Biopolymers and cell. 1996; 12 (6): 57 - 62

Genetic control of minks (Mustela vison Schreber) development. Communication 2. Factors affecting the deficiency in sapphire offspring of silver-blue females heterozygous by Aleutian gene

Yu. V. Vagin

The analysis ofsapphire (ppaa) younger animals portion inoffspring ofsilver-blue females heterozygous by Aleutian gene (ppAa) was carried out depending on birth liner quantity, pregnancy duration and date of puppy birth. The portion of sapphire puppies in mixed litter was found to correlate with the birth litter Quantity and date of birth. The conclusion was drawn the selective sapphire embryos elimination to be connected with blastocyst implantation.