Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China.
Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China.
Poult Sci. 2022 May;101(5):101812. doi: 10.1016/j.psj.2022.101812. Epub 2022 Feb 25.
As the antioxidant capacity of sperm declines with age in roosters, the objective of the present study was to determine the effects of different levels of pyrroloquinoline quinone disodium (PQQ.Na) on antioxidative and sperm quality parameters of aging layer breeder roosters. A total of ninety-six 63-wk-old Jinghong No. 1 layer breeder roosters were randomly assigned to 4 treatments (0, 0.5, 1, 2 mg/kg PQQ.Na) for 6 wk. Antioxidant activity and semen parameters were assessed biweekly. The dietary administration of PQQ.Na significantly increased semen quality (semen volume, sperm motility, straightness, progressive motility, curvilinear velocity, straight-line velocity, and amplitude of lateral head displacement) and antioxidant capacity (T-SOD, GSH-Px, hydroxyl radical scavenging ability, and/or superoxide scavenging capacity) in seminal plasma in aging layer breeder roosters. Whereas, PQQ.Na supplementations significantly decreased malondialdehyde (MDA) concentration in seminal plasma in aging layer breeder roosters. Supplementation with 1 mg/kg dietary PQQ.Na as an antioxidant supplement could increase sperm quality and antioxidant activity of aging layer breeder roosters, while a higher dose (2 mg/kg) did not result in further increment.
随着公鸡精子抗氧化能力随年龄的增长而下降，本研究旨在确定不同水平的吡咯并喹啉醌二钠盐（PQQ.Na）对老龄蛋鸡种公鸡抗氧化和精子质量参数的影响。将 96 只 63 周龄的景红 1 号蛋鸡种公鸡随机分为 4 个处理组（0、0.5、1、2 mg/kg PQQ.Na），为期 6 周。每两周评估一次抗氧化活性和精液参数。日粮添加 PQQ.Na 可显著提高老龄蛋鸡种公鸡精液质量（精液量、精子活力、直线速度、曲线速度、精子运动的直线性、精子运动的摆动性、精子头部侧摆幅度）和精液抗氧化能力（T-SOD、GSH-Px、羟自由基清除能力和/或超氧阴离子清除能力）。然而，PQQ.Na 补充剂可显著降低老龄蛋鸡种公鸡精液中丙二醛（MDA）的浓度。日粮添加 1mg/kg PQQ.Na 作为抗氧化补充剂可以提高老龄蛋鸡种公鸡的精子质量和抗氧化活性，而更高的剂量（2mg/kg）并没有进一步提高。
