Open AccessSimmental cattle breed lactation features of various productive types
Author(s) -
O.V. Sycheva,
E.I. Anisimova,
Ruslan Omarov,
Sergei Shlykov
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/848/1/012070
Subject(s) - lactation , breed , zoology , biology , dairy cattle , productivity , pregnancy , economics , genetics , macroeconomics
This article presents the results of studying the course of lactation of Simmental cows of various constitutionally productive types: dairy, milk-meat, and meat-and-milk in the conditions of the SEC "Abodimovskiy" on lactating (1-3 lactation) cows of the Simmental breed of German selection. There were studying the quantitative indicators and milk composition. There was calculating the lactation stability coefficients (LCC). The study’s findings were as follows that the nature of the lactation curve for dairy and dairy-meat constitutionally productive types of Simmental cattle can be recognized as "high unstable". It indicates that these cattle types are more milk productivity prevalence than meat. The nature of the lactation curve of the meat and dairy type of cattle is characterized as "moderately stable". It shows a clear difference from the first two constitutionally productive types.