[{"date_created":"2026-04-30T14:33:04Z","publication_identifier":{"issn":["0003-925X"]},"date_updated":"2026-05-04T09:32:30Z","publication_status":"published","volume":75,"department":[{"_id":"DEP4028"},{"_id":"DEP4029"}],"year":"2024","abstract":[{"text":"The introduction of error feedback systems can lead to a reduction in the occurrence of errors. Therefore, it was investigated whether the proportion of contaminated carcasses can be reduced by installing a feedback system (preInspector) indicating an accumulation of contamination on a pig slaughter line. The technical equipment for the workplace of a „preInspector“ was installed on the slaughter line between the evisceration and official meat inspection. The person working there operated various hand buttons („buzzers“) depending on the type of carcass defects that occurred. In this case, contamination with tubular rail fat and faecal contamination, on the belly and/or on the back, were registered. Other defects were related to the plucks (tongue, trachea, oesophagus, lungs, heart, diaphragm, liver), intestinal package, hair and claw removal. After inspecting the carcass halves and activating the buzzer, the signals were collected. The detection was automatically assigned to the corresponding pig.\r\nThe average slaughter rate was 1200 pigs per hour. As soon as the number of contaminations rose above a threshold of 50 contaminations per 60-minute time interval, a light signal was triggered at the corresponding workstations on the slaughter line. On average, 981 positive buzzer activities related to contaminations per day were detected, with large fluctuations of the frequency between 323 and 1,752. An influence on the frequency of contamination occurrence through the feedback to the corresponding workstations was not observed.","lang":"eng"}],"issue":"6","title":"Influence of a hygiene feedback system during pig slaughter on the frequency of carcass contamination","author":[{"first_name":"Janna","last_name":"Tholen","id":"80924","full_name":"Tholen, Janna"},{"first_name":"Matthias","id":"12666","full_name":"Upmann, Matthias","last_name":"Upmann"}],"place":"Alfeld, Leine ","type":"scientific_journal_article","intvolume":"        75","publication":"Journal of food safety and food quality : JFSFQ : Archiv für Lebensmittelhygiene","article_type":"original","doi":"10.53194/0003-925X-75-156","page":"156-160","_id":"13723","user_id":"83781","keyword":["Contamination","industrial pig slaughter","faecal contamination","hygiene feedback system"],"publisher":"Schaper","language":[{"iso":"eng"}],"citation":{"apa":"Tholen, J., &#38; Upmann, M. (2024). Influence of a hygiene feedback system during pig slaughter on the frequency of carcass contamination. <i>Journal of Food Safety and Food Quality : JFSFQ : Archiv Für Lebensmittelhygiene</i>, <i>75</i>(6), 156–160. <a href=\"https://doi.org/10.53194/0003-925X-75-156\">https://doi.org/10.53194/0003-925X-75-156</a>","havard":"J. Tholen, M. Upmann, Influence of a hygiene feedback system during pig slaughter on the frequency of carcass contamination, Journal of Food Safety and Food Quality : JFSFQ : Archiv Für Lebensmittelhygiene. 75 (2024) 156–160.","chicago-de":"Tholen, Janna und Matthias Upmann. 2024. Influence of a hygiene feedback system during pig slaughter on the frequency of carcass contamination. <i>Journal of food safety and food quality : JFSFQ : Archiv für Lebensmittelhygiene</i> 75, Nr. 6: 156–160. doi:<a href=\"https://doi.org/10.53194/0003-925X-75-156\">10.53194/0003-925X-75-156</a>, .","ieee":"J. Tholen and M. Upmann, “Influence of a hygiene feedback system during pig slaughter on the frequency of carcass contamination,” <i>Journal of food safety and food quality : JFSFQ : Archiv für Lebensmittelhygiene</i>, vol. 75, no. 6, pp. 156–160, 2024, doi: <a href=\"https://doi.org/10.53194/0003-925X-75-156\">10.53194/0003-925X-75-156</a>.","mla":"Tholen, Janna, and Matthias Upmann. “Influence of a Hygiene Feedback System during Pig Slaughter on the Frequency of Carcass Contamination.” <i>Journal of Food Safety and Food Quality : JFSFQ : Archiv Für Lebensmittelhygiene</i>, vol. 75, no. 6, 2024, pp. 156–60, <a href=\"https://doi.org/10.53194/0003-925X-75-156\">https://doi.org/10.53194/0003-925X-75-156</a>.","chicago":"Tholen, Janna, and Matthias Upmann. “Influence of a Hygiene Feedback System during Pig Slaughter on the Frequency of Carcass Contamination.” <i>Journal of Food Safety and Food Quality : JFSFQ : Archiv Für Lebensmittelhygiene</i> 75, no. 6 (2024): 156–60. <a href=\"https://doi.org/10.53194/0003-925X-75-156\">https://doi.org/10.53194/0003-925X-75-156</a>.","din1505-2-1":"<span style=\"font-variant:small-caps;\">Tholen, Janna</span> ; <span style=\"font-variant:small-caps;\">Upmann, Matthias</span>: Influence of a hygiene feedback system during pig slaughter on the frequency of carcass contamination. In: <i>Journal of food safety and food quality : JFSFQ : Archiv für Lebensmittelhygiene</i> Bd. 75. Alfeld, Leine , Schaper (2024), Nr. 6, S. 156–160","short":"J. Tholen, M. Upmann, Journal of Food Safety and Food Quality : JFSFQ : Archiv Für Lebensmittelhygiene 75 (2024) 156–160.","ufg":"<b>Tholen, Janna/Upmann, Matthias</b>: Influence of a hygiene feedback system during pig slaughter on the frequency of carcass contamination, in: <i>Journal of food safety and food quality : JFSFQ : Archiv für Lebensmittelhygiene</i> 75 (2024), H. 6,  S. 156–160.","van":"Tholen J, Upmann M. Influence of a hygiene feedback system during pig slaughter on the frequency of carcass contamination. Journal of food safety and food quality : JFSFQ : Archiv für Lebensmittelhygiene. 2024;75(6):156–60.","ama":"Tholen J, Upmann M. Influence of a hygiene feedback system during pig slaughter on the frequency of carcass contamination. <i>Journal of food safety and food quality : JFSFQ : Archiv für Lebensmittelhygiene</i>. 2024;75(6):156-160. doi:<a href=\"https://doi.org/10.53194/0003-925X-75-156\">10.53194/0003-925X-75-156</a>","bjps":"<b>Tholen J and Upmann M</b> (2024) Influence of a Hygiene Feedback System during Pig Slaughter on the Frequency of Carcass Contamination. <i>Journal of food safety and food quality : JFSFQ : Archiv für Lebensmittelhygiene</i> <b>75</b>, 156–160."},"status":"public"},{"status":"public","article_type":"original","publication":"Journal of Food Safety and Food Quality","doi":"10.53194/0003-925X-75-156","intvolume":"        75","external_id":{"isi":["001419320700001"]},"publisher":"M. & H. Schaper","alternative_title":["Influence of a hygiene feedback system during pig slaughter on the frequency of carcass contamination"],"citation":{"chicago-de":"Tholen, Janna und Matthias Upmann. 2024. Einfluss eines Hygiene-Rückmeldesystems während der Schweineschlachtung auf die Häufigkeit auftretender Schlachtkörperverunreinigungen. <i>Journal of Food Safety and Food Quality</i> 75, Nr. 6: 156–160. doi:<a href=\"https://doi.org/10.53194/0003-925X-75-156\">10.53194/0003-925X-75-156</a>, .","havard":"J. Tholen, M. Upmann, Einfluss eines Hygiene-Rückmeldesystems während der Schweineschlachtung auf die Häufigkeit auftretender Schlachtkörperverunreinigungen, Journal of Food Safety and Food Quality. 75 (2024) 156–160.","apa":"Tholen, J., &#38; Upmann, M. (2024). Einfluss eines Hygiene-Rückmeldesystems während der Schweineschlachtung auf die Häufigkeit auftretender Schlachtkörperverunreinigungen. <i>Journal of Food Safety and Food Quality</i>, <i>75</i>(6), 156–160. <a href=\"https://doi.org/10.53194/0003-925X-75-156\">https://doi.org/10.53194/0003-925X-75-156</a>","ieee":"J. Tholen and M. Upmann, “Einfluss eines Hygiene-Rückmeldesystems während der Schweineschlachtung auf die Häufigkeit auftretender Schlachtkörperverunreinigungen,” <i>Journal of Food Safety and Food Quality</i>, vol. 75, no. 6, pp. 156–160, 2024, doi: <a href=\"https://doi.org/10.53194/0003-925X-75-156\">10.53194/0003-925X-75-156</a>.","chicago":"Tholen, Janna, and Matthias Upmann. “Einfluss eines Hygiene-Rückmeldesystems während der Schweineschlachtung auf die Häufigkeit auftretender Schlachtkörperverunreinigungen.” <i>Journal of Food Safety and Food Quality</i> 75, no. 6 (2024): 156–60. <a href=\"https://doi.org/10.53194/0003-925X-75-156\">https://doi.org/10.53194/0003-925X-75-156</a>.","mla":"Tholen, Janna, and Matthias Upmann. “Einfluss eines Hygiene-Rückmeldesystems während der Schweineschlachtung auf die Häufigkeit auftretender Schlachtkörperverunreinigungen.” <i>Journal of Food Safety and Food Quality</i>, vol. 75, no. 6, 2024, pp. 156–60, <a href=\"https://doi.org/10.53194/0003-925X-75-156\">https://doi.org/10.53194/0003-925X-75-156</a>.","din1505-2-1":"<span style=\"font-variant:small-caps;\">Tholen, Janna</span> ; <span style=\"font-variant:small-caps;\">Upmann, Matthias</span>: Einfluss eines Hygiene-Rückmeldesystems während der Schweineschlachtung auf die Häufigkeit auftretender Schlachtkörperverunreinigungen. In: <i>Journal of Food Safety and Food Quality</i> Bd. 75. Hannover, M. &#38; H. Schaper (2024), Nr. 6, S. 156–160","ufg":"<b>Tholen, Janna/Upmann, Matthias</b>: Einfluss eines Hygiene-Rückmeldesystems während der Schweineschlachtung auf die Häufigkeit auftretender Schlachtkörperverunreinigungen, in: <i>Journal of Food Safety and Food Quality</i> 75 (2024), H. 6,  S. 156–160.","short":"J. Tholen, M. Upmann, Journal of Food Safety and Food Quality 75 (2024) 156–160.","van":"Tholen J, Upmann M. Einfluss eines Hygiene-Rückmeldesystems während der Schweineschlachtung auf die Häufigkeit auftretender Schlachtkörperverunreinigungen. Journal of Food Safety and Food Quality. 2024;75(6):156–60.","ama":"Tholen J, Upmann M. Einfluss eines Hygiene-Rückmeldesystems während der Schweineschlachtung auf die Häufigkeit auftretender Schlachtkörperverunreinigungen. <i>Journal of Food Safety and Food Quality</i>. 2024;75(6):156-160. doi:<a href=\"https://doi.org/10.53194/0003-925X-75-156\">10.53194/0003-925X-75-156</a>","bjps":"<b>Tholen J and Upmann M</b> (2024) Einfluss eines Hygiene-Rückmeldesystems während der Schweineschlachtung auf die Häufigkeit auftretender Schlachtkörperverunreinigungen. <i>Journal of Food Safety and Food Quality</i> <b>75</b>, 156–160."},"language":[{"iso":"ger"}],"page":"156-160","_id":"11912","user_id":"83781","year":"2024","department":[{"_id":"DEP4029"}],"type":"scientific_journal_article","place":"Hannover","author":[{"full_name":"Tholen, Janna","id":"80924","last_name":"Tholen","first_name":"Janna"},{"full_name":"Upmann, Matthias","id":"12666","last_name":"Upmann","first_name":"Matthias"}],"issue":"6","title":"Einfluss eines Hygiene-Rückmeldesystems während der Schweineschlachtung auf die Häufigkeit auftretender Schlachtkörperverunreinigungen","quality_controlled":"1","isi":"1","date_created":"2024-09-16T21:57:35Z","publication_identifier":{"issn":["0003-925X"]},"date_updated":"2025-06-25T13:10:35Z","volume":75,"publication_status":"published"}]