Abstract
The effect of intravaginal fluorogestone acetate (FGA) sponges on prolactin levels (PRL) and correlations between PRL and milk somatic cell count (SCC) and steroid hormones levels of Damascus-local cross goats during transitional period to anestrous were investigated in this study. Fifty-six goats were assigned to three groups. Group 1 (FGA, n = 19) was treated with 40 mg FGA and equine chorionic gonadotropin (600 IU, i.m.) at time of sponge withdrawal (day 0). Group 2 (FGA-PGF; n = 19) was treated similar to group 1 but was also injected with dinoprost tromethamine (naturally occurring PGF2α) (10 mg, i.m.) on day 0. Control goats (n = 18) were left untreated. On day 0, five fertile bucks were turned in with all goats. Milk and blood samples were collected on days −13 (day of sponge insertion), −6, 0, 1, 2, 7, 13, and 20. Prolactin levels were at lowest values on day −13 of the study and increased (p < 0.05) from day −6 to day 20 in all groups. A significant positive correlation (p < 0.05) between PRL and progesterone and between PRL and estradiol levels was found in this study. No significant correlation was found between PRL and SCC of all groups during the study except on days 2 and 20 where PRL levels were correlated (p < 0.05) with SCC of left udder halves of FGA group. In conclusion, estrus induction with FGA resulted in significant increase in PRL. A positive correlation was found between PRL and steroid hormones, but there was no correlation between PRL and goat milk SCC.
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Aleandri, M., Fagiolo, A., Calderini, P., Colafrancesco, G., Giangolini, G., Rosati, R., De Michelis, F., 1994. Studies conducted on somatic cells count of goat milk. International symposium on somatic cells and milk of small ruminants, Bella, Italy, pp. 55–58.
Bachelot, A., Carre, N., Mialon, O., Matelot, M., Servel, N., Monget, P., Ahtiainen, P., Huhtaniemi, I., Binart, N., 2013. The permissive role of prolactin as a regulator of luteinizing hormone action in the female mouse ovary and extragonadal tumorigenesis. American journal of physiology, endocrinology and metabolism, 305, E845-852.
Ben-Jonathan, N., Hnasko, R., 2001. Dopamine as a prolactin (PRL) inhibitor. Endocrinology Reviews, 22, 724–763.
Błaszczyk, B., Udała, J., Aczarzewicz, D.G., 2004. Changes in estradiol, progesterone, melatonin, prolactin and thyroxine concentrations in blood plasma of goats following induced estrus in and outside the natural breeding season. Small Ruminant Research, 51, 209–219.
Brownell, J., 1996. Quinagolide (Norprolac): a novel non-ergot prolactin inhibitor. Drugs Today (Barc) 32 (suppl B), 1–31.
Buttle, H. L., 1974. Seasonal variation of prolactin in plasma of male goats. Journal of Reproduction and Fertility, 37, 95–99.
Currie, W., Gorewit, R., Michel, F., 1988. Endocrine changes, with special emphasis on oestradiol-17, prolactin and oxytocin, before and during labour and delivery in goats. Journal of Reproduction and Fertility, 82, 299–308.
Embert, H.C., 1986. Veterinary Clinical Pathology. 4th ed. Saunders, Philadelphia.
Flint, D., Gardner, M., 1994. Evidence that growth hormone stimulates milk synthesis by direct action on the mammary gland and that prolactin exerts effects on milk secretion by maintenance of mammary deoxyribonucleic acid content and tight junction status. Endocrinology, 135, 1119–1124.
Fragkou, I. A., Boscos, C. M., Fthenakis, G. C., 2014. Diagnosis of clinical or subclinical mastitis in ewes. Small Ruminant Research, 118:86–92.
Gaafar, K. M., Gabr, M. K., Teleb, D. F., 2005. The hormonal profile during the estrous cycle and gestation in Damascus goats. Small Ruminant Research, 57, 85–93.
Gomez-Brunet, A., Santiago-Moreno, J., del Campo, A., Malpaux, B., Chemineau, P., Tortonese, D. J., Gonzalez-Bulnes, A., Lopez-Sebastian, A., 2008. Endogenous circannual cycles of ovarian activity and changes in prolactin and melatonin secretion in wild and domestic female sheep maintained under a long-day photoperiod. Biology of Reproduction, 78, 552–562.
Gregerson, K. A., 2006. Prolactin: structure, function, and regulation of secretion, In: Neill, JD (Ed.) Knobil and Neill’s Physiology of Reproduction. Elsevier Inc,, Amsterdam, pp. 1703–1726.
Hesselink, J. W., Taverne, M. A. M., Van Oord, H. A., 1995. Serum prolactin concentration in pseudopregnant and normally reproducing goats. The Veterinary record, August 12, 166–168
Kandiel, M. M. M., Watanabe, G., Sosa, G. A., Abou El-Roos, M. E. A., Abdel-Ghaffar, A. E., Li, J. Y., Manabe, N., El Azab, A. E. S. I., Taya, K., 2010. Profiles of Circulating Steroid Hormones, Gonadotropins, Immunoreactive Inhibin and Prolactin During Pregnancy in Goats and Immunolocalization of Inhibin Subunits, Steroidogenic Enzymes and Prolactin in the Corpus Luteum and Placenta. Journal of Reproduction and Development, 56, 243–250.
Kowalewski, M. P., 2014. Luteal regression vs. prepartum luteolysis: Regulatory mechanisms governing canine corpus luteum function. Reproductive Biology, 14, 89–102
Lacasse, P., Lollivier, V., Dessauge, F., Bruckmaier, R. M., Ollier, S., Boutinaud, M., 2012. New developments on the galactopoietic role of prolactin in dairy ruminants. Domestic Animal Endocrinology, 43, 154–160.
Lamming, G. E., Moseley, S. R., McNeilly, J. R., 1974. Prolactin release in the sheep. Journal of Reproduction and Fertility, 40, 151–168.
Lerondelle, C., Richard, Y., Issartial, J., 1992. Factors affecting somatic cell counts in goat milk. Small Ruminant Research, 8, 129–139.
McMahon, G., Shearman, R., Shutt, D. D., Smith, I., 1979. Prostaglandin F2a-Induced Prolactin Release and Luteolysis in the Goat. Australian Journal of Biological Sciences, 32, 109–114.
Mori, Y., Maeda, K., Sawasaki, T., Kano, Y., 1985. Photoperiodic control of prolactin secretion in the goats. Japanese Journal of Animal Reproduction, 31, 9–15.
Moro-Mendez, J., Hayes, J. F., 2005. Detection of QTL affecting mastitis resistance traits and SCS in Canadian holsteins. Journal of Dairy Science, 88, 201–201.
Niswender, G. D., Juengel, J. L., Silva, P. J., Rollyson, M. K., McIntush, E. W., 2000. Mechanisms controlling the function and life span of the corpus luteum. Physiological reviews, 80, 1–29.
Paape, M. J., Wiggans, G. R., Bannerman, D. D., Thomas, D. L., Sanders, A. H., Contreras, A., Moroni, P., Miller, R. H., 2007. Monitoring goat and sheep milk somatic cell counts. Small Ruminant Research, 68, 114–125
Prandi, A., Romagnoli, G., Chiesa, F., Tamanini, C., 1987. Plasma prolactin variations and onset of ovarian activity in lactating anestrous goats given melatonin. Animal Reproduction Science, 13, 291–297.
Reeves, J. J., Arimura, A., Schally, A. V., 1970. Serum Levels of Prolactin and Luteinizing Hormone (LH) in the Ewe at Various Stages of the Estrous Cycle. Experimental Biology and Medicine, 134, 938–942.
Rhind, S. M., Chesworth, J. M., Robinson, J. J., 1978. A seasonal difference in ovine peripheral plasma prolactin and progesterone concentrations in early pregnancy and in the relationship between the two hormones. Journal of Reproduction and Fertility, 52, 79–81.
Schams, D., Berisha, B., 2004. Regulation of Corpus Luteum Function in Cattle – an Overview. Reproduction in Domestic Animals, 39, 241–251
SPSS17.0, 2008. SPSS software (Version17.0), SPSS Inc., Chicago, IL, USA
Talafha, A. Q., Lafi, S. Q., Ababneh, M. M., 2008. The effect of estrus synchronization treatment on somatic cell count of transitional-anestrus local-Damascus cross breed goats’ milk. Tropical Animal Health and Production, 40, 185–192.
Teleb, D. F., Gabr, M. K., Gaafar, K. M., 2003. Manipulation of lactation and suckling on the resumption of postpartum reproductive activity in Damascus goats. Small Ruminant Research, 49, 183–192.
Villaquiran, M., Gipson, T., Merkel, R., Goetsch, A., Sahlu, T., 2004. Body Condition Scores in Goats. American Institute for Goat Research, Langston University.
Wojdak-Maksymiec, K., Kemic, M., Strzalaka, J., 2008. Prolactin gene polymorphism and somatic cell count in dairy cattle. Journal of Animal and Veterinary Advances, 7, 35–40.
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The study reported herein received funding from the Deanship of Research, Jordan University of Science and Technology, Irbid, Jordan.
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Talafha, A.Q., Ababneh, M.M., Khalifeh, M.S. et al. Effect of intravaginal fluorogestone acetate sponges on prolactin levels of Damascus-local cross breed goats. Trop Anim Health Prod 47, 277–283 (2015). https://doi.org/10.1007/s11250-014-0716-0
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DOI: https://doi.org/10.1007/s11250-014-0716-0