Effects of Dietary Lipoic Acid Supplementation on Seminal Parameters and Fertility Potential in Aging Broiler Breeder Roosters

Publish Year: 1398
نوع سند: مقاله کنفرانسی
زبان: English
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RROYAN20_213

تاریخ نمایه سازی: 29 مهر 1398

Abstract:

Background: High levels of polyunsaturated fatty acids in avi-an sperm cause more susceptibility to lipid peroxidation. The antioxidant capacity of sperm decreases with age-increasing and thus the fertility is reduced in aging roosters. The purpose of this study was to investigate the effects of different levels of lipoic acid (LA) as a feed supplement to improve the semen quality and fertility parameters of aged broiler breeder roosters. Materials and Methods: A total of forty-two roosters in 56 weeks were randomly assigned into seven treatments (0, 25, 50, 75, 100, 125 and 150 mg LA/bird per day) for eight weeks. Semen parameters, malondialdehyde (MDA) in seminal plasma and body weight were assessed weekly and artificial insemina-tion was performed at the end of experiment to evaluate the fertility potential.Results: The dietary administered of LA had no significant ef-fects on body weight, semen volume, and sperm concentration between groups (P> 0.05), but LA levels were linearly associ-ated with a decreased seminal concentration of MDA (P<0.05). The total motility, progressive motility, viability, membrane integrity and morphology of sperms had an incremental trend until the level of 100 mg LA (P<0.05). The same trend was observed in the fertility rate and the level of 100 mg LA showed the best performance after artificial insemination (P<0.05).Conclusion: These results suggest that 100 mg dietary lipoic acid as an antioxidant supplement can improve semen quality and the fertility rate of aging breeder roosters.

Authors

A Behnamifar

Depaetment of Embryology, Reproductive Biomedicine Research, Tehran, Iran

SH Rahimi

Depaetment of Embryology, Reproductive Biomedicine Research, Tehran, Iran

MA Karimi Torsizi

Depaetment of Embryology, Reproductive Biomedicine Research, Tehran, Iran

M Sharafi

Depaetment of Embryology, Reproductive Biomedicine Research, Tehran, Iran