Vergleich der Schlachtkörperzusammensetzung bei Schweinen abhängig von Herkunft, Geschlecht und Kastrationsverfahren mittels Teil-, Vollzerlegung und AutoFOM III Schätzung.

A total of 125 animals were examined to check the validity of the estimation of the carcass composition of boars and immuno castrates using AutoFOM III (AF3) and the German reference formula for lean meat content based on females and surgical castrates. These animals represented four sex categories, gilts (W), surgical castrates (K), immunological castrates (IM) and boars (ME) originating from two different genetic backgrounds (Duroc and Pietrain sire breeds). Manual dissection was used as reference method. In addition, 32 of the 125 animals were fully dissected into tissue components according to the EU reference method. The percentage of total carcass lean meat was estimated with sufficient accuracy regardless of genetics or category. However, weight estimation of primal cuts by AF3 alone showed in some cases high deviations. An average overestimation of 8.4% in boneless loin weights was found for animals with Duroc sires. In Pietrain, an average overestimation of 5.3% was found for the weight of boneless ham. The AF3 weight estimation of all cuts for ME showed the highest deviations, closely followed by the cut weights from IM. Particularly striking was the extent of the overestimation for boneless loin with an average of 6.3% for ME and 5.6% for IM. [ABSTRACT FROM AUTHOR]