References

1. Allen, W.R.; Rowson, L.E.A. Control of the mare's oestrus cycle by prostaglandins. J. Reprod. Fertil. 1973, 33 (3), 539 543.

2. Squires, E.L.; Heesemann, C.P.; Webel, S.K.; Shideler, R.K.; Voss, J.L. Relationship of altrenogest to ovarian activity, hormone concentrations and fertility of mares. J. Anim. Sci. 1983, 56 (4), 901 910.

3. Meinert, C.; Silva, J.F.; Kroetz, I.; Klug, E.; Trigg, T.E.; Hoppen, H.O.; Jochle, W. Advancing the time of ovulation in the mare with a short term implant releasing the GnRH analogue deslorelin. Equine Vet. J. 1993, 25 (1), 65 68.

4. Loy, R.G.; Hughes, J.P. The effects of human chorionic gonadotrophin on ovulation, length of estrus, and fertility in the mare. Cornell Vet. 1966, 56 (1), 41 50.

5. Stevenson, J.S.; Davis, D.L. Estrous synchronization and fertility in gilts after 14 or 18 day feeding of altrenogest beginning at estrus or diestrus. J. Anim. Sci. 1982, 55 (1), 119 123.

6. Guthrie, H.D.; Polge, C. Treatment of pregnant gilts with a prostaglandin analogue, Cloprostenol, to control oestrus and fertility. J. Reprod. Fertil. 1978, 52 (2), 271 273.

7. Meeker, D.L.; Rothschild, M.R.; Christian, L.L. Breed differences in return to estrus after PGF2 alpha induced abortions in swine. J. Anim. Sci. 1985, 61 (2), 354 357.

8. Zavy, M.T.; Geisert, R.D.; Buchanan, D.S.; Norton, S.A. Estrogen induced pseudopregnancy in gilts: Its use in estrus synchronization and subsequent influence on litter response. Theriogenology 1988, 30 (4), 721 731.

9. Sharkey, S.; Callan, R.J.; Mortimer, R.; Kimberling, C. Reproductive techniques in sheep. Vet. Clin. North Am., Food Anim. Pract. 2001, 17 (2), 420 435.

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