STUDY OF BULLS DAILY LIVE WEIGHT CHANGES ON THE BASIS OF THE EXPERIMENTAL WEIGHT PLATFORM DATA

Abstract

The primary indicators beef cattle grow are body weight and average daily gain. The animal's weights daily changes have not been studied in sufficient detail
due to the laboriousness and conventional weighing methods stressfulness. The body weight changes during the day study became possible with the use of automatic
weighing platforms that measures animal’s weights, for instance, during cattle drinking or feeding. In terms of the work, the statistical studies of the weighing data
of bulls Kazakh white-headed breed were carried out. The data was obtained from the stress-free weighing platform, previously developed at S.Seifullin Kazakh Agro
Technical Research University named after. S. Seifullin. The per hour body weight changes of 10 bulls of the Kazakh white-headed breed were analyzed during 16 days of observation. The absolute changes in the body weight of bulls for every 24 hours were 22.5±10.15 kg or 6.81±2.86% relative to their full body weight. The hourly dynamic of drinking and bull's average live weight changes was studied.