Effect of dietary melatonin supplementation on semen characteristics in adult roosters exposed to oxidative stress

Hammodat, H.A.; Hassan, A.A.

doi:10.33899/ijvs.2012.168762

	Effect of dietary melatonin supplementation on semen characteristics in adult roosters exposed to oxidative stress
Iraqi Journal of Veterinary Sciences
Article 15, Volume 26, Suppl. IV - Serial Number 5, 2012, Pages 373-379 PDF (243.55 K)
Document Type: Research Paper
DOI: 10.33899/ijvs.2012.168762
Authors
H.A. Hammodat; A.A. Hassan
Department of Physiology, Biochemistry & Pharmacology, College of Veterinary Medicine, University of Mosul, Mosul, Iraq
Abstract
The present study was designed to determine the effect of melatonin dietary supplementation 40 mg/kg in adult Ross 308 male chickens 24 weeks concomitantly exposed to oxidative stress induced by hydrogen peroxide (1%) with drinking water for 6 weeks on reproductive performance.Semen were collected at 0, 2, 4, 6 weeks. From the results no significant differences in the volume of ejaculates during the time of hydrogen peroxide treatment, while sperm concentration, mass motility and individual motility show significant decrease during the experimental period as compared with the control group, accompanied with a significant increase in dead and abnormal sperms during the experimental period as compared with zero time. Also, no significant differences in ejaculates volume in melatonin with hydrogen peroxide treatment compared with the hydrogen peroxide group and zero time, administration of melatonin with hydrogen peroxide caused significant increase in sperms concentration , individual motility at the 4^thand 6^th week and mass motility in 2^nd,4^thand 6^thweek compared with hydrogen peroxide group and the experiment period had no significant effects on sperm concentration and mass motility while significant increase appear in individual motility at the 6^thweek compared with zero time and 2^nd week. Melatonin dietary supplementation in roosters exposed to oxidative stress caused significant decrease in percentage of dead and abnormal sperms at 2^nd, 4^th and 6^th week compared with hydrogen peroxide group and there is no significant difference in dead sperms percentage during the experiment period while significant decrease appear at 4^thand 6^thweek in abnormal sperms percentage compared with zero time. Melatonin supplementation alone had no significant effects on ejaculates volumes of compared with zero time and the control group , while melatonin administration caused significant increase in sperm concentration at 4^th and 6^th week compared with the control group and zero time and 2^ndweek and cause increase in mass motility and individual motility at 6^th week of the experiment compared with the control group and zero time , the results showed that melatonin cause significant decrease in percentage of dead sperms during experiment period compared with the control group and zero time and in abnormal sperms percentage during the experiment period compared with the control group and then significantly decreased at 2^nd,4^th and 6^th week compared with zero time and the control group. It was concluded from this study that the dietary supplementation of melatonin reduce adverse effects that produced by hydrogen peroxide on semen characters in adult male chickens, and dietary supplementation of melatonin alone has a good effects in semen characters in adult male chickens.

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