عنوان
پدید آورنده
موضوع
رده
کتابخانه
محل استقرار
شماره کتابشناسی ملی
شماره
TL57198
زبان اثر
زبان متن نوشتاري يا گفتاري و مانند آن
انگلیسی
عنوان و نام پديدآور
عنوان اصلي
Fate and Dissemination of Salmonella Reading in Market-Age Turkeys at Processing Using Oral Gavage Challenge Model
نام عام مواد
[Thesis]
نام نخستين پديدآور
Ashcraft, Aaron
نام ساير پديدآوران
Hargis, Billy M.
وضعیت نشر و پخش و غیره
نام ناشر، پخش کننده و غيره
University of Arkansas
تاریخ نشرو بخش و غیره
2020
يادداشت کلی
متن يادداشت
35 p.
یادداشتهای مربوط به پایان نامه ها
جزئيات پايان نامه و نوع درجه آن
M.S.
کسي که مدرک را اعطا کرده
University of Arkansas
امتياز متن
2020
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
This study aimed to evaluate the fate and dissemination of Salmonella Reading (SR) in market-age turkeys using an oral gavage challenge model. One hundred twenty-eight-week-old commercial turkey hens were moved from commercial production to research facilities. Upon arrival, a combination of enrofloxacin, 10 mg/kg, and florfenicol, 20 mg/kg, were orally administered sequentially before comingled placement on fresh pine shavings. Turkeys were challenged with 108 cfu SR by oral gavage on days 4 and 7 post-placement. Subsets were subjected to simulated commercial processing on days 14 (n=40), 21 (n=40) and 28 (n=32) post-placement (corresponding to 10, 11, and 12 weeks of age). After scald and feather picking, samples of stifle joint, skin, trachea, crop, lung, liver, and spleen (L.S.), and ceca were aseptically sampled, enriched in tetrathionate broth, and streaked on XLT-4 agar for recovery and serotyping of SR colonies. SR could not be recovered from stifle joint 14 days P.I. Skin samples showed the highest incidence of SR recovery (80 %) 14 PI, followed by crop (75 %); LS (67.5 %); lungs (60 %); and ceca (57.5 %). The organ with the lowest percentage of SR recovery was the trachea with 40 % of positive samples (P < 0.01). At 21 days P.I., ceca samples showed the highest rate of positive samples followed by the crop, suggesting a fecal-oral infection that allows the colonization and systemic organ invasion of SR that persisted at 28 days P.I. While cecal samples were consistently positive for SR at all time points, recovery of SR from skin and trachea declined rapidly. While interventions to reduce foodborne pathogens such as Salmonella should target all parts of the supply chain, including slaughter and processing facilities, and upstream farm sources, public health agencies, and industry must take steps to provide more consumer education about food safety. The present work suggests that pulmonary tissue may be an unexpected source of turkey carcass and ground turkey contamination with this serovar at processing. If confirmed, new intervention steps to reduce cross contamination from lung tissue during evisceration may be needed.
اصطلاحهای موضوعی کنترل نشده
اصطلاح موضوعی
Animal diseases
اصطلاح موضوعی
Animal sciences
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )
مستند نام اشخاص تاييد نشده
Ashcraft, Aaron
نام شخص - ( مسئولیت معنوی درجه دوم )
مستند نام اشخاص تاييد نشده
Hargis, Billy M.
شناسه افزوده (تنالگان)
مستند نام تنالگان تاييد نشده
University of Arkansas
دسترسی و محل الکترونیکی
نام الکترونيکي
مطالعه متن کتاب وضعیت انتشار
فرمت انتشار
p
اطلاعات رکورد کتابشناسی
نوع ماده
[Thesis]
کد کاربرگه
276903
اطلاعات دسترسی رکورد
سطح دسترسي
a
تكميل شده
Y
