diet

Spend seasonal estimation diet of American mink on the river B. Irgiz between 2000 and 2011. The basis of nutrition predator: spring – amphibians (24.5% BIO), crayfish (43.1% BIO), mammals (21.3% BIO); summer – fish (29.3% BIO), amphibians (22.6% BIO), mammals (13.3% BIO); autumn – amphibians (43.3% BIO), fish (15.5% BIO), mammals (11.8% BIO); winter – fish (30.8% BIO); mammals (30.1% BIO). The regularities of changes in the composition of the diet in the conditions of anthropogenic load.

Studied the power of saiga in the Caspian lowland in June 2011. Mikrogistologichesky cuticularscatological analysis of undigested food residues revealed a specific and quantitative differences in the diet of animals on two types of pasture. Analysis of feeds and their digestibility revealed optimal habitat for the saiga.