The objectives of this study were (1) to determine the effect of rabbit seminal plasma on LH secretion and ovulation using the llama animal model as an in vivo ovulation bioassay and (2) to determine the effect of llama or rabbit seminal plasma on ovulation induction in the rabbit model. In Exper...
Silva Jiménez, Mauricio
,
Nino, A.
,
Guerra, M.
,
Letelier, C.
,
Valderrama, X.P.
,
Adams, G.P.
,
Ratto Fuster, Marcelo
,
[Is an ovulation-inducing factor (OIF) present in the seminal plasma of rabbits?]
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Is an ovulation-inducing factor (OIF) present in the seminal plasma of rabbits?
This study was designed to determine the effect of location of the preovulatory dominant follicle and stage of ovarian follicle development on ovulation rate and embryo survival in alpacas. In Experiment 1, mature lactating alpacas were randomly assigned to one of two groups according to the loca...
Ratto Fuster, Marcelo
,
Cervantes, M.
,
Norambuena, C.
,
Silva Jiménez, Mauricio
,
Miragaya, M.
,
Huanca, W.
,
[Effect of location and stage of development of dominant follicle on ovulation and embryo survival rate in alpacas]
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Effect of location and stage of development of dominant follicle on ovulation and embryo survival rate in alpacas
We determined if laterality of ovulation and intrauterine embryo location differentially induces changes in the mesometrial/endometrial vascularization area (MEVA) between uterine horns, during and after embryo migration, elongation and implantation in llamas. Adult, non-pregnant and non-lactatin...
Ratto, Marcelo H.
,
Urra, Felipe
,
Silva Jiménez, Mauricio
,
[Laterality of Ovulation and Presence of the Embryo Do Not Affect Uterine Horn Blood Flow During the First Month of Gestation in Llamas]
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Laterality of Ovulation and Presence of the Embryo Do Not Affect Uterine Horn Blood Flow During the First Month of Gestation in Llamas
The aim of this study was to evaluate the effect of increasing incubation temperature of Araucana hen eggs on embryo mortality, hatchability, chick, yolk sac and internal organs weight. Eggs (n=426) were randomly distributed into: a) Control group (n=215), which were incubated at 37.5 degrees C f...
The aim of this study was to evaluated changes in endometrial vascularization area (EVA) between the left and right uterine horn: a) during the ovarian follicular growth in intact llamas, and b) after exogenous estradiol administration of estradiol benzoate in ovariectomized (OVX) llamas. In expe...
Silva Jiménez, Mauricio
,
Urra, Felipe
,
Ratto, Marcelo
,
[Uterine endometrial vascularitazion during ovarian folicular growth in llamas: The effect of estradiol plasma concentration]
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Uterine endometrial vascularitazion during ovarian folicular growth in llamas: The effect of estradiol plasma concentration
Buecher, D. D.
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Castro, M. A.
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Silva Jiménez, Mauricio
,
Berland Olea, Marco
,
Concha, I. I.
,
Ratto, Marcelo
,
[GRANULOCYTE-MACROPHAGE COLONY STIMULATNG FACTOR (GM-CSF) ENHANCES CUMULUS CELLS EXPANSION OF IN VITRO-MATURED BOVINE CUMULUS-OOCYTE COMPLEXES IN A CHEMICALLY DEFINED MEDIUM]
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GRANULOCYTE-MACROPHAGE COLONY STIMULATNG FACTOR (GM-CSF) ENHANCES CUMULUS CELLS EXPANSION OF IN VITRO-MATURED BOVINE CUMULUS-OOCYTE COMPLEXES IN A CHEMICALLY DEFINED MEDIUM
The aim of this study was to evaluated changes in endometrial vascularization area (EVA) between the left and right uterine horn: a) during the ovarian follicular growth in intact llamas, and b) after exogenous estradiol administration of estradiol benzoate in ovariectomized (OVX) llamas. In expe...
Silva Jiménez, Mauricio
,
Urra, Felipe
,
Ratto, Marcelo
,
[Uterine endometrial vascularization during ovarian follicular growth in llamas: The effect of estradiol plasma concentration]
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Uterine endometrial vascularization during ovarian follicular growth in llamas: The effect of estradiol plasma concentration
Silva Jiménez, Mauricio
,
Adams, G.
,
Ratto, M.
,
[Relationship between pre-ovulatory follicle diameter and corpus luteum size and function after ovulation induction with GnRH or ovulation-inducing factor in llamas]
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Relationship between pre-ovulatory follicle diameter and corpus luteum size and function after ovulation induction with GnRH or ovulation-inducing factor in llamas
Cryopreservation of stallion semen has not reached the level of efficiency and positive results described in other species. This is mainly due to the greater sensitivity of stallion sperm to the freezing process, showing higher rates of oxidative stress and plasma membrane damage, which trigger t...
Jose Contreras, Maria
,
Treulen, Favian
,
Elena Arias, Maria
,
Silva Jiménez, Mauricio
,
Fuentes, Fernanda
,
Cabrera, Paulina
,
Felmer, Ricardo
,
[Cryopreservation of stallion semen: Effect of adding antioxidants to the freezing medium on sperm physiology]
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Cryopreservation of stallion semen: Effect of adding antioxidants to the freezing medium on sperm physiology
Contents Conventional in vitro fertilization has not yet been implemented in the equine species. One of the main reasons has been the inability to develop a culture medium and incubation conditions supporting high levels of stallion sperm capacitation and hyperactivation in vitro. Although differ...
Arroyo Salvo, Camila
,
Sanhueza, Francisco
,
Fuentes, Fernanda
,
Treulen, Favian
,
Arias, Maria Elena
,
Cabrera, Paulina
,
Silva Jiménez, Mauricio
,
Felmer, Ricardo
,
[Effect of human tubal fluid medium and hyperactivation inducers on stallion sperm capacitation and hyperactivation]
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Effect of human tubal fluid medium and hyperactivation inducers on stallion sperm capacitation and hyperactivation