Mineral content in leg muscle and liver of coypu (Myocastor coypus) Journal title: Aparatura Badawcza i Dydaktycza Authors: Ryszard Cholewa, Dorothea Beutling, Mirosław Mleczek, Gisela Arndt Subject(s): Science, Technology
Effect of different levels of protein in the mixture on the indicators of rearing nutria Journal title: Journal of Animal Science, Biology and Bioeconomy Authors: Ryszard Cholewa, Dorota Kołodziejczyk, Stanisław Socha Subject(s):