Hayanti Sari Yanti, Hidayat Cecep, Jayanegara Anuraga, Sholikin Mohammad Miftakhus, Rusdiana Supardi, Widyaningrum Yeni, Masito Masito, Yusriani Yenni, Qomariyah Novia, Anggraeny Yenny Nur
Jambi Assessment Institute for Agricultural Technology, Jambi City 36128, Indonesia.
Indonesian Research Institute for Animal Production, Ciawi, Bogor 16720, Indonesia.
Vet World. 2022 Feb;15(2):419-426. doi: 10.14202/vetworld.2022.419-426. Epub 2022 Feb 24.
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.
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.
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).
Dietary vitamin E supplementation is recommended for male chickens since it generally enhances the quality of their sperm.
在诸多因素中，家禽的精子质量受公鸡体型以及维生素E等抗氧化剂的可获得性影响。本研究旨在通过荟萃分析确定日粮补充维生素E对公鸡精子质量的影响。
经过验证和评估，本研究共纳入19篇文章。将包括日粮维生素E、精液体积、浓度、总精子细胞数、pH值、活力、存活率、死精和畸形精子百分比、精子维生素E含量、丙二醛（MDA）含量以及睾酮水平等数据制成表格存入数据库；随后以维生素E剂量为固定效应、研究个体为随机效应，采用混合模型进行分析。
日粮中维生素E的添加水平对精子浓度有显著影响（p<0.001），对活力有显著影响（p<0.001），对精子维生素E有显著影响（p<0.001），对存活率有显著影响（p<0.001），对鸡精子受精能力有显著影响（p=0.001）。维生素E的施用还显著减少了精子细胞死亡数量（p<0.001）；然而，日粮中维生素E水平的升高对精液体积（p=0.853）、pH值（p=0.951）、MDA（p=0.542）、畸形精子细胞百分比（p=0.343）以及睾酮水平（p=0.063）均无影响。
建议对公鸡日粮补充维生素E，因为它通常能提高公鸡精子质量。
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