Changes of fructose concentrations in seminal plasma and glucose and testosterone concentrations in blood plasma in rams over the course of a year

被引:0
作者
Matsuoka, Taiki
Imai, Hiroko
Asakuma, Sadaki
Kohno, Hirohide
Fukui, Yutaka [1 ]
机构
[1] Obihiro Univ Agr & Vet Med, Lab Anim Reprod, Obihiro, Hokkaido 0808555, Japan
[2] Obihiro Univ Agr & Vet Med, Grad Sch Food Hyg, Obihiro, Hokkaido 0808555, Japan
[3] Natl Livestock Breeding Ctr, Tokachi Stn, Otofuke 08008572, Japan
关键词
fructose; glucose; testosterone; seminal plasma; ram semen;
D O I
暂无
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
The present study was performed to examine seasonal changes in the fructose concentrations of seminal plasma and glucose and testosterone concentrations of blood plasma over the course of a year (from November 2004 to November 2005) using 5 Suffolk rams. Osmolality of the seminal plasma was also measured. The fructose concentrations in the seminal plasma increased as the breeding season approached, with the maximum in October (179.8 mg/dl) and the minimum in May (6.9 mg/dl), although there were no significant differences during the year. Osmolality of the seminal plasma in February (304 mOsm) was significantly (P < 0.05) lower than in January (325 mOsm), July (327 mOsm), and August (325 mOsm). It was also significantly (P < 0.05) lower in November (308 mOsm) than in January and August. The blood plasma glucose concentration in October (79.3 mg/dl) was significantly (P < 0.05) higher than in January and February (43.2 and 43.7 mg/dl, respectively). The blood plasma testosterone (T) concentrations were significantly (P < 0.05) higher in September (8.5 ng/ml) and October (10.2 ng/ml) than in other months. The fructose concentrations in the seminal plasma appeared to be related to the glucose and T concentrations in the blood plasma. These results show that fructose concentrations in the seminal plasma and blood plasma glucose and T concentrations tended to increase during the breeding season, with the highest concentrations in October.
引用
收藏
页码:805 / 810
页数:6
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