Effects of Melatonin Implants During Non-Breeding Season on Sperm Motility and Reproductive Parameters in Rasa Aragonesa Rams

被引：85

作者：

Casao, A. ^{[1
]}

Vega, S. ^{[1
]}

Palacin, I. ^{[2
]}

Perez-Pe, R. ^{[1
]}

Lavina, A. ^{[4
]}

Quintin, F. J. ^{[3
]}

Sevilla, E. ^{[3
]}

Abecia, J. A. ^{[2
]}

Cebrian-Perez, J. A. ^{[1
]}

Forcada, F. ^{[2
]}

Muino-Blanco, T. ^{[1
]}

机构：

[1] Univ Zaragoza, Dept Biochem & Mol & Cell Biol, E-50013 Zaragoza, Spain

[2] Univ Zaragoza, Dept Anim Prod & Food Sci, E-50013 Zaragoza, Spain

[3] CENSYRA, Zaragoza, Spain

[4] ANGRA, Cabanera Real, Spain

来源：

REPRODUCTION IN DOMESTIC ANIMALS | 2010年 / 45卷 / 03期

关键词：

FOLLICLE-STIMULATING-HORMONE; LUTEINIZING-HORMONE; IN-VITRO; TESTICULAR SIZE; SEMINAL PLASMA; EXOGENOUS MELATONIN; PROLACTIN SECRETION; HUMAN SPERMATOZOA; SEMEN QUALITY; ADULT SHEEP;

D O I：

10.1111/j.1439-0531.2008.01215.x

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

Contents The effect of melatonin implants administered during non-breeding season in Rasa Aragonesa rams on sperm motility parameters and other reproductive traits was assessed. In a first experiment, two Rasa Aragonesa rams were implanted (with melatonin group M), remaining other two males as control group (C). Semen of each group was collected from 1 May to 23 June, twice or three times a week, and motility parameters were assessed using a computer-assisted sperm analysis system. Melatonin increased the percentage of progressive motile spermatozoa, particularly during 46-75 days after melatonin implantation (p < 0.01). In experiment 2, M and C in vitro fertilization ability had been determined by zona-pellucida binding assays, using spermatozoa from experiment 1, obtained 60-70 days after melatonin was implanted. A significantly higher number of spermatozoa attached per oocyte was observed in frozen-thawed immature ovine oocytes incubated with sperm from M animals than in those incubated with sperm from the C group (p < 0.01). Finally, a field assay (experiment 3) was performed. In this case, five Rasa Aragonesa rams were implanted with melatonin and three remained as control group. Sperm doses from those animals were used for artificial insemination of 2608 Rasa Aragonesa ewes from 39 different farms at non-breeding season. Fertility, litter size and fecundity were studied. Semen from melatonin implanted rams seemed to increase both fertility and fecundity in ewes inseminated with spermatozoa obtained 46-60 days after implantation (p < 0.1). Thus, melatonin treatment in rams during non-breeding season modifies sperm motility parameters and seems to improve the fertilization parameters obtained.

引用

页码：425 / 432

页数：8

共 41 条

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