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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Malmsten, Jonas Söderquist, Lennart Thulin, Carl-Gustaf Dalin, Anne-Marie |
| Description | Author Affiliation: Malmsten J ( Division of Reproduction, Department of Clinical Sciences, Swedish University of Agricultural Sciences, Box 7054, SE-750 07 Uppsala, Sweden); Söderquist L ( Division of Reproduction, Department of Clinical Sciences, Swedish University of Agricultural Sciences, Box 7054, SE-750 07 Uppsala, Sweden. Electronic address: lennart.soderquist@slu.se.); Thulin CG ( Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, SE-901 83 Umeå, Sweden. Electronic address: carl-gustaf.thulin@slu.se.); Dalin AM ( Division of Reproduction, Department of Clinical Sciences, Swedish University of Agricultural Sciences, Box 7054, SE-750 07 Uppsala, Sweden. Electronic address: anne-marie.dalin@slu.se.) |
| Abstract | Knowledge of the reproductive biology of game species is vital for sustainable management. In moose (Alces alces), research in reproductive characteristics has focused on the female, whereas there are few studies in male moose. The aim of the present study was to investigate sperm morphology and chromatin integrity (SCSA), and their relationships with testicular and epididymal features, as well as temporal aspects with respect to the hunting season. In total, 143 male moose aged 1.5-11.5 years were sampled from 2008 to 2011. The proportion of normal spermatozoa (PNS) ranged from 1.5% to 82.0%, with a mean of 51%, and the %DFI (DNA fragmentation index) ranged from 2.5% to 36.7% (mean 9.5). PNS decreased temporally, and was positively associated with carcass and testes weight. Body weight and testes weight had positive effect on PNS regardless of age. No effect of any explanatory variables was observed on the DFI. The testis/body weight ratio of moose (0.033%) is among the lowest reported among mammals, indicating a less polygynous mating system than in roe deer and red deer. For reproduction success in moose, a high body weight in males is favorable, as is a balanced sex ratio. Thus, males should not be harvested prior to the time when the majority of females have passed their first oestrus of the season. |
| File Format | HTM / HTML |
| ISSN | 03784320 |
| Volume Number | 153 |
| e-ISSN | 18732232 |
| Journal | Animal Reproduction Science |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-02-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Animal science Discipline Reproductive Medicine Discipline Veterinary Medicine Discipline Zoology Aging Physiology Body Weight Deer Genitalia, Male Anatomy & Histology Semen Analysis Veterinary Spermatozoa Cytology Age Factors Animals Body Weights And Measures Chromatin Metabolism Dna Fragmentation Epididymis Female Male Reproduction Seasons Testis Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Animal Science and Zoology Endocrinology Food Animals |
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