Open AccessBiological characteristics of Russian black pied cattle
Author(s) -
Т.В. Шишкина,
Т.А. Гусева,
N. V. Nikishova,
A. A. Naumov
Publication year - 2022
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/953/1/012006
Subject(s) - udder , breed , heredity , productivity , herd , biology , withers , zoology , veterinary medicine , body weight , genetics , mastitis , medicine , macroeconomics , microbiology and biotechnology , economics , endocrinology
The biological characteristics of farm animals depend on their species and breed differences, but at the same time they are subject to certain variability due to individual heredity. In this regard, from the number of first-calf cows (daughters of different bulls) eight groups of the same age cows were organized and examined. In addition, a group of 65 animals was formed to assess the exterior by the method of random sampling without taking into account their heredity. The current research is aimed to evaluate the first-calf cows in the following options: milk productivity, functional properties of the udder, body type and the main disadvantages of the exterior. As a result of the analysis, Alta Genetics cows showed the best milk productivity among other breeds. The cows of Alta Gost and Alta Samuari breeds turned out to have the best indicators for a number of economically useful traits. The AltaGost cows were characterized by the best milk yield. When assessing the exterior features and constitution, it was found that the greatest number of conformation defects is associated with the limbs: close hocks (35%); wide interdigital cleft (71%); narrow hoof (22%). Nevertheless, a visual assessment of a complex of features allows to refer all the examined cows to a good body type.