Публикация
PETKOVA, Zornitsa et al.
PETKOVA, Zornitsa et al. Study on the milk yield and lactation persistency of F4 crosses between Pleven blackhead sheep and the Assaf sheep during different lambing seasons : [електронно издание] / Zornitsa Petkova, Vasil Nikolov. // Bulgarian Journal of Agricultural Science , 28 (Suppl. 1), 2022, р. 72-79
Сист. N: 9399
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