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Volume 61, issue 3 | Copyright
Arch. Anim. Breed., 61, 359-363, 2018
https://doi.org/10.5194/aab-61-359-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Original study 07 Sep 2018

Original study | 07 Sep 2018

The sex ratio in farmed American mink (Neovison vison)

Lidia Felska-Błaszczyk1, Natalia Ławrów1, Bogdan Lasota2, Beata Seremak2, Katarzyna Pęzińska-Kijak1, Krzysztof Żuk1, and Piotr Nowak1 Lidia Felska-Błaszczyk et al.
  • 1Laboratory of Animal Anatomy, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology, Doktora Judyma 14, 71-466 Szczecin, Poland
  • 2Department of Animal Reproduction Biotechnology and Environmental Hygiene, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology, Klemensa Janickiego 29, 71-270 Szczecin, Poland

Abstract. The aim of the study was to analyse the sex ratio of American mink litters in relation to dam's age, gestation length, and time interval between the first and second mating. The observations were carried out on a mink farm located in northern Poland. The analysis involved litters of 207 females, aged 1 (n = 107) and 2 years (n = 100), which successfully raised all the born kits. The sex of the offspring was identified on weaning. The kits were assigned to groups according to their dam's gestation length, mating date, and first-to-second mating interval. It was found that female kits quantitatively predominated over male offspring. Longer pregnancies, delayed mating time, and greater interval between the first and second mating was accompanied by a higher number of female births in relation to male births.

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The aim of the study was to analyse the sex ratio of American mink litters in relation to dam's age, gestation length, and time interval between the first and second mating. The observations were carried out on a mink farm located in northern Poland.
The aim of the study was to analyse the sex ratio of American mink litters in relation to dam's...
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