Evaluation of slaughter cattle grades and standards of cull cows

A P Palii,S A Mihalchenko,S A Denicenko,A S Gembaruk,P V Gurskyi,V A Kovalchuk,I M Lukyanov,A P Paliy,N G Admina,O L Kuznietsov,Y O Kovalchuk,A V Solodchuk

doi:10.15421/2020_26

Abstract

Recently, due to the widespread implementation of intensive milk production technologies, the requirements for the type of animal physique have increased, because the theory and practice of breeding have proved that the economic and long-term use of cows is not possible without taking into account their exterior features and type of the constitution. The influence of the traits of the animals’ physique on the duration of their economic use was studied, and the main slaughter grades and standards minimum percentage of cows determined beaf cow culling were determined. We selected the criteria mainly caused the cattle removing from the herd: growth scale of score 4, sacral inclination – score 6, limb posture from rear and side views - score 5. The percentage of cattle culling with body condition score score ranged from 7 to 9 was determined.

Highlights

The success of the rational use of the animals’ natural resources depends on the genotype, the technology applied, the level of livestock feeding and the professional training of the personnel
According to our results the number of cull cows depends on their height (Figure 1)
A higher percentage of low-height culling cows is due to their lower productivity, which for 80-90 days of lactation was the lowest for both tied and loose housing

Summary

Introduction

The success of the rational use of the animals’ natural resources depends on the genotype, the technology applied, the level of livestock feeding and the professional training of the personnel. Each of these factors is of particular importance in the process of forming a highly productive dairy herd. We observe a growing interest in the problems of biorhythmology, the methodological principles of which penetrate into the study of all levels of living physique - from the molecule to the level of the whole organism. The main focus of animal breeding has been to increase their productive potential. For economic reasons, it matters what type of livestock should be guided when working with the breed in a particular natural and economic zone

Methods

Results

Conclusion