Revista Veterinaria Zacatecas 2005 - Universidad AutÃ³noma de ...

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M S Gutiérrez Loera et al the preovulatory gonadotropin surges. Endocrinology 1995; 136: 1014-1019. 15. McCracken JA, Schramm W, Okulics W. Hormone receptor control of pulsatil secretion of PGF 2 from the ovine uterus during luteolysis and its abrogation in early pregnancy. Anim Reprod Sci 1984; 7: 33-55. 16. Odham CM, Martin GB. Stimulation of seasonally anovular Merino ewes by rams. II Premature regression of ram induced corpora lutea. Anim Reprod Sci 1979; 1: 291-295. 17. Keisler DH, Inskeeo EK, Dailey RA. First luteal tissue in ewe lambs: Influence on subsequent ovarian activity and response to hysterectomy. J Anim Sci 1983; 57: 150-156. 18. Shape PH, McKibbin BD, Murphy BD, Manns GB. First postpartum ovulation and corpora lutea in ewes which lamb in the breeding season. Anim Reprod Sci 1986; 10: 61-74. 19. Braden TD, Sawyer HR, Niswender GD. Functional and morphological characteristics of the first corpus luteum formed after parturition in ewes. J Reprod Fertil 1989; 86: 525-533. 20. Hunter MG. Characteristics and causes of the inadequate corpus luteum. J Reprod Fertil 1991; 43 (Suppl): 77-89. 21. Garverick HA, Zollers WG, Smith MF. Mechanisms associated with corpus luteum lifespan in animals having normal or subnormal luteal function. Anim Reprod Sci 1992; 28: 111-124. 22. Camp JC, Wilddt DE, Howard PK, Stuart LD, Chakraborty PK. Ovarian activity during normal and abnormal length estrous cycles in the goat. Biol Reprod 1983; 28: 673-681. 23. Llewelyn CA, Ogaa JS, Obwolo MJ. Plasma progesterone profiles and variation in cyclic ovarian activity throughout the year in indigenous goats in Zimbabwe. Anim Reprod Sci 1993; 30: 301-311. 24. Arvizú R, Hernández-Cerón J, Alberti A, Porras A, Valencia J. Inicio de la actividad ovárica posparto y características de la primera ovulación en cabras criollas paridas en dos épocas del año. Avances en Investigación Agropecuaria 1995; 4: 9-15. 25. McLeod BJ, Harensing W, Lamming GE. Response of seasonally anestrous ewes to small-dose multiple injection of GnRH with and without progesterone pretreatment. J Reprod Fertil 1982; 65: 223-230. 26. Chemineau P. Effects of a progestagen on buck-induced short ovarian cycles in the Creole meat goat. Anim Reprod Sci 1985; 9: 87-94. 27. Bon Durant RH, Darien BJ, Munro CJ, Stabenfeldt GH, Wang P. Photoperiod induction of fertile Oestrus and changes in LH and progesterone concentrations in yearling dairy goats (Capra hircus). J Reprod Fertil 1981; 63: 1-9. 28. Espinosa-Márquez MC, Valencia J, Zarco L, Escobar-Medina FJ, Colina- Flores F, Arechiga-Flores CF. Effect of fluorogestone acetate on embryo recovery and quality in eCGsuperovulated goats with premature luteal regression. Theriogenology 2004; 62: 624-630. 29. Hunter MG, Ayad VJ, Gilbert CL, Southee JA, Wathes DC. Role of prostaglandin F 2 and oxytocin in the regression of GnRH-induced abnormal corpora lutea in anoestrus ewes. J Reprod Fertil 1989; 85: 551-561. 30. Peter AT, Bosu WK, Liptrap RM, Cummins E. Temporal changes in serum prostaglandin F2 and oxytocin in dairy cows with short luteal phases after the first postpartum ovulation. Theriogenology 1989; 32: 277-284. 31. Schwarzenberger F, Palme R, Bamberg E, Mostl E. A review of fecal progesterone metabolite analysis for noninvasive monitoring of reproductive function in mammals. Int J Mammal Biol 1997; 62 (Suppl II): 214-221. 206
Progesterona en suero sanguíneo y heces ABSTRACT Gutiérrez-Loera MC, Escobar-Medina FJ, Rincón-Delgado RM, de la Colina-Flores F. Serum and feces progesterone concentration in active sexually goats. Serum and feces progesterone concentration were measured in four female goats in order to estimate the degree of association between these two measurements during the mating season. Blood samples were collected daily for twenty days. Resulting correlation coefficients were 0.79 (P 0.05) and 0.63 (P < 0.05) for each goat, respectively. Overall correlation coefficient was 0.73 and significantly different from zero (P
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