Research Article

Multiple paternity in American mink: using males of different color lines allows mating efficiency evaluation

Beata Seremak 1 , Lidia Felska-Błaszczyk 2, Marta Dworecka-Borczyk1

1*Department 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

2Laboratory of Animal Anatomy, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology, Doktora Judyma 14,71-466 Szczecin, Poland

Abstract. The study aimed at developing an optimal mink (Neovison vison) mating system by examining the effectiveness of multiple paternity, which was achieved by mating a female to two males of contrastingly different color lines over an interval of time within the same estrus. The hypothesis tested was that embryos generated from the first mating survived and developed despite subsequent matings. The experiment was carried out in two consecutive breeding seasons on a mink farm. We used pure genetic lines of the coat-color varieties. In order to find the most effective system of mating, we counted the offspring sired by each male. Mating to two males of different coat colors on two, time-separated dates produced litters consisting of two distinctly marked groups of kits, easily recognizable as to which kit had been sired by which male. This suggests that blastocysts generated from the first mating do survive until parturition and, what is more, develop normally. Despite prior mating to another male, kits derived from the subsequent mating were more numerous in the litter.

Keywords: American mink, breeding, multiple mating

 

This Article

Received: 1 Jul 2020

Accepted: 15 Aug 2020

Published online: 2 Sep 2020

Accesses: 41

How to cite

Seremak, B., Felska-Błaszczyk, L., Dworecka-Borczyk, M., (2020). Multiple paternity in American mink: using males of different color lines allows mating efficiency evaluation. Acta Sci. Pol. Zootechnica, 19(2), 55–62. DOI: 10.21005/asp.2020.19.2.07.