Wydanie 326(38)2 2016
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Przeglądaj Wydanie 326(38)2 2016 wg Autor "Department of Biotechnology of Animal Reproduction and Environmental Hygiene West Pomeranian University of Technology, Szczecin"
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Pozycja Open Access Human chorionic gonadotropin (hCG) applied instead of first mating improves reproduction in mink (Neovison vison)(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2016) Seremak, Beata; Pławski, Kamil; Felska-Błaszczyk, Lidia; Lasota, Bogdan; Department of Biotechnology of Animal Reproduction and Environmental Hygiene West Pomeranian University of Technology, Szczecin; Department of Biotechnology of Animal Reproduction and Environmental Hygiene West Pomeranian University of Technology, Szczecin; Laboratory of Animal Anatomy, West Pomeranian University of Technology, Szczecin; Department of Biotechnology of Animal Reproduction and Environmental Hygiene West Pomeranian University of Technology, SzczecinThe aim of the study was to determine how an administration of chorionic gonadotropin (hCG) in place of the first mating would affect breeding performance of female American mink (Neovison vison). The experiment was conducted in two consecutive breeding seasons on groups of females composed of one- and two-year old mink, similar in body weight, belonging to three colour morphs: Sapphire, Standard Brown (Wild), and Mahogany. The experimental group were females treated with an injection of 20 IU hCG instead of being subjected to the first mating. The females were first mated on day 8 after the treatment, repeated on the following day (scheme: 8 + 9). The control females were mated in a conventional way, three times (scheme: 1 + 8 + 9). Statistically significant differences were found in litter sizes (both numbers of born and live-born kits) in favour of the hormonally treated females. The Mahogany females, treated with hCG, produced larger litters in both studied seasons, whereas Standard Brown and Sapphire females – in the second year of the experiment. The results indicate a positive effect of hCG stimulation on the fertility of female mink and advocate its use in the breeding practice.