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Copyright responsibility: D. S. Petkova, E. D. Zhekova
Source: Bulgarian journal of agricultural science
Year published: 2012
Volume: 5, 18
Pages: pg. 708-712
ID: LTU090043031
Source: Agricultural science and technology
Year published: 2021
Volume: 3, v. 13
Pages: pp 240-244
Signature: Сп 454
ID: LTU090058286
Source: Bulgarian journal of veterinary medicine
Year published: 2022
Volume: 1, v. 25
Pages: pp 130-138
Signature: Сп I 879
ID: LTU090058617
Pages:
