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Animal Science Papers and Reports > 2009 > 27 > 1 > 23-32
Polish Journal of Veterinary Sciences > 2009 > 12 > 2 > 231-235
Animal Science Papers and Reports > 2009 > 27 > 1 > 23-32
Polish Journal of Veterinary Sciences > 2009 > 12 > 2 > 231-235