Manual de laboratorio para el análisis del semen

Garzón, Federico Garriga

doi:10.3926/oss.5

Cited by 2 publications

(1 citation statement)

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“…The samples were photographed under an optical microscope (Leica DM500) at 100 times magnification. The anomalies present during development were evaluated and cataloged as malformations or delays in embryo development (López et al, 2012) at the four-cell stage.…”

Section: Developmental Anomaliesmentioning

confidence: 99%

Effects of Partial Mortality on Growth, Reproduction and Total Lipid Content in the Elkhorn Coral Acropora palmata

Piñón-González

Banaszak

2018

Front. Mar. Sci.

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Partial mortality (PM) is increasingly common in the Elkhorn coral Acropora palmata and, depending on the causative agent, is potentially lethal. The effects of PM on growth, reproduction and total lipid content in A. palmata were studied by sampling apparently healthy (AH) colonies in comparison with colonies showing signs of PM. Branch growth rates and lesion regeneration rates were estimated using monthly photographs over a four-month period prior to the summer spawning season. No differences were found in the growth rates of colonies with PM compared to AH colonies. The areas affected by PM did not regenerate during the period of the study. Colonization of the lesions by competing species and sediment cover were documented and did not show major changes. During the spawning season, percent fertilization, egg volume and embryonic development were evaluated for comparison between AH colonies and those with PM. Total lipids were also quantified in tissues from three branches per colony. Percentage fertilization was similar in both AH colonies and those with PM. Embryonic development was normal, regardless of proximity to the lesion borders. However, egg volume was significantly lower in PM colonies than in AH colonies. Lower lipid concentrations were found at the edges of the lesions and similar to those found at the growing edges of the branches. The lack of regeneration may be explained by the low lipid concentration, because the polyps adjacent to the lesion do not have an adequate energy budget as a result of the damage. This would also affect their ability to compete against organisms that colonize the site of the lesion, a distinct situation to the rapid regeneration rates characteristic of lesions due to physical injury of the colony. Therefore, we conclude that partial mortality in A. palmata affects the colony, inducing energetic stress due to both competition and decreased egg quality.

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Section: Developmental Anomaliesmentioning

confidence: 99%

Effects of Partial Mortality on Growth, Reproduction and Total Lipid Content in the Elkhorn Coral Acropora palmata

Piñón-González

Banaszak

2018

Front. Mar. Sci.

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Efecto de la suplementación con zinc y selenio sobre la calidad seminal en cerdos

Caraballo

Carrillo-González

2016

Rev Colombiana Cienc Anim. RECIA

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El sistema de producción porcina en Colombia, ha tenido un gran crecimiento en los últimos años, gracias a la implementación de técnicas como la inseminación artificial, la cual permite realizar un mejoramiento genético incrementando la productividad. Sin embargo, el modelo de manejo de los reproductores y donantes de semen no es el adecuado, siendo mantenidos en confinamiento, alimentados con dietas que no suplen los requerimientos de micronutrientes (Zn y Se) alterando la calidad seminal. Por lo anterior, se han propuesto modelos de suplementación con microminerales, tales como el Zinc y el Selenio. En el presente artículo se recopila, relaciona y discute, los diferentes efectos de la suplementación con estos microminerales, sobre los distintos mecanismos fisiológico-moleculares que afectan las principales características seminales del cerdo.

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Manual de laboratorio para el análisis del semen

Cited by 2 publications

References 0 publications

Effects of Partial Mortality on Growth, Reproduction and Total Lipid Content in the Elkhorn Coral Acropora palmata

Effects of Partial Mortality on Growth, Reproduction and Total Lipid Content in the Elkhorn Coral Acropora palmata

Efecto de la suplementación con zinc y selenio sobre la calidad seminal en cerdos

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