25 (1971) 243-252
27. Ginther O.J., Kot K., and Wiltbank M.C. Association between emergence of follicular waves and fluctuations in FSH concentration during the estrous cycle in ewes. Theriogenology 43 (1995) 689-703
28. Souza C.J.H., Campbell B.K., and Baird D.T. Follicular dynamics and ovarian steroid secretion in sheep during the follicular and early luteal phases of the estrous cycle. Biol Reprod 56 (1997) 483-488
29. Vinoles C., Forsberg G., Banchero G., and Rubianes E. Ovarian follicular dynamics and endocrine profiles in Polwarth ewe wit high and low body condition. Anim Sci 74 (2000) 539-545
30. Gibbons J.R., Kot K., Thomas D.L., Wiltbank M.C., and Ginther O.J. Follicular and FSH dynamics in ewes with a history of high and low ovulation rate. Theriogenology 52 (1999) 1005-1020
31. Turnbull K.E., Braden A.W.H., and Mattner P.E. The pattern of follicular growth and atresiain the ovine ovary. Aust J Biol Sci 30 (1977) 229-241
32. Lahlou-Kassi A., and Mariana J.C. Ovarian follicular growth during the oestrous cycle in two breeds of ewes of different ovulation rate, the D'Man and the Timahdite. J Reprod Fertil 72 (1984) 301-310
33. Schrick F.N., Surface R.A., Pritchard J.Y., Dailey R.A., Townsend E.C., and Inskeep E.K. Ovarian structures during the estrous cycle and early pregnancy in ewes. Biol Reprod 49 (1993) 1133-1140
34. ® for windows, version 10.0,1999.
35. Aboul-Naga, AM. Crossbreeding for fecundity in subtropical sheep. In: Land RB, Robinson DW, editors. Genetics of reproduction in sheep. London: Butterworth; 1985. p. 55-62.
36. Ravindra J.P., and Rawlings N.C. Ovarian follicular dynamics in ewes during the transition from anoestrus to the breeding season. J Reprod Fertil 110 (1997) 279-289
37. Kaulfuss K.H., Moritz S., and Giucci E. The influence of the ovulation rate on ultrasonically determined ovine corpus luteum morphometry and progesterone concentrations in cyclic and early pregnant sheep. Dtsch Tierarztl Wochenschr 110 (2003) 249-254
38. McKenzie F.F., and Terrill C.E. Estrous, ovulation, and related phenomena in the ewe. Res Bull (1937) 264 Columbia: University of Missouri
39. El-Wishy A.B., El-Sawaf S.A., and Fouad K. Some aspects of reproduction in fat-tails sheep in subtropics. II. Seasonal variation in ovarian activity. Zeitschrift fuer Tierzuchtung und Zuchtungsbiologie 93 (1976) 121-134
40. Ginther O.J., Kastelic J.P., and Knopf L. Intraovarian relationships among dominant and subordinate follicles and the corpus luteum in heifers. Theriogenology 32 (1989) 787-795
41. Dufour J., Ginther O.J., and Casida L.E. Intraovarian relationship between corpora lutea and ovarian follicles in ewes. Am J Vet Res 33 (1972) 1445-1446