Simmental cattle breed lactation features of various productive types

Abstract

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.

Breeding and genetic features of simmental animals of different production types

“…Ці групи тварин є важливою частиною структури породи, правильне використання яких може сприяти її покращенню за чистопородного розведення у різних природноекономічних зонах. Особливого значення це питання набуває, коли мова йде про симентальську породу (Sycheva, 2021).…”