“…This improvement in motion characteristics can have a big impact on the fertility potential of semen ( Tsakmakidis, 2010 ), because there is a significant correlation between motility and fertility ( Herrara et al, 2005 ). This improvement might be attributed to the beneficial effects of either lecithin or vitamin E as they can combat reactive oxygen species (ROS) caused by various external and internal factors ( Leão et al, 2021 ). Figure 1 Effect of vitamin E × time interaction on total sperm motility (A) and on progressive motility (B); and lecithin × time interaction on total sperm motility (C) and on STR (D) in 45-wk-old Hubbard M99 Line A grandparent roosters fed diets for 60 d. Total sperm motility, progressive motility and STR were measured by sperm class analysis software (SCA).…”
The purpose of this study was to investigate the effect of dietary supplementation of different levels of soybean lecithin and vitamin E on semen quality parameters and some reproductive hormones in Hubbard grandparent roosters. The experiment was conducted in a 3 × 2 factorial arrangement with 3 levels of soybean lecithin (0, 1, and 2%) and 2 levels of vitamin E (0 and 300 mg/kg). Semen samples were collected on d 0, 20, 40 and 60 of the experiment and analyzed. Adding 1% soybean lecithin and vitamin E into the diet increased semen volume and sperm concentration, membrane integrity and viability (
P
< 0.05). Supplementing diets with 1 or 2% lecithin in addition to vitamin E significantly improved total motility and progressive motility (
P
< 0.05). Vitamin E significantly increased the amplitude of lateral head displacement (
ALH
) of sperm (
P
< 0.05). Although there was no effect on LH and FSH when diets were supplemented with vitamin E and 1 or 2% lecithin, testosterone concentration was increased (
P
< 0.05). Malondialdehyde (
MDA
) concentration was significantly lower in all 3 treatments containing vitamin E (
P
< 0.05). It can be concluded that supplementation of rooster diets with vitamin E and 1% lecithin can improve fertility related parameters in Hubbard grandparent roosters.
“…This improvement in motion characteristics can have a big impact on the fertility potential of semen ( Tsakmakidis, 2010 ), because there is a significant correlation between motility and fertility ( Herrara et al, 2005 ). This improvement might be attributed to the beneficial effects of either lecithin or vitamin E as they can combat reactive oxygen species (ROS) caused by various external and internal factors ( Leão et al, 2021 ). Figure 1 Effect of vitamin E × time interaction on total sperm motility (A) and on progressive motility (B); and lecithin × time interaction on total sperm motility (C) and on STR (D) in 45-wk-old Hubbard M99 Line A grandparent roosters fed diets for 60 d. Total sperm motility, progressive motility and STR were measured by sperm class analysis software (SCA).…”
The purpose of this study was to investigate the effect of dietary supplementation of different levels of soybean lecithin and vitamin E on semen quality parameters and some reproductive hormones in Hubbard grandparent roosters. The experiment was conducted in a 3 × 2 factorial arrangement with 3 levels of soybean lecithin (0, 1, and 2%) and 2 levels of vitamin E (0 and 300 mg/kg). Semen samples were collected on d 0, 20, 40 and 60 of the experiment and analyzed. Adding 1% soybean lecithin and vitamin E into the diet increased semen volume and sperm concentration, membrane integrity and viability (
P
< 0.05). Supplementing diets with 1 or 2% lecithin in addition to vitamin E significantly improved total motility and progressive motility (
P
< 0.05). Vitamin E significantly increased the amplitude of lateral head displacement (
ALH
) of sperm (
P
< 0.05). Although there was no effect on LH and FSH when diets were supplemented with vitamin E and 1 or 2% lecithin, testosterone concentration was increased (
P
< 0.05). Malondialdehyde (
MDA
) concentration was significantly lower in all 3 treatments containing vitamin E (
P
< 0.05). It can be concluded that supplementation of rooster diets with vitamin E and 1% lecithin can improve fertility related parameters in Hubbard grandparent roosters.
“…Adequate concentrations of vitamin E can increase vitamin E levels in all parts of the body [10], including sperm cells. With increased vitamin E concentrations in sperm cells, the cells in chicken semen do not experience oxidative stress [16], even after cryopreservation [69]; this causes the concentration of MDA and other radical components to rise, while the motility and viability percentage do not decrease and the mortality rate in sperm cells does not increase (Table -2). Increased vitamin E levels can also numerically control the number of abnormal sperm cells, although this was not a significant effect (Table -2).…”
Background and Aim: Among several factors, the sperm quality of poultry is affected by the rooster's body size and the availability of antioxidants like vitamin E. This study aimed to determine the effect of dietary vitamin E supplementation on rooster sperm quality through a meta-analysis.
Materials and Methods: After verification and evaluation, a total of 19 articles were included in this study. Data, including dietary vitamin E, semen volume, concentration, total sperm cells, pH, motility, viability, percentage of dead and abnormal sperm, vitamin E sperm content, malondialdehyde (MDA) content, and testosterone levels, were tabulated in a database; these were subsequently analyzed using mixed modeling with vitamin E dose as a fixed effect and study identity as a random effect.
Results: Dietary supplementation level of vitamin E significantly (p<0.001) affected sperm concentration, significantly affected motility (p<0.001), significantly affected sperm vitamin E (p<0.001), significantly affected viability (p<0.001), and significantly affected chicken sperm fertility (p=0.001). Vitamin E administration also significantly reduced the number of sperm cell deaths (p<0.001); however, increased dietary levels of vitamin E did not affect semen volume (p=0.853), pH (p=0.951), MDA (p=0.542), the percentage of abnormal sperm cells (p=0.343), nor testosterone levels (p=0.063).
Conclusion: Dietary vitamin E supplementation is recommended for male chickens since it generally enhances the quality of their sperm.
“…The addition of exogenous antioxidants into the freezing medium may ameliorate sperm damage by reducing the oxidative stress caused by cryopreservation. For frozen semen, resveratrol, lycopene, vitamin E, and quercetin are the most commonly used agents to protect sperm from ROS damage [ 229 , 230 ]. However, further studies are needed to evaluate how nanoparticles and additives affect clinical practice outcomes and embryo development when used for small numbers of poor-quality testicular spermatozoa.…”
Section: Cryopreservation Of Surgically Retrieved Sperm For Icsimentioning
Retrieving spermatozoa from the testicles has been a great hope for patients with non-obstructive azoospermia (NOA), but relevant methods have not yet been developed to the level necessary to provide resolutions for all cases of NOA. Although performing testicular sperm extraction under microscopic magnification has increased sperm retrieval rates, in vitro selection and processing of quality sperm plays an essential role in the success of in vitro fertilization. Moreover, sperm cryopreservation is widely used in assisted reproductive technologies, whether for therapeutic purposes or for future fertility preservation. In recent years, there have been new developments using advanced technologies to freeze and preserve even very small numbers of sperm for which conventional techniques are inadequate. The present review provides an up-to-date summary of current strategies for maximizing sperm recovery from surgically obtained testicular samples and, as an extension, optimization of in vitro sperm processing techniques in the management of NOA.
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