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Time of ovulation in nulliparous and multiparous goats

Published online by Cambridge University Press:  15 April 2008

J. Simões ,
G. Baril ,
J. C. Almeida ,
J. Azevedo ,
P. Fontes  and
R. Mascarenhas
J. Simões*
Affiliation:
CECAV, University of Trás-os-Montes e Alto Douro, Apartado 1013, 5001-801 Vila Real, Portugal
G. Baril
Affiliation:
INRA-PRC, Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France
J. C. Almeida
Affiliation:
CECAV, University of Trás-os-Montes e Alto Douro, Apartado 1013, 5001-801 Vila Real, Portugal
J. Azevedo
Affiliation:
CECAV, University of Trás-os-Montes e Alto Douro, Apartado 1013, 5001-801 Vila Real, Portugal
P. Fontes
Affiliation:
CECAV, University of Trás-os-Montes e Alto Douro, Apartado 1013, 5001-801 Vila Real, Portugal
R. Mascarenhas
Affiliation:
INRB, Estação Zootécnica Nacional, 2005-048 Vale de Santarém, Portugal
*
E-mail: [email protected]
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Abstract

Fifteen nulliparous and nine multiparous Serrana goats were used, through two successive oestrous cycles, in order to characterize their ovulation time with regard to the number of ovulations after induced and natural oestrus during the breeding season. The onset of oestrus was detected by the amount of vasectomized bucks after oestrus synchronization with prostaglandin, given 10 days apart, and in the following two expected natural oestrus. The preovulatory LH peak was determined from blood samples collected 0, 4, 8, 12, 16, 20 and 24 h after onset of oestrus. A transrectal ovarian ultrasound scanning was performed 20, 24, 28, 32, 36, 40, 44 and 60 h after onset of oestrus, for the detection of ovulations by means of the disappearance of large follicles (>4 to 5 mm). Single ovulations were observed in 76% of oestrous periods in nulliparous goats and in 18% of nulliparous goats. The onset of oestrus to LH peak interval was lower in nulliparous (12.1 ± 0.9 h, n = 38) than in multiparous (15.6 ± 1.0 h, n = 22, P < 0.05) goats with no oestrus interaction effects (P > 0.05). The LH peak to first ovulation interval was higher after natural (18.9 ± 0.7 h, n = 36) than after induced (15.8 ± 1.2 h, n = 24, P < 0.05) oestrus. The onset of oestrus to total ovulation interval was influenced by parity (P < 0.01) and oestrus type (P < 0.05) with a length of 30.1 ± 1.1 h (n = 15) and 33.4 ± 1.5 h (n = 9) for induced oestrus of nulliparous and multiparous goats, respectively, and 32.5 ± 1.0 h (n = 23) and 36.5 ± 1.1 h (n = 13) for natural oestrus of nulliparous and multiparous goats, respectively. The onset of oestrus to first ovulation interval was not influenced by parity, but an interval of 8.0 ± 1.6 h was observed between the first and second ovulations in polyovulatory oestrus. Consequently, nulliparous goats that are predominantly monovular ovulate earlier than multiparous goats that are predominantly polyovulatory. In conclusion, significant differences occurred in the number and time of ovulations between nulliparous and multiparous goats. More research is necessary for a deeper understanding of the mechanisms regulating monovularory and polyovulatory oestrous cycles regarding the parity of goats.

Keywords

ovulationluteinizing hormoneoestrusultrasonographygoats
Type
Full Paper
Information
animal , Volume 2 , Issue 5 , May 2008 , pp. 761 - 768
Copyright
Copyright © The Animal Consortium 2008

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References

Baril, G, Vallet, JC 1990. Time of ovulations in dairy goats induced to superovulate with porcine follicle stimulating hormone during and out of the breeding season. Theriogenology 34, 303–311.Google Scholar
Baril, G, Leboeuf, B, Saumande, J 1993. Synchronization of estrus in goats: the relationship between time of occurrence of estrus and fertility following artificial insemination. Theriogenology 40, 621–628.Google Scholar
Baril, G, Touzé, JL, Pignon, R, Saumande, J 2000. Evaluation of the efficiency of transrectal ultrasound to study ovarian function in goats. Theriogenology 53, 370.Google Scholar
Chemineau, P, Gauthier, D, Poirier, JC, Saumande, J 1982. Plasma levels of LH, FSH, prolactin, oestradiol-17 beta and progesterone during natural and induced oestrus in the dairy goat. Theriogenology 17, 313–323.CrossRefGoogle Scholar
Christman, SA, Bailey, MT, Head, WA, Wheaton, JE 2000. Induction of ovarian cystic follicles in sheep. Domestic Animal Endocrinology 19, 133–146.CrossRefGoogle ScholarPubMed
Dobson H, Guy C, Denham E, Singh I and Smith RF 2000. Stress and reproduction in small ruminants. Proceedings of the Reproduction in Small Ruminants, Sandnes, Norway, pp. 39–43.Google Scholar
Freitas, VJ, Baril, G, Martin, GB, Saumande, J 1997a. Physiological limits to further improvement in the efficiency of estrus synchronization in goats. Reproduction Fertility and Development 9, 551–556.Google Scholar
Freitas, VJ, Baril, G, Saumande, J 1997b. Estrus synchronization in dairy goats: use of fluorogestone acetate vaginal sponges or norgestomet ear implants. Animal Reproduction Science 46, 237–244.CrossRefGoogle ScholarPubMed
Gonzalez-Bulnes, A, Díaz-Delfa, C, Urrutia, B, Carrizosa, JA, Lopez-Sebastian, A 2004. Ultrasonographic screening of the ovulatory process in goats. Small Ruminant Research 52, 165–168.Google Scholar
Gonzalez-Stagnaro C, Pelletier J, Cognie Y, Locatelli A, Baril G and Corteel JM 1984. Descarga preovulatoria de LH y momento de ovulacion en cabras lecheras durante el celo natural o inducido por via hormonal. Xth International Congress of Animal Reproduction and Artificial Insemination 2, 10–12 Urbana-Champaign, USA.Google Scholar
Greyling, JPC, Van Niekerk, CH 1990. Effect of pregnant mare serum gonadotrophin (PMSG) and route of administration after progestagen treatment on oestrus and LH secretion in the Boer goat. Small Ruminant Research 3, 511–516.Google Scholar
Leboeuf B, Bernelas D, Pougnard JL, Baril G, Maurel MC, Boué P and Terqui M 1996. Ovulation time after progestagen/PMSG treatment in Alpine and Saanen goats. 6th International Conference on Goats, Beijing, China, vol. 2, pp. 828–829.Google Scholar
Leboeuf, B, Manfredi, E, Boue, P, Piacère, A, Brice, G, Baril, G, Broqua, C, Humblot, P, Terqui, M 1998. Artificial insemination of dairy goats in France. Livestock Production Science 55, 193–203.Google Scholar
Leboeuf, B, Forgerit, Y, Bernelas, D, Pougnard, JL, Senty, E, Driancourt, MA 2003. Efficacy of two types of vaginal sponges to control onset of oestrus, time of preovulatory LH peak and kidding rate in goats inseminated with variable numbers of spermatozoa. Theriogenology 60, 1371–1378.Google Scholar
Martin, GB, Milton, JT, Davidson, RH, Banchero Hunzicker, GE, Lindsay, DR, Blache, D 2004. Natural methods for increasing reproductive efficiency in small ruminants. Animal Reproduction Science 82–83, 231–245.Google Scholar
Martínez-Álvarez, LE, Hernández-Cerón, J, González-Padilla, E, Perera-Marín, G, Valencia, J 2007. Serum LH peak and ovulation following synchronized estrus in goats. Small Ruminant Research 69, 124–128.Google Scholar
Menchaca, A, Pinczak, A, Rubianes, E 2001. Ultrasonographic estimation of the ovulation rate and the length of the ovulation period in superovulated goats. Theriogenology 55, 531.Google Scholar
Menchaca, A, Miller, V, Gil, J, Pinczak, A, Laca, M, Rubianes, E 2004. Prostaglandin F2α treatment associated with timed artificial insemination in ewes. Reproduction in Domestic Animals 39, 352–355.Google Scholar
Mori, Y, Kano, Y 1984. Changes in plasma concentrations of LH, progesterone and oestradiol in relation to the occurrence of luteolysis, oestrus and time of ovulation in the Shiba goat (Capra hircus). Journal of Reproduction and Fertility 72, 223–230.Google Scholar
Pelletier, J, Kann, G, Dolais, J, Rosselin, G 1968. Dosage radio-immunologique de l’hormone luteinizante plasmatique chez le mouton. Mise au point de la technique de dosage. Les Comptes rendus de l’Académie des sciences 266 (serie D), 2291–2294.Google Scholar
Pierson, JT, baldassarre, H, Keefer, CL, Downey, BR 2001. Seasonal variation in preovulatory events associated with synchronization of estrus in Dwarf goats. Theriogenology 56, 759–769.Google Scholar
Roelofs, JB, Bouwman, EG, Dieleman, SJ, Van Eerdenburg, FJCM, Kaal-Lansbergen, LMTE, Soede, NM, Kemp, B 2004. Influence of repeated rectal ultrasound examinations on hormone profiles and behaviour around oestrus and ovulation in dairy cattle. Theriogenology 62, 1337–1352.Google Scholar
Roelofs, JB, Van Eerdenburg, FJ, Hazeleger, W, Soede, NM, Kemp, B 2006. Relationship between progesterone concentrations in milk and blood and time of ovulation in dairy cattle. Animal Reproduction Science 91, 337–343.Google Scholar
Santucci, PM, Branca, A, Napoleone, M, Bouche, R, Aumont, G, Poisot, F, Alexandre, G 1991. Body condition scoring of goats in extensive conditions (ed. P Morand-Fehr), pp. 240–255. Pudoc Publisher, The Netherlands.Google Scholar
Simões, J, Almeida, JC, Mascarenhas, R 2005a. Oestrus and ovarian activity in Serrana goats and their response to cloprostenol during the breeding season. Reproduction in Domestic Animals 40, 348.Google Scholar
Simões, J, Potes, J, Azevedo, J, Almeida, JC, Fontes, P, Baril, G, Mascarenhas, R 2005b. Morphometry of ovarian structures by transrectal ultrasonography in Serrana Goats. Animal Reproduction Science 85, 263–273.Google Scholar
Simões, J, Almeida, JC, Valentim, R, Baril, G, Azevedo, J, Fontes, P, Mascarenhas, R 2006. Follicular dynamics in Serrana goats. Animal Reproduction Science 95, 16–26.Google Scholar
Simões, J, Almeida, JC, Baril, G, Azevedo, J, Fontes, P, Mascarenhas, R 2007. Assessment of luteal function by ultrasonographic appearance and measurement of corpora lutea in goats. Animal Reproduction Science 97, 36–46.Google Scholar
Sirois, J, Fortune, JE 1988. Ovarian follicular dynamics during the estrous cycle monitored by real-time ultrasonography. Biology of Reproduction 39, 308–317.Google Scholar
Statistical Analysis Systems (SAS) 1999. StatView Reference 1999. SAS Institute, Cary, NC.Google Scholar
Valentim, R, Azevedo, J, Almeida, JC, Correia, T, Mascarenhas, R, Fontes, P, Simões, J 2006. Ovulation and oestrus synchronization using fluorogestone acetate vaginal sponges in nulliparous Serrana goats. Reproduction in Domestic Animals 41, 375.Google Scholar
Valenzuela-Jiménez, N, Hernández-Cerón, J, Murcia-Mejía, C, Rodríguez-Maltos, R, Gutiérrez, CG 2004. The effect of estradiol benzoate on the time to the LH peak, ovulation time and fertility in melengestrol acetate synchronized goats. Agrociencia 38, 603–611.Google Scholar