HUMAN CHORIONIC GONADOTROPIN (hCG) APPLIED INSTEAD OF FIRST MATING IMPROVES REPRODUCTION IN MINK (NEOVISON VISON)
Journal Title: Folia Pomeranae Universitatis Technologiae Stetinensis Agricultura Alimentaria Piscaria et Zootechnica - Year 2016, Vol 38, Issue 326
Abstract
The 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.<br/><br/>
Authors and Affiliations
Beata SEREMAK, Kamil PŁAWSKI, Lidia FELSKA-BŁASZCZYK, Bogdan LASOTA
Keywords
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- EP ID EP79577
- DOI 10.21005/AAPZ2016.38.2.10
- Views 124
- Downloads 0
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