MORPHOLOGICAL PARAMETERS OF NEWLY BORN MINKS’ LIVEROF DIFFERENT MARKING IN THE CONTROL GROUP AND IN THE EXPERIMENTAL ONE INFLUENCED BIOSTEEL
The article explores the morphological features of liver structure of newly born American minks with Standard (+/+ +/+) marking, Sapphire (a/a p/p) marking and Lavender (a/a m/m) one in the standard variant and enhanced by biologically active specimen Biosteel. The investigated minks were divided into experimental and control groups of three marking genotypes. The minks from experimental group were bred from the parents fed with Biosteel a week before estrus during 5 days and during estrus 3 days dosed 0.05 ml/kg of body weight. The researchers didn’t feed the parents of experimental minks with Biosteel. The authors focused on anatomical and topographical parameters of liver, histological structure, the number of hemopoietic cells, morphometric parameters of hepatocytes and nucleoplasmic ratio. The authors found out that liver of minks aged 1 day is blood-forming; the authors observed the liver and noted intensive plastic and regeneration processes with intensive proliferation in the liver structure (gall duct, perivascular and subcapsule space) and high nucleoplasmic ratio. This parameter can have variations according to animal species and genotype.