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Abstract

Since the 1980s there has been a rapid increase in the numbers of foxes and mink inseminated in Norway. The importance of the accurate detection of oestrus and determination of the best time for insemination for conception rate and litter size is emphasized, and an account is given of a new ...

Author(s)
Westersjø, S. G.; Fougner, J. A.
Citation
Norsk Pelsdyrblad, 1999, 73, 2, pp 37
Abstract

In 1999, in Norway, mink at 5 farms were affected by mange, trichinosis affected foxes at 2 farms and suspected mink enteritis virus affected one farm. Feed-related diseases resulted in infertile females and fetal deaths in mink, and mink kits were affected by diarrhoea. For 35 500 fox females...

Author(s)
Fougner, J. A.
Citation
Norsk Pelsdyrblad, 2000, 74, 1, pp 18-20
Abstract

In 1996, in Finland, litter size at weaning averaged 4.64, 5.94, 6.28, 5.41, 2.91 and 5.83 respectively for mink, polecats, blue fox females mated with blue fox males, blue fox females mated with silver fox males, silver foxes and raccoon dogs in the general performance recording scheme vs. 5.02,...

Author(s)
Finlands Pälsdjursuppfödares Förbund
Citation
Finsk Pälstidskrift, 1997, 31, 5, pp 107-133
Abstract

In 1999, in Norway, the average litter size per mated or inseminated silver fox, blue fox and mink female was 3.3, 6.0 and 5.1 respectively 3 weeks after whelping and 3.0, 5.3 and 5.0 after 6 weeks. For inseminated silver and blue fox females (48 and 37% respectively of the total population),...

Author(s)
Fougner, A.; Kulbotten, H. A.circle over˜; Johannesen, K. R.
Citation
Norsk Pelsdyrblad, 1999, 73, 9, pp 14-15
Abstract

In 1999, litter size at 3 weeks (per mated female) averaged 5.2 for 13 000 mink, 3.5 for 6000 silver fox and 6.3 for 12 000 blue fox breeding females at 233 farms in Norway. The average litter size of inseminated silver and blue fox females was 3.3 and 6.2 respectively vs. 3.6 and 6.5 for naturally ...

Author(s)
Kristiansen, H.
Citation
Norsk Pelsdyrblad, 1999, 73, 10, pp 44-45
Abstract

81 semen samples were obtained from 94 collection attempts using electro-ejaculation. Semen volume averaged 0.11±0.01 ml, sperm concentration 1.01×108±0.21×108 per ml and sperm motility 71.6±0.02%. The semen samples were frozen. 20 of 24 samples of frozen semen were suitable for insemination. Of 5...

Author(s)
Hao, Y. F.
Citation
Acta Veterinaria et Zootechnica Sinica, 1990, 21, 1, pp 31-35
Abstract

Of 15 638 mink females, performance-recorded in Norway in 1998, 8.3% failed to give birth to a litter, and litter size per female whelping averaged 6.6 kits at birth and 6.0 at 3 weeks of age. Of 6831 silver fox and 19 763 blue fox females mated with males of their own type and 1447 blue fox...

Citation
Norsk Pelsdyrblad, 1998, 72, 10, pp 34-35
Abstract

In 1998, in Norway, the average number of young per mated mink, silver fox and blue fox female 3 weeks after whelping was 5.6, 3.2 and 5.7 respectively. The average number of cubs per inseminated female was 3.0 and 5.7 respectively for silver and blue fox females vs. 3.3 and 5.8 for naturally mated ...

Author(s)
Fougner, J.; Kulbotten, H. Ǻ.; Johannessen, K. R.
Citation
Norsk Pelsdyrblad, 1998, 72, 9, pp 12-13
Abstract

An account is given of reproductive performance, AI, pelt quality and production of mink, foxes, polecats and raccoon dogs and of recent research on furbearing animals in Finland.

Citation
Finsk Pälstidskrift, 1998, 32, 5, pp 135-170
Abstract

Of 14 076 mated or inseminated mink females recorded in Norway in 1997, 6.8% failed to produce a litter. Litter size at birth and at 3 weeks of age averaged 6.7 and 6.2 kits respectively, kit mortality was 10.9% and the average litter size at 3 weeks was 5.6 kits per mated female. Of 5653 silver,...

Author(s)
Johannessen, K. R.
Citation
Norsk Pelsdyrblad, 1997, 71, 10, pp 28-29

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