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| 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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| 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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| 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 |
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