A meta-analysis of studies of the effect of GnRH 11-14 days after insemination on pregnancy rates in cattle

Theriogenology

Volumn 54, Issue 8, 2000, Pages 1317-1326

  Peters, A R ^a,b   Martinez, T A ^a   Cook, A J C ^a  

^a Royal Veterinary College Hawkshead Campus ^*  (United Kingdom)

^b PFIZER GLOBAL RESEARCH AND DEVELOPMENT   (United Kingdom)

Author keywords

Cattle; Fertility; GnRH; Meta analysis

Indexed keywords

BOS TAURUS; BOVINAE;

GONADORELIN;

ANIMAL; ARTICLE; ARTIFICIAL INSEMINATION; CATTLE; CLINICAL TRIAL; FEMALE; META ANALYSIS; PHYSIOLOGY; PREGNANCY; PREGNANCY RATE; REGRESSION ANALYSIS; RISK; STATISTICAL MODEL;

ANIMALS; CATTLE; FEMALE; GONADOTROPIN-RELEASING HORMONE; INSEMINATION; LOGISTIC MODELS; ODDS RATIO; PREGNANCY; PREGNANCY RATE; REGRESSION ANALYSIS;

EID: 0034332297     PISSN: 0093691X     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0093-691X(00)00438-6     Document Type: Article

References (30)

1. P Armitage, and G Berry Statistical Methods in Medical Research 1994 Blackwell Science Oxford 215 219
2. SD Beckett, and IJ Lean Gonadotrophin-releasing hormone in postpartum dairy cattle: a meta-analysis of effects on reproductive efficiency Anim Reprod Sci 48 1997 93 112
3. NR Burton, and IJ Lean Investigation by meta-analysis of prostaglandin F2α administered post partum on the reproductive performance of dairy cattle Vet Rec 136 1995 90 94
4. SB Drew, and AR Peters Effect of buserelin on pregnancy rates in dairy cows Vet Rec 134 1994 267 269
5. S Greenland A critical look at some popular meta-analytic methods Am J Epidemiol 140 1994 290 296
6. TF Jubb, D Abhayaratne, J Malmo, and GA Anderson Failure of an intramuscular injection of an analogue of GnRH 11 to 13 days after insemination to increase pregnancy rates in dairy cattle Aust Vet J 67 1990 359 361
7. H. Lajili, P Humblot, and M Thibier Effect of PGF2 alpha treatment on conception rates of dairy cows treated with a GnRH agonist 12 to 14 days after artificial insemination Theriogenology 36 1991 335 347
8. DG LeFever, MD Holland, GA Greathouse, DW Schafet, JS Brinks, and KG Odde Effect of GnRH treatment twelve days after timed insemination on pregnancy rate in beef cattle Proc Am Soc Anim Sci 1991 397
9. KL Macmillan, VK Taufa, and AM Day Effects of an agonist of GnRH (buserelin) in cattle. III. Pregnancy rates after a post-insemination injection during metoestrus or dioestrus Anim Reprod Sci 11 1986 1 10
10. GE Mann, and GE Lamming The influence of progesterone during pregnancy in cattle Reprod Dom Anim 34 1999 269 274
11. GE Mann, GE Lamming, and MD Fray Plasma oestradiol and progesterone during early pregnancy in the cow and the effects of treatment with buserelin Anim Reprod Sci 37 1995 121 131
12. GE Mann, and HM Picton Ovarian and uterine effects of a single buserelin injection on Day 12 of the oestrous cycle in the cow J. Reprod Fertil 1995 Abstract Series no. 15. Abstr. 61.
13. MO Mee, JS Stevenson, RK Scoby, and Y Folman Influence of gonadotropin-releasing hormone and timing of insemination relative to estrus on pregnancy rates of dairy cattle at first service J Dairy Sci 73 1990 1500 1507
14. WF Morgan, and IJ Lean Gonadotrophin-releasing hormone treatment in cattle: a meta-analysis of the effects on conception at the time of insemination Aust Vet J 70 1993 205 209
15. M Muir, A Stannett, JE Offer, PJH Ball, C Taylor, and DN Logue Oestrus synchronisation combined with buserelin administration in beef cattle Vet Rec 143 1998 143 144
16. AR Peters Embryo mortality in the cow Anim Breeding Abstr 64 1996 587 598
17. A Petrie, and P Watson Statistics for Veterinary and Animal Science 1999 Blackwell Science Oxford 56
18. I Rettmer, JS Stevenson, and LR Corah Pregnancy rates in beef cattle after administering a GnRH agonist 11 to 14 days after insemination J Anim Sci 70 1992 7 12
19. DP Ryan, E Kopel, MP Boland, and F MacEoin Effects of Receptal administered at time of service or Day 12 of the estrous cycle on pregnancy rates in Holstein cows in Saudi Arabia 11th Int Congr Anim Reprod and A I 4 1988 University College Dublin, Ireland Paper no. 457.
20. DP Ryan, S Snijders, T Condon, M Grealy, J Sreenan, and KJ O'Farrell Endocrine and ovarian responses and pregnancy rates in dairy cows following the administration of a gonadotrophin releasing hormone analog at the time of artificial insemination or at mid-cycle post insemination Anim Reprod Sci 34 1994 179 191
21. Ph Saratsis, B Schmidt-Adamopoulou, P Ypsilantis, Ch Brozos, and A Demertzis Effect of Buserelin on corpus luteum activity and the fertility of dairy cows Bulletin of the Hellenic Veterinary Medical Society 49 1998 34 38
22. IM Sheldon, and H Dobson Effects of GnRH administered 11 days after insemination on the pregnancy rates of cattle to the first and later services Vet Rec 133 1993 160 163
23. Stata Corp. Stata statistical software: Release 5.0 1997 Stata Corporation College Station, Texas
24. JS Stevenson, EP Call, RK Scoby, and AP Phatak Double insemination and gonadotropin releasing hormone treatment of repeat-breeding dairy cattle J Dairy Sci. 73 1990 1766 1772
25. JS Stevenson, AP Phatak, I Rettmer, and RE Stewart Postinsemination administration of Receptal: Follicular dynamics, duration of cycle, hormonal responses, and pregnancy rates J Dairy Sci 76 1993 2536 2547
26. VK Taufa, KL Macmillan, AM Day, MJ Ashcroft, and S Morgan Some effects of using progesterone and gonadotrophin releasing hormone on the reproductive performance of inseminated cows Proc N Z Soc Anim Prod 58 1998 92 94
27. WW Thatcher, FM Drost, JD Savio, KL Macmillan, KW Entwistle, EJ Schmitt, RL De la Sota, and GR Morris New clinical uses of GnRH and its analogues in cattle Anim Reprod Sci 33 1993 27 49
28. WW Thatcher, KL MacMillan, PJ Hansen, and M Drost Concepts for regulation of corpus luteum function by the conceptus and ovarian follicles to improve fertility Theriogenology 1 1989 149 164
29. WW Thatcher, MD Meyer, and G Danet-Desnoyers Maternal recognition of pregnancy J Reprod Fertil 49 1995 15 28 (Suppl.)
30. R Webb, JG Gong, AS Law, and SM Rusbridge Control of ovarian function in cattle J Reprod Fertil 45 1992 141 156 (Suppl.)