Effect of various antioxidants on ovarian tissue vitrification success in sheep.

Background: Vitrification is a technique of cryopreservation that has been proposed as a promising alternative method for the preservation of oocytes, embryos and gonadal tissue.

Objective: To determine the effect of different antioxidants on post-thaw viability, morphology of retrieved oocytes and histology of vitrified ovarian tissue.

Materials And Methods: Four different antioxidants [i.

In vitro Assessment of Tris Egg Yolk and Soybean Lecithin Based Extenders for Cryopreservation of Crossbred Ram Semen.

Background: The replacement of egg yolk with alternative plant-derived soybean lecithin is gaining interest in both animal and human sperm cryopreservation owing to biosecurity issues with egg yolk based extenders.

Objective: To evaluate the comparative effect of egg yolk and soyabean lecithin based extenders on the quality of cryopreserved crossbred ram semen.

Methods: Pooled ejaculates (total ejaculates = 36) were divided into two aliquots and extended with Tris egg yolk extender (Tris extender) and soybean lecithin based commercial extender (Ovixcell) RESULTS: Among the two extenders, Ovixcell showed better sperm quality both at the pre-freeze (Sperm motility) and post-thaw stages.

Sarcoptic mange in dogs: Its effect on liver, oxidative stress, trace minerals and vitamins.

The present study was aimed to determine the effect on liver, associated oxidative stress, trace element and vitamin alteration in dogs with sarcoptic mange. A total of 24 dogs with clinically established diagnosis of sarcoptic mange, divided into two groups, severely infested group (n=9) and mild/moderately infested group (n=15), according to the extent of skin lesions caused by sarcoptic mange and 6 dogs as control group were included in the present study. In comparison to healthy control hemoglobin, PCV, and TEC were significantly (P<0.