Д/1383
Каталог "Дисертации" | Дисетации
Evolutionary trends in Heteroptera
Eggs, architecture of the shell, gross embryology and eclosion
(1968)
R. Cobben
Б 1098
Каталог "Статии" | Списание
Physiological condition and productivity of hens, depending on the provision area for keeping in cages
(2022)
Vitaliy Kychmistov
A 2280
Каталог "Статии" | Списание
The Egg Production Efficiency Index (EPEI) as an economic indicator for measuring poultry egg production
(2023)
Hristo Lukanov; Atanas Genchev; Todor Petrov
Б 1098
Каталог "Статии" | Списание
Study on New F1 Silkworm Hybrids with regards to the Values of Some Quantitative characters Influencing Silk Production
(2022)
Krasimira Avramova
A 2280
Каталог "Статии" | Списание
Historical review of the development of Bulgarian livestock production
(2022)
Dobry Yarkov; Konstantin Stankov; Ivan Stankov
A 2302
Каталог "Статии" | Списание
Efficiency of Streptomyces Biomass Administration in the Feeding of Laying Hens
(2022)
Igor Petcu
Каталог "Статии" | Списание
Effect of genotype, feather growth-rate gene and the age of hens on the egg quality
(2014)
Каталог "Статии" | Списание
Investigations on the chemical composition of carp ( Cyprinus carpio L. ), bighead carp ( Aristichthys nobilis Rich. ) and pike ( Esox lusius L. ) during different stages of individual growth
(2008)
L. Hadjinokolova
Каталог "Статии" | Списание
Study on the heterosis and its components in hybrids between monobivoltine and polyvoltine strains of silkworm (Bombyx mori L. ) with reference to the cocoon yield characteristic
(2005)
Y. Nacheva; P. Tzenov; N. Petkov