عنوان
پدید آورنده
موضوع
رده
کتابخانه
محل استقرار
شماره کتابشناسی ملی
شماره
TLpq2312801662
زبان اثر
زبان متن نوشتاري يا گفتاري و مانند آن
انگلیسی
عنوان و نام پديدآور
عنوان اصلي
Investigation of Microbiota in Health and Disease of Poultry
نام عام مواد
[Thesis]
نام نخستين پديدآور
Adhikari, Bishnu
نام ساير پديدآوران
Kwon, Young M.
وضعیت نشر و پخش و غیره
نام ناشر، پخش کننده و غيره
University of Arkansas
تاریخ نشرو بخش و غیره
2019
مشخصات ظاهری
نام خاص و کميت اثر
254
یادداشتهای مربوط به پایان نامه ها
جزئيات پايان نامه و نوع درجه آن
Ph.D.
کسي که مدرک را اعطا کرده
University of Arkansas
امتياز متن
2019
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
The microbiotas play vital roles in health and diseases of both humans and animals. 16S rRNA genes sequence analysis is one of the most popular and commonly used methods in the analysis of microbiotas associated with hosts. In this dissertation, the microbiotas of chickens (broilers, breeders, and layers) and turkeys were evaluated by 16S rRNA gene sequencing. Characterization of the culturable subpopulations of Lactobacillus in the chicken gut can serve as a valuable resource for probiotic development. In Chapter 2, Lactobacillus subpopulations recovered on MRS from chicken gut were defined comprehensively for the first time using 16S rRNA gene profiling, where they varied with different regions (cecum vs. ileum) and locations (lumen vs. mucosa) with in the same region. In Chapter 3, we investigated the effect of cell densities as determined by varying levels of sample dilution on the culture-enriched microbiota profiles using MRS agar medium as a model system. The dilution levels of original samples was found to alter the resulting culture-enriched microbiota profiles via unknown density-dependent mechanisms. In chapter 4, Bacillus isolates (B. subtilis and B. amyloliquefaciens) were used to evaluate their therapeutic and prophylactic effects against Salmonella Enteritidis, and found their potentialities to reduce S. Enteritidis colonization and improve the intestinal health in broiler chickens possibly through altering the composition and functions of gut microbiota. In chapter 5, we investigated the cecal microbiota and egg production in two strains of Hy-Line (Brown and W-36) housed in conventional cages (CC) and enriched colony cages (EC), and noticed differences in egg production and cecal microbiota between strains and housing types. In chapter 6, we performed a comprehensive survey of the litter microbiotas using booty swab samples in the 5 commercial turkey farms of the Northwest Arkansas. The litter microbiotas were found to differ between farms, and flocks which were further affected by the ages of turkeys. In Chapter 7, we developed and evaluated the nested TaqMan probe based qPCR assay for the quantitative detection of Clostridium septicum that targets the alpha toxin gene (csa).
موضوع (اسم عام یاعبارت اسمی عام)
موضوع مستند نشده
Animal sciences
موضوع مستند نشده
Genetics
موضوع مستند نشده
Microbiology
موضوع مستند نشده
Molecular biology
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )
مستند نام اشخاص تاييد نشده
Adhikari, Bishnu
مستند نام اشخاص تاييد نشده
Kwon, Young M.
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
