4Hersteinsson P. Population genetics and ecology of different colour morphs of arctic foxes (Alopex lagopus) in Iceland [J]. Finnisch Game Res, 1989, 46: 64-78.
5Skrede A. Utilization of fish and animal byproducts in mink nutrition. I. Effect of source and level of protein on nitrogen balance, postweaning growth and characteristics of winter fur quality[J]. Acta Agri Scand, 1978, 28: 105-129.
6Vhile S G, Skrede A, Ahlstrom O, et al. Ileal and total tract nutrient digestibility in blue foxes (Alopex lagopus) fed extruded diets containing different protein sources[J]. Arch Anim Nutr, 2005, 59(1): 61-72.
7Rouvinen K. Effect of Omega-3 polyunsaturated fatty acids on body composition and health status of farm raised blue and silver fox [J]. Acta Agri Scand, 1991, 44: 401-414.
8NRC. Nutrient Requirements of Mink and Foxes[M]. Washington D C: National Academy Press, 1982.
9Gugolek A, Zablocki W, Kowalska D, et al. Nutrient digestibility in Arctic fox (Vulpes lagopus) fed diets containing animal meals [J]. Brazil J Vet Anita Sci, 2010, 62(4): 948-953.
10Sanz M, Flores A, Perez de Ayala P, et al. Higher lipid accumulation in broilers fed on saturated fats than in those fed on unsaturated fats [J]. Brit Poult Sci, 1999, 40: 95-101.