نتایج جستجو برای: antibiotic growth promoters

تعداد نتایج: 912673  

Journal: :journal of livestock science and technologies 2014
h. tavakkoli a. derakhshanfar s. salandari

chukar partridge raising is a profitable business. new feed additives of plant origin may be an alternative to antibiotic growth promoters. this study was carried out to determine the effect of different levels of pistacia atlantica oil on performance and pathological conditions in chukar partridge. one-day-old chukar partridge chicks were assigned to three dietary treatments of 40 birds each. ...

Journal: :iranian journal of applied animal science 2013
s. mahdavi a. zakeri a. nobakht

the aims of this study were the comparative study of probiotic, acidifier,antibiotic growth promoters and prebiotic on activity of humoral immune and performance parameters of broiler chickens.500 one day old male broilers (308 ross strain) were divided into 5 groups: a, b, c, d and e. each group with equal numbers of male included 4 replicates (25 chicks per replicate). group a was as control ...

Journal: :Journal of Antimicrobial Chemotherapy 2004

Journal: :The Journal of antimicrobial chemotherapy 2004
Peter Collignon

Sir, I was dismayed to see that Phillips et al. were defending what nearly all microbiologists know are grave abuses of antibiotics— their continuous use in feed as growth promoters and the needless widespread use of broad spectrum agents (fluoroquinolones). This is despite their acknowledgement that ‘the more an antibiotic is used, the more likely are resistant populations to develop’ and that...

Journal: :دامپزشکی 0
سیدوحید مرعشی سرایی دانشجوی کارشناسی ارشد گروه علوم دامی دانشکده کشاورزی، دانشگاه تربیت مدرس فرید شریعتمداری استاد گروه پرورش و تولید طیور دانشکده کشاورزی، دانشگاه تربیت مدرس محمدعلی علیزاده صدر دانش پور دانشجوی کارشناسی ارشد گروه علوم دامی دانشکده کشاورزی، دانشگاه تربیت مدرس محمد امیر کریمی ترشیزی استادیار گروه پرورش و تولید طیور دانشکده کشاورزی، دانشگاه تربیت مدرس

the present experiment was carried out to determine the effects of  antibiotic  growth promoters, blend of medicinal plants, prebiotic and organic acid on performance and nutrients apparent digestibility in a six week period, using one hundred ninety two one- day- old broiler chicks (cobb 500) on a randomized complete block design experiment with six treatments consisting of 4 replications and ...

Journal: :دامپزشکی 0
حجت ضیایی کارشناسی ارشد مرکز تحقیقات جهاد کشاورزی خراسان جنوبی مسلم باشتنی استادیار گروه علوم دامی دانشکده کشاورزی دانشگاه بیرجند محمد امیر کریمی ترشیزی استادیار گروه پرورش طیور دانشکده کشاورزی دانشگاه تربیت مدرس تهران حسین نعیمی پور کارشناس آموزشی گروه علوم دامی دانشکده کشاورزی دانشگاه بیرجند همایون فرهنگ فر دانشیار گروه علوم دامی دانشکده کشاورزی دانشگاه بیرجند

this experiment was conducted in order to determine the effects of different dietary growth promoters on growth performance and nutrient digestibility in male broiler chickens. a total of 360 male broiler chicks (day-old ross 308 strain) were distributed into a completely randomized design (crd) having 6 dietary treatments with four replicates and 15 birds in each replicate. experimental treatm...

Journal: :MSystems 2021

Antibiotic growth promoters (AGPs) are commonly used within poultry farming to increase muscle growth. Microbial composition in the gut is known be influenced by AGP use although exact AGP-induced changes remain unclear.

Journal: :پژوهش های علوم دامی ایران 0
عبدالمنصور طهماسبی کریم فلکیان غلامعلی مقدم اکبر تقی زاده جواد بیات کوهسار

an experiment was conducted to assess the influences of different growth promoters on performance, carcass characteristic and intestinal microflora of broiler. day-old broiler chicks from arian strain (384) were used in the completely randomized experimental design during 7-42 days of age. eight rations were formulated as a follow 1: control (without growth promoters); 2-control + formic acid (...

A. Derakhshanfar H. Tavakkoli S. Salandari

Chukar partridge raising is a profitable business. New feed additives of plant origin may be an alternative to antibiotic growth promoters. This study was carried out to determine the effect of different levels of Pistacia atlantica oil on performance and pathological conditions in chukar partridge. One-day-old chukar partridge chicks were assigned to three dietary treatments of 40 birds each. ...

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