Benhenia Karim

• Directeur de recherche (Directeur de la division biotechnologie et santé) at Le Centre de Recherche en Biotechnologie

Combining cholesterol-loaded methyl-β-cyclodextrin (CD-CHL) with vitamin E-loaded methyl-β-cyclodextrin (CD-Vit E) to combat cold shock and oxidative stress during sperm cryopreservation in soybean lecithin extenders remains unexplored. Thus, the current study aimed to investigate the effect of treating bull sperm with CD-CHL and CD-Vit E prior t...

The experiment aimed to investigate for the effect of partial substitution of barley by partly destoned olive pomace on testosterone and some lipid levels in the blood, scrotal circumference, and semen quality of Ouled Djellal rams.

The aim of the present study was to develop regression models based on ultra-sonographic measurements of fetal eyes (orbital diameter (OD) and eyes volume (EV)) to determine mare gestational age (fetal age) in Arab-Barb breed and to compare the obtained formula with similar formulas used in practice. Twenty-two Arab-Barb mares were included in this...

The Algerian goat population, composed of about five million heads, is under-exploited. Traditionally raised, the goat has always been considered as a secondary species. In recent years, the breeders showed a renewed interest in the goat sector. However, they often prefer imported dairy breeds, even these do not adapt to the local environment, with...

Rosmarinus officinalis essential oil (Rom) has been reported recently to be of interest for use in sperm cryopreservation. However, related to its lipophilic characteristics, encapsulation in cyclodextrin could enhance Rom positive effects by increasing its solubility in sperm extenders. OBJECTIVE:To compare the effect of Rom preloaded in hydroxypr...

Rosmarinus officinalis essential oil (Rom) has been reported recently to be of interest for use in sperm cryopreservation. However, related to its lipophilic characteristics, encapsulation in cyclodextrin could enhance Rom positive effects by increasing its solubility in sperm extenders. OBJECTIVE:To compare the effect of Rom preloaded in hydroxypr...

cryopreservation of bovin sperm, fight against oxidative stress and cold shock

Arab-Barb, the main horse breed in Algeria, remains morphologically unknown. The aim of this study was, firstly, to show the variability of external morphometric measurements of Arab-Barb horse breed in four regions of Algeria: coastal plains, mountains, high tablelands and limits with desert areas (area bordering the desert) and secondly, to compa...

Vitamin E is a potent molecule, especially when loaded in cyclodextrin, in modulating oxidative stress during the freeze-thawing process. The present study aimed to investigate the effect of different concentrations of cyclodextrin-vitamin E complex (CD-Vit E) on cryopreserved ram sperm. Ejaculates collected from five adult rams were pooled and div...

The aim of the present study was to investigate the potential benefit of vitamin E and cholesterol when preloaded in cyclodextrins, alone or in association to protect ram epididymal sperm during the freezing-thawing process. Epididymal sperm were collected from Twenty four testes; sperm from the two testicles of each ram was pooled and divided in 7...