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Registros recuperados: 6
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Características morfométricas de los órganos genitales de conejas Nueva Zelanda con distintos pesos corporales en el periodo de transición peripuberal Veterinaria México
Aragón Hernández,Jesús; Suárez Sánchez,Juan; Pérez-Martínez,Mario.
Se determinaron las características morfométricas de los órganos genitales de conejas de la raza Nueva Zelanda con distintos pesos corporales en el periodo de transición peripuberal. Se formaron cuatro grupos de acuerdo con un porcentaje del peso adulto (PA); Grupo A con 2 ± 0.1 kg (40% del PA); Grupo B con 3 ± 0.1 kg (60% del PA); Grupo C con 3.5 ± 0.1 kg (70% del PA) y Grupo D con 4 ± 0.1 kg (80% del PA). A las conejas se les sometió a eutanasia de acuerdo con el peso requerido para cada grupo. Se removieron ambos ovarios, cuernos uterinos, cérvix y vagina con el fin de medir su longitud. Se obtuvieron fragmentos de tejido ovárico que se procesaron por inclusión en parafina para efectuar cortes histológicos que se tiñeron con tricrómica de Masson. Se...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Conejo; Morfología; Órganos reproductivos femeninos; Peso corporal; Pubertad.
Ano: 2010 URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0301-50922010000300005
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Efecto del coumestrol sobre la producción espermática y la conducta de exploración olfatoria de perros estimulados con moco vaginal estral Veterinaria México
Pérez-Rivero,Juan José; Martínez-Maya,José Juan; Pérez-Martínez,Mario; Aguilar-Setién,Álvaro; Serrano,Héctor.
La sobrepoblación canina es un problema importante de salud pública debido a la transmisión de enfermedades zoonóticas y las agresiones hacia el humano. En el diseño de programas para controlar la población canina se requiere del conocimiento de su distribución, comportamiento y metodologías combinadas para tener éxito. El coumestrol es un fitoestrógeno que induce alteraciones en el aparato reproductor de los machos al unirse a los receptores estrogénicos alfa y beta, en donde actúa de manera dosis-dependiente como agonista o antagonista. Estos receptores también existen en las estructuras del sistema nervioso que regulan el comportamiento sexual, como la región preóptica, núcleo ventromedial, la amígdala y el bulbo olfatorio. En este estudio se administró...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Exploración olfatoria; Coumestrol; Perros; Producción espermática; Moco vaginal.
Ano: 2009 URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0301-50922009000100002
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Histometric Parameters of Uterus and Vagina in Breeder Female Rabbits on the Day After Weaning According to the Ordinal Number of Parturitions International Journal of Morphology
Banda-Herrera,José Alfonso; Aragón Hernández,Jesús; López Ordaz,Reyes; Hernández Espinosa,Jorge; Pérez-Martínez,Mario.
The objective of this study was to establish in New Zealand female rabbits, the effect of ordinal number of parturitions on some histological parameters on the day after weaning. Tissue fragments of uterus and vagina were obtained from females of first, second and third parturitions and were processed imbedding them in paraffin in order to do histological cuts. In eight microscope fields captured by a camera connected to an optic microscope, the lumen and glandular endometrial epithelium height, as well as the thickness of vaginal and myometrium epithelium thickness were measured. From the results that were obtained it was concluded that there are significant differences (p<0.05) in histological parameters evaluated in uterus and vagina between does of...
Tipo: Journal article Palavras-chave: Histometry; Uterus; Vagina; Weaning; Rabbit Doe.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000200058
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Histomorphology of Liver, Testicle and Body Fat in Farm Rabbits Fed with an Obesogenic Diet During the Peripuberal Period International Journal of Morphology
Mejía Huerta,Nancy Guadalupe; Córdova Izquierdo,Alejandro; Aragón Hernández,Jesús; Flores Pérez,Fernando Iván; Pérez-Martínez,Mario.
Two groups were formed in order to evaluate the effect of an obesogenic diet on body and liver weight, body fat accumulation and the histometric characteristics of liver and testicles of New Zealand rabbits during the peripuberal period. One group received a standard farm diet and the other received a standard farm diet with canola oil added. During the study, weight of both groups was recorded. At the end of the study, the rabbits were euthanized and liver, testicles, and visceral, scapular and scrotal fat were weighed. Tissue samples were obtained from liver and testicles to carry out histometric analysis. Body weight, body mass index, liver and visceral fat weight were significantly different (P<0.01) in the obesogenic diet when compared to the...
Tipo: Journal article Palavras-chave: Histometry; Rabbits; Liver; Testicle; Weight; Peripuberal period.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000400030
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Macroscopic Morphometric Analysis of Genital Organs of Rabbit does with Differing Parturitions at 24 Hours Post-weaning International Journal of Morphology
Aragón-Hernández,Jesús; Flores-Pérez,Fernando Iván; Hallal-Calleros,Claudia; Pérez-Martínez,Mario.
The purpose of this study was to analyze the macroscopic morphometry of the ovaries, uterus and vagina in rabbit does in the first, second and third parturition at 24 hours post-weaning in order to determine if there are differences between parturitions. Weaning of the litter was performed at 30 days post-partum and 24 hours later the does were euthanized. Right and left ovaries, uterine horns-cervix and vagina were removed, and the length of each one was measured. Significant differences were found in the average of the right ovary length between the first group with respect to second and third parturition group (P 0.05 and P 0.01). Also, left ovary length was different between the first and second with respect to third parturition group (P <0.001)....
Tipo: Journal article Palavras-chave: Rabbit doe; Post-weaning; Morphometry; Genital organs.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000300036
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Morphometric Differences in Testicular Tissue of Tadarida brasiliensis Bats from the Urban Area of Mexico City During Summer, Autumn, and Winter International Journal of Morphology
Pérez-Rivero,Juan J; Rendon-Franco,Emilio; Pérez-Martínez,Mario; Ávalos-Rodríguez,Alejandro; Ávila-Flores,Rafael.
Most of the neotropical bats reproduce in a seasonal fashion. The purpose of this study was to assess changes in testicular tissue by morphometry, in Tadarida brasiliensis bat, in a south urban zone of Mexico City during summer, autumn, and winter. Three sample collections (February, June, and September) from T. brasiliensis were carried out (n=6). Testicle fragments were obtained for histological studies. Diameter of the seminiferous tubules and interstitial space were measured, cellular populations were identified and counted. June samples showed smaller diameter of seminiferous tubules and larger interstitial space between tubules; also there were less number of germinal epithelium cells and spermatids were absent. Tissues from September and February...
Tipo: Journal article Palavras-chave: Tadarida brasiliensis; Morphometry; Testicle; Seasonal changes.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000300026
Registros recuperados: 6
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