This study was aimed to evaluate the effects of dietary n-6:n-3 ratio and Vitamin E on the membrane properties and motility characteristics of spermatozoa in boars. Forty Duroc boars were randomly distributed in a 2 × 2 factorial design with two n-6:n-3 ratios (14.4 and 6.6) and two Vitamin E levels (200 and 400 mg kg-1 ). During 16 weeks of treatment, fresh semen was collected at weeks 0, 8, 1...

The fatty acid composition of sperm affects the fertilization rate. The objective was to investigate the effects of dietary fish oil (as a source of n-3 fatty acids) on semen quality and sperm fatty acid composition in sheep. Eight Zandi fat-tailed rams were randomly allocated into two groups and fed either a control diet or a diet supplemented with fish oil. Both diets were isocaloric and ison...

Elevating the level of specific omega-3 fatty acids in equine semen by dietary modification can improve motion characteristics of cooled-stored and frozen-thawed sperm. Stallions, which produce semen that has poor tolerance to cooling and freezing, would benefit most from this dietary modification.

Background: Spermatozoa preservation is an approach to improve the fertility rate to pass on the valuable genetic material from sire to their offspring. During the last 20 years, reproductive biotechnologists have focused on the approaches that improve spermatozoa cryosurvival. One of the possible mechanisms is supplementation in semen extender. Objectives: The aim of this study was to evaluat...

background: spermatozoa preservation is an approach to improve the fertility rate to pass on the valuable genetic material from sire to their offspring. during the last 20 years, reproductive biotechnologists have focused on the approaches that improve spermatozoa cryosurvival. one of the possible mechanisms is supplementation in semen extender. objectives: the aim of this study was to evaluate...

Background: Sumac (Rhus coriaria L.) belongs to Anacardiaceae family. The dried and powdered fruits are used as a food flavoring and medicinal plant. Objective: In this study, variability of fatty acid composition in some wild sumac fruits were investigated. Method: The samples were collected from their natural origins in central parts of Iran; Isfahan and Markazi province in the September to...

S PERMATOZOA from the caput, corpus and cauda epididymis and ejaculated sperm were analyzed for their phospholipid and phospholipid fatty acid content. Caput spermatozoa contained 16 and 34% more total phospholipid than sperm from the corpus and cauda epididymis, respectively. Caudal sperm were similar to ejaculated sperm in phospholipid content. Seminal plasma from ejaculated semen collected a...

The phospholipid membrane of mammalian spermatozoa has a characteristic fatty acid composition. In most mammals, DHA (docosahexaenoic acid; 22:6, a long-chain polyunsaturated omega-3 fatty acid, or a LC-PUFA) is the major component of the membrane, although this varies by species as well as by individual (4, 8). Recent research suggests that DHA is important to normal spermatozoa function. The ...

Objective The lipid composition of a mammal’s spermatozoa and seminal plasma vary in both structure and function. Evidence exists to suggest that dietary supplementation with the appropriate polyunsaturated fatty acids (PUFAs) affects spermatogenesis, semen quality and sperm motility. Therefore, this study has been conducted to evaluate the correlations between serum lipid profile and histologi...