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العنوان
Studies on different methods for the control of salmonella microorganisms in broilers /
المؤلف
Abou Hatab, Mohamed Fadl ElSayed.
الموضوع
Broilers Chickens.
تاريخ النشر
2010.
عدد الصفحات
216 p. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
البيطري
تاريخ الإجازة
1/1/2010
مكان الإجازة
جامعة بنها - كلية الطب البيطري - department bacteriology,immunology and mycology
الفهرس
Only 14 pages are availabe for public view

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from 216

Abstract

7. Studies On Different Methods For the Control Of Salmonel Microorganisms in Broilers The obtained results can be summarized as follows:1.The rate of salmonella recovery from poultry was generally 4.82%. it was 1.74% from broiler parent, 1.81% from baby chicks and 3.2% from broilers apparently healthy but in recent dead it was 6.13% from broiler parent, 8.84% from baby chicks, 5.6% from broiler and 3.75% from carcasses at slaughter houses.2.The rate of salmonella recovery from hatching eggs was generally 3.58%. It was 3.2% from infertile eggs, 2.0% from fertile eggs and 6.57% from dead in shell eggs.<3. The rate of salmonella recovery from feed stuffs was generally 5.48%. it was 13.75%, 12.86%, 5.45%, 5.26%, 4.37% and 1.33% from fish meal, meat and bone meal, wheat bran, soybean meal, yellow corn and corn gluten respectively while all calcium carbonate samples were negative forsalmonella isolation.4.The rate of salmonella recovery from feed ration was 4% and 0.66% from mash feed ration and pelleted feed ration respectively.5.The rate of salmonella recovery from rate faeces samples collected from broiler breeder, broiler farms, hatcheries, slaughter houses and feed mill factories was generally 78%.6.The rate of salmonella recovery from litters was generally 30%. It was 24% from broiler breeder farms and 30% from broiler farms while all new litter samples were negative for salmonella isolation.7.The rate of salmonella serovars recovery from poultry and hatching eggs were S. typhimurium 29.76%, S. enteritidis 28.8%, S. gallinarum pullorum 25.95%, S. infantis 9.04%, S. cerro 3.09%, S. montevideo 2.14% and S. tennesse 1.19%.8.The rate of salmonella serovars recovery from feed stuffs, were S. typhimurium 24.44%, S. enteritidis 22.22%, S. gallinarum pullorum 17.77%, S. cerro 8.88%, S. montevideo 6.66% S. infantis and S. tennesse 4.44% each and untypable salmonella 11.11%.9.The rate of salmonella serovars recovery from feed rations were S. typhimurium 40%, S. enteritidis 30%, S. gallinarum pullorum 20% and S. montevideo 10%.10. The rate of salmonella serovars recovery from rat faeces were S. enteritidis 33.33%, S. typhimurium 30.7%, S. gallinarum pullorum 22.81% and S. infantis 13.16%.11.The rate of slamonella serovars recovery from poultry housed litters were S. typhimurium 30.76%, S. gallinarum pullorum 26.92%, S. enteritidis 23.07%, S. infantis 9.61%, S. Montevideo, S. tennesse 3.84% each and S. cerro 1.92%.The predominant serovars isolated from different samples collected in this study were S. typhimurium, S. enteritidis and S. gallinarum pullorum while the least ones were S. cerro and S. tennesse.12. The results of antibiogram of slamonella isolated serovars showed that the highest antibiotic susceptibility were for danofloxacin(97.88%),enrofloxacin(96.43%),neomycin(93.58%), flumequine(92.24%),chloramphenicol(92.15%),ampicillin(89.43%), colistin(88.58%) and oxytetracyclline(87.86%) while the highest antibiotic resistance were for trimethoprim- sulfamethoxazol.The more economic feed conversion rate, the highest European production index score, the lowest percent of salmonella shedding birds and the lowest salmonella caecal colony count/gm at 30 day of age were achieved by the combind use of Galliacid and Biomin.So the best combination choice for control of slamonella infections in broiler is Galliacid plus Biomin IMBO according to our results in this study.