SELECTING THE DATE OF MATING IN FARM MINK (NEOVISON VISON) FOR OPTIMIZATION OF REPRODUCTION PERFORMANCE
Journal Title: Folia Pomeranae Universitatis Technologiae Stetinensis Agricultura Alimentaria Piscaria et Zootechnica - Year 2016, Vol 39, Issue 328
Abstract
The aim of this study was to analyse the influence of breeding factors, such as gestation length, age, dates and number of matings, on the female reproductive performance in farmed American mink (Neovison vison). We observed a group of 1372 females, variety Silverblue, in the period from 5 to 24 March (mating season) and from 25 April to 10 May (whelping period). We analysed the reproduction in females aged from 1 to 4 years. Apart from age, the evaluation of reproductive performance included the date of the first mating, number of matings and the length of pregnancy. We analysed the litter size at birth and at weaning, as well as the rate of barren females. The results showed that age, date of mating and the number of matings had a significant impact on the length of pregnancy and reproductive performance of the females. It was found that reproductive performance deteriorates in a longer gestation.
Authors and Affiliations
Hanna SZCZYPUŁKOWSKA, Lidia FELSKA-BŁASZCZYK
Keywords
Related Articles
- EP ID EP411765
- DOI -
- Views 66
- Downloads 0
THE EFFECT OF SLUDGE COMPOST ON THE CONTENT OF SELECTED ELEMENTS IN SOIL AND IN LOLIUM MULTIFLORUM LAM.
The aim of the paper, based on a two-year experiment set up in autumn 2012, is to assess the effects of different doses of municipal sewage sludge compost mixed with wheat straw on the content of selected chemical elemen...
THE NATIONAL PROGRAM FOR THE LIQUIDATION OF PESTICIDE WASTE LANDFILLS, SUCCESSES AND UNUSED OPPORTUNITIES – CASE STUDY FROM POLAND
Previous generations (50–70’s of the last century) left behind thousands of tons of toxic agrochemical waste (produced and stored for stock). Some of them have already been liquidated, but some have remained, because the...
EPIGENETICS OF REPRODUCTION
Epigenetic research offers a significant opportunity to understand the role of environmental interactions on the genome and disease, while enabling modulation of these interactions in order to improve human health. Knowl...
THE IMPACT OF SEWAGE SLUDGE AND BIOMASS ASH FERTILIZATION ON THE YIELD, INCLUDING BIOMETRIC FEATURES AND PHYISIOLOGICAL PARAMETERS OF PLANTS OF TWO JERUSALEM ARTICHOKE (Helianthus tuberosus L.) CULTIVARS
Jerusalem artichoke is one of such plants that can be put to energy use. The objective of the research study was to assess the impact of fertilization with sewage sludge and conifer sourced ash biomass on yields as well...
PHYSICO-CHEMICAL CHARACTERISTICS OF SELECTED HONEYS OF THE WEST POMERANIAN PROVINCE AND THE VALUE OF THEIR PRO-HEALTH
Recently there have been many studies on positive effect of honeys on various diseases, especially in treatment of cardiovascular diseases. Even though the majority of results suggest positive influence in the treatment...