Efficiency of milk production depending on the age of cows at first calving

L. L. Petrukhina; S. L. Belozertseva

Siberian Herald of Agricultural Science
Sibirskij vestnik selʹskohozâjstvennoj nauki

ISSN 0370-8799 (Print)
ISSN 2658-462X (Online)

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Petrukhina L.L., Belozertseva S.L. Efficiency of milk production depending on the age of cows at first calving. Siberian Herald of Agricultural Science. 2020;50(6):54-59. (In Russ.) https://doi.org/10.26898/0370-8799-2020-6-6

This work is licensed under a Creative Commons Attribution 4.0 License.

ISSN 0370-8799 (Print)
ISSN 2658-462X (Online)

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About the Authors

L. L. Petrukhina
Irkutsk Research Institute of Agriculture - Branch of Irkutsk Scientific Centre of the Siberian Branch of the Russian Academy of Sciences
Russian Federation

Lidiya L. Petrukhina, Researcher

Pivovarikha village, Irkutsk region

S. L. Belozertseva
Irkutsk Research Institute of Agriculture - Branch of Irkutsk Scientific Centre of the Siberian Branch of the Russian Academy of Sciences
Russian Federation

Svetlana L. Belozertseva, Researcher

14, Dachnaya St., Pivovarikha village, Irkutsk district, Irkutsk region, 664511

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