Objective evaluation of bovine carcasses. Part 1
1994
Augustini, C. | Dobrowolski, A. | Heining, F. (Bundesanstalt fuer Fleischforschung, Kulmbach (Germany). Inst. fuer Fleischerzeugung und Vermarktung)
The EC grading plan for the carcass of fully-grown cattle has two main disadvantages: it is subjective and the carcass characteristics that determine value are not recorded accurately enough. There is therefore no lack of demand, in Germany as elsewhere, for the recording of carcass values to be objectivized. This has not so much to do with technical conditions as with production -characterized by the large number of breeds, the different categories and the very varied methods of production - and with the peculiarities of the particular species, especially as regards fatty tissue. Considerable problems arise in relation to measurement methods because of the uneven distribution of this tissue, the relatively small proportion of subcutaneous fat in the total fat, the damage which the fat layer regularly suffers during slaughtering and the fact that the fat deposit is often very small. The following are the main methods available Video Image Analysis (VIA). This is used mainly for objective determination of conformation without making a cut. Determination of the fatty tissue grade is inadequate because of damage, often extensive, to the subcutaneous fat tissue during slaughtering. Video Image Analysis combined with the use of probes as in the Danish cattle classification system. Ultrasonic techniques, although their use presupposes that there is sufficient fatty tissue in the carcass and often requires additional interpretation of the ultrasonic pictures.
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