日本纯血种公马繁殖季节下马精液中精子形态的变化

Change in Morphology of Spermatozoa from Dismount Semen during the Breeding Season in Thoroughbred Stallions in Japan.

作者信息

Koyago Masanori, Nakada Ken, Tsunoda Nobuo, Moriyoshi Masaharu, Sawamukai Yutaka

机构信息

Department of Large Animal Clinical Sciences, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan.

Shadai Corporation, Abira, Hokkaido 059-1500, Japan.

出版信息

J Equine Sci. 2009;20(1):1-5. doi: 10.1294/jes.20.1. Epub 2009 Apr 17.

DOI:10.1294/jes.20.1

PMID:24833962

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4013956/

Abstract

To clarify the physiological changes of sperm morphology in active Thoroughbred stallions during the breeding season, we examined the dismount semen collected from the penile urethra immediately after service. The spermatozoa were analyzed for relationships between the morphology and the stallion's age or the number of services. Seasonal variation was apparent in the rate of the sperm tail abnormalities, spermatozoa with cytoplasmic droplets, appearance of medusa cells, and sperm head length. Area and width of the sperm head correlated negatively with age (P<0.05). The rate of appearance of medusa cells and the length of the sperm head were positively related to the number of services (P<0.05), and the aspect ratio was negatively related (P<0.01).

摘要

为了阐明繁殖季节活跃的纯种公马精子形态的生理变化，我们检查了配种后立即从阴茎尿道采集的射精后精液。分析了精子形态与种马年龄或配种次数之间的关系。精子尾部异常率、有细胞质滴的精子、水母状细胞的出现以及精子头部长度存在明显的季节性变化。精子头部的面积和宽度与年龄呈负相关（P<0.05）。水母状细胞的出现率和精子头部长度与配种次数呈正相关（P<0.05），而长宽比呈负相关（P<0.01）。