Title ofthe paper: Eating quality of pork in well-chosen crossbreds The aim of the investigation was to present the effects of selected sire lines on the sensory quality of pork. By using a constant dam line (Large White * German Landrace) six sire breeds were included Hampshire, Duroc, Pietrain-NN, Pietrain-nn, Hampshire * Pietrain-nn, Duroc * Hampshire). 18 gilts and 18 castrates of each terminal crossbred were fattened aecording to the guidelines ofthe progeny-testing. In the traits evaluating the Status of PSE (pH,, electrical conduetivity, colour, drip loss) the descendants ofthe Pietrain-nn boars clearly decrease. Regarding different characteristics for the loss during heating (cooking loss, grilling loss, Rendement Napole) Duroc and Pietrain-NN sires cause positive and Hampshire sires negative effects. With respect to sensory traits and intramuscular fat content the descendants of Pietrain-nn are the worst and those of Duroc are the best. The latter however provide, together with Duroc * Hampshire offspring, the fattest carcass. ZusammenfassungZiel der Untersuchung war es, die Auswirkungen ausgewählter Vaterrassen auf die sensorische Qualität von Schweinefleisch darzustellen. Hierzu wurden bei gleich bleibender Mutterlinie (Deutsches Edelschwein * Deutsche Landrasse) sechs Eberherkünfte (Hampshire, Duroc, Pietrain-NN, Pietrain-nn, Hampshire * Pietrainnn, Duroc * Hampshire) eingesetzt. Pro Endmastherkunft wurden 18 weibliche und 18 kastrierte Tiere nach LPA-Richtlinien gemästet. In den Merkmalen zur Kennzeichnung des PSE-Status (pH,, LF 24 , Farbe, Tropfsaftverlust) fallen die Nachkommen von Pietrain-nn-Vätem deutlich ab. Bei den Erhitzungsverlusten (Koch-/Grillverlust, Rendement Napole) gehen von Duroc-sowie Pitrain-NN-Vätem positive und von Hampshire-Vätern negative Effekte aus. In der sensorischen Bewertung und beim intramuskulären Fettgehalt schneiden Pietrain-nn-Nachkommen am schlechtesten und Duroc-Nachkommen am besten ab. Letztere erbringen jedoch, zusammen mit Duroc •Hampshire-Nachkommen, auch die am stärksten verfetteten Schlachtkörper.
A campaign to eradicate Brucella ovis from sheep in the Falkland Islands, using a combination of serological tests and culling, was initiated in 1977 and continued until 1993 when, after a total of 65,266 tests had been carried out, the organism had been eradicated from the national flock. The paper discusses the relative values of the serological tests and suggests guidelines for maintaining the flock free of the infection.
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