| More

Effect of Buserelin on corpus luteum activity and the fertility of dairy cows

Views: 281 Downloads: 270


112 selected Friesian dairy cows that had calved at least once, were used. The animals were divided into two groups, A (n = 55) and Β (n=57). On the 12th day post insemination (p.i.) 12 μg buserelin (3ml Receptal - Hoechst) and 3 ml normal saline (placebo) were injected intramuscularly to the animals of groups A and Β (controls), respectively. Milk progesterone concentration was measured in even animal from the day of insemination until the 24th day p.i.. A significant increase (P<0.05) in pregnancy rate (19.7%) was observed in the animals of group A. Also, the concentration of progesterone in the pregnant animals (14th - 24th day p.i.) as well as in the non pregnant (14th - 16th day p.i.) ones in group A was significantly increased (P<0.05) compared to that of the controls'. The duration of the estrous cycle of the non pregnant animals did not differ significantly (P>0.05) between the two groups. It is concluded that buserelin administration on the 12th day p.i. improved the fertility of dairy cows significantly by means of an antiluteolytic effect, through an increase in progesterone concentration, during the crucial period of maternal recognition of pregnancy.


Αγελάδες; προγεστερόνη; Buserelin; κυοφορία

Full Text:



Drew SB, Peters AR. Effect of buserelin on pregnancy rates in dairy cows. Vet Ree 1994,12: 267-269

Grunert E, Berchtold M. Fertilititätstörungen beim weiblichen Rind. Verlag Paul Parey, Berlin und Hamburg, 1995

Mann GE, Lamming GE, Fray MD. Plasma oestradiol and progesterone during early pregnancy in the cow and the effects of treatment with buserelin. Anim Reprod Sci


Diskin MG and Sreeman JM. Embryonic mortality in farm animals, The Hague, Martinus Nijhoff 1986

Lamming GE, Darwash AO, Back HL. Corpus luteum function in dairy cows and embryo mortality. J Reprod Fertil Suppl 1989, 37: 245-252

Lukaszewska J, Hansel W. Corpus luteum maintenance dunng early pregnancy in the cow. J Reprod Fertil 1980, 59: 485-493

Lewis GS. Caldwell DW, Rexroad CE, Dowlen HH, Owen JR. Effects of gonadotropin-releasing hormone and human chorionic gonadotropin on pregnancy rate in dairy cattle. J Dain Sci 1990, 73: 66-76

Σαράτσης Φ, Schmidt-Αδαμοπούλου Β, Kohler-Σαμουηλίδου G. Σχέσεις ωοθηκικής δραστηριότητας και εμφάνισης ενδομητρίτιδας σε αγελάδες γαλακτοπαραγωγής κατά την post partum περίοδο και επίδραση της έγχυσης GnRH. Δελτίο Φυσιοπαθ Αναπαρ και Τεχν Σπερμ 1991, Χ(2):81-90

Σαράτσης Φ, Schmidt-Αδαμόπουλου Β. Γονιμότητα αγελάδων γαλακτοπαραγωγής μετά απο έγχυση GnRH. Δελτίο Φυσιοπαθ Αναπαρ και Τεχν Σπερμ 1992, XI (1- 2): 31-42

Macmillan KL, Taufa VK, Day AM.. Effects of an agonist of gonadotrophin releasing hormone (buserelin) in cattle.111. Pregnancy rates after a post-insemination injection during metoestrus or dioestrus. Anim Reprod Sci 1986,11:1-10

Bentele W, Humke K. über die Anwendung von Buserelin in der Lutealphase bei Kühen nach Zweit-oder Drittbesamung. Tierarzt Umsch 1987, 42: 388-394

Mann GE, Lamming GE. The effects of treatment with Receptal on plasma concentrations of oestradiol and progesterone and cycle length in the cow. Br Vet J 1995,151: 427-432

Stevenson JS, Phatak AP, Rettmer I, Stewart RE. Postinsemination administration of Receptal: folliculardynamics, duration of cycle, hormonal responses and pregnancy rates. J Dairy Sci 1993, 76: 2536-2547

Macmillan KL, Thacher WW. Effect of GnRH analogue on ovarian follicular dynamics and corpus luteum lifespan in cattle. J Anim Sci 1988, 66 (Suppl 1): 432-439

Pope GS, Majzlik I, Ball JH, Leaver JD. Use of progesterone concentrations in plasma and milk in the diagnosis of pregnancy in domestic cattle. Br Vet J 1976,132: 497-503

Arnstadt KI, Fischer-Amstadt AR. Progesteronbestimmungen als Hilfsmittel der Brunstkontrolle. Tierarztl Umschau 1985, 5: 391-400

Drew SB, Peters AR. The effects of treatment with a gonadotrophin releasing hormone analogue on the fertility of dairy cows. Anim Prod 1991, 52: 612-622

Lofthammer KH, Wittkowski G. Fruchtbarkeit und Gesundheit der Rinder. Ulmer, Stuttgart, 1994, p.36.

Roberts RM, Sancai X, Nagappan M. Maternal recognition of pregnancy. Biol Reprod 1996, 54: 294-302

Lamming GE, Mann GE. Progesterone concentration affects the development of the luteolytic mechanism in the cow. J Reprod Fertil Abstr 1993,11: 8-11

Vallet JL, Lamming GE. Ovine conceptus secretory proteins and bovine recombinant interferon la decrease endometnal oxytocin receptor concentrations in cyclic and progesterone treated ovariectiomized ewes. J Endocrinol 1991, 31: 475-482

Lau TM, Gow GB, Fairclough RJ. Differential effects of progesterone treatment on the oxytocin-induced prostaglandin F2a response and the levels of endometrial oxytocin receptors in ovariectiomized ewes. Biol Reprod 1992,46:17-22

Beard AP, Lamming GE. Oestradiol concentration and the development of the oxytocin receptor and oxytocin induced prostaglandin F2a release in ewes. J Reprod

Fertil 1994,100: 469-475.

Kooligan KB, Stormshak F. Progesterone inhibition of estrogen replenishment in ovine endometnum. Biol Reprod 1977,17: 412-416

Geisert RD, Morgan GL, Short EC, Zavy MT. Endocrine events associated with endometrial function and conceptus development in cattle. Reprod Fertil 1992, Dev 4:301-305

Thacher WW, Macmillan KL, Hansen PJ, Drost M. Concepts for regulation of corpus luteum function by the conceptus and ovarian follicles to improve fertility.

Theriogenology 1989, 31:149-164

Roberts RM, Farim CE, Cross JC. Trophoblast proteins and maternal recognition of pregnancy. In Milligan SR (ed): Reviews of Reproductive Biology 1990, Oxford University Press, 147-180

Flint APF, Stewart HJ, Lamming GE, Payne JH. Role of the oxytocin receptor in the choice between cyclicity and gestation in ruminants. J Reprod Fertil 1992, Suppl 45:


Macmillan KL, Day AM, Taufa VK, Gibb M, Pearce MG. Effects of an agonist of gonadotrophin releasing hormone (buserelin) in cattle. I. Hormone concentrations and oestrous cycle length. Anim Reprod Sci 1985, 8: 203-212

Bostedt H, Okyere K. Effect of a single GnRH injection on day 12 post insemination on peripheral LH and progesterone concentration in repeat breeder cows. Tierarztl Umsch 1988, 43: 421-429


  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.