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Journal of Central European Agriculture, Vol. 17 No. 2, 2016.

Original scientific paper

https://doi.org/10.5513/JCEA01/17.2.1699

Physical characteristics of ejaculates produced by insemination boars depending on the interval between successive ejaculate collections

Magdalena BAJENA ; Department of Animal Reproduction and Hygiene, Siedlce University of Natural Sciences and Humanities, 08-110 Siedlce, Prusa 14 Street, PolandMazovian Centre for Animal Breeding and Reproduction, Lowicz, Poland
Stanisław KONDRACKI ; Department of Animal Reproduction and Hygiene, Siedlce University of Natural Sciences and Humanities, 08-110 Siedlce, Prusa 14 Street, Poland
Maria IWANINA ; Department of Animal Reproduction and Hygiene, Siedlce University of Natural Sciences and Humanities, 08-110 Siedlce, Prusa 14 Street, Poland
Anna WYSOKIŃSKA ; Department of Animal Reproduction and Hygiene, Siedlce University of Natural Sciences and Humanities, 08-110 Siedlce, Prusa 14 Street, Poland
Agnieszka ADAMIAK ; Department of Animal Reproduction and Hygiene, Siedlce University of Natural Sciences and Humanities, 08-110 Siedlce, Prusa 14 Street, PolandMazovian Centre for Animal Breeding and Reproduction, Lowicz, Poland

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Abstract

The ejaculate characteristics of Polish Landrace boars showed a significant correlation with the intervals between the successive ejaculate collections. The effect of insemination use intensity was however varied. Rising frequency of ejaculate collection led to a systematic and fairly even fall in ejaculate volume. Ejaculate sperm concentration remained at a relatively high level when ejaculates were collected with a frequency of 7 to 3 days but further shortening of the interval between the successive collections led to a drastic decrease in sperm concentration. An increase in ejaculate collection frequency to every four and fewer days resulted in a significant decrease in the number of spermatozoa present in the produced ejaculates and a concomitant decrease in the number of insemination doses prepared from these ejaculates, with an escalation of such changes.

Keywords

boar; ejaculate quality; ejaculation frequency

Hrčak ID:

158957

URI

https://hrcak.srce.hr/158957

Publication date:

2.6.2016.

Article data in other languages: polish

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