نتایج جستجو برای: 13 birds per replicate pen

تعداد نتایج: 801106  

Journal: :علوم دامی ایران 0
سید عادل مفتخرزاده دانشجوی کارشناسی ارشد پردیس کشاورزی و منابع طبیعی دانشگاه تهران حسین مروج دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران محمود شیوازاد استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران

in this research the effect of feeding wheat/ barley based diets supplemented with three commercial enzymes containing xylanase and ?-glucanase activities and including matrix value their on performance and gastrointestinal tract size of broiler chicks was investigated. a total of 260-day-old male broiler chicks (ross 308) were allocated to 5 treatment groups, with 4 replicates per treatment an...

Journal: :iranian journal of applied animal science 2014
h. hashemipour h. kermanshahi a. golian a. raji

an experiment was conducted to study the effects of enzyme and phytogenic product (thymol+carvacrol) on the ileal microbial population and jejuna and ileal histomorphology of broilers fed wheat based diet. the experiment was conducted as a 2 × 3 factorial arrangement with 2 levels of enzyme endofeed w (0 and 0.05%) and 3 levels of next enhance 150® (0, 100 and 200 mg/kg). each of the 6 dietary ...

Journal: :Poultry science 2004
C A Kan G F Hartnell

We evaluated the nutritional value of broiler diets containing approximately 35% soybean meal from insect-protected soybean containing CrylAc protein, or from a similar nontransgenic control, or from 7 reference commercial soybean varieties. The feeding trial lasted 41 d, and each treatment consisted of 10 replicates of 1-d-old Ross 508 broilers (5 pens males and 5 pens females). Each pen conta...

Journal: :دامپزشکی 0
حمید حسینی فهرجی دانشجوی کارشناسی ارشد گرایش فیزیولوژی گروه علوم دامی دانشگاه ارومیه رامین نجفی عضو هیئت علمی گروه علوم دامی دانشگاه ارومیه

the aim of this study was to evaluate the effects of three lighting programs on immune system and performance of broiler chickens. a total of 288 seven day-old male broiler chicks (ross-308) were randomly distributed between three treatments. each group was housed in the separated room with eight pen and 12-birds per pen. the management conditions were similar for all treatments throughout the ...

2004
J. L. MacIsaac B. M. Rathgeber N. A. McKee R. J. Lien J. B. Hess S. F. Bilgili S. R. McKee

Lighting programs that provide longer daylength as a broiler ages reduce the incidence of ascites and sudden death syndrome. Birds given this type of program often have an increased incidence of carcass scratches due to increased bird activity. The turkey industry uses microwave technology to restrict claw growth and reduce carcass scratches. One concern is that the treatment may reduce bird gr...

Journal: :Poultry science 1999
D M Hooge K R Cummings J L McNaughton

During the period from January to June, combined-sex broiler chickens were inoculated with coccidia via drinking water at 14 d of age. In a completely randomized design (eight replicate pens; 88 chicks per pen) using built-up litter, experimental diets contained monensin plus 0.20% dietary sodium bicarbonate (SBC), which provided 0.054% sodium and 0.144% bicarbonate. Treatment with SBC signific...

F. Saemi M. R. Rezvani, N. Sayadpour

The present study was aimed at studying the effects of inclusion of pomegranate seed extract to fat-containing diets on nutrients digestibility, intestinal microflora and performance of broilers. A total of 320 one-day-old broiler chicks (Ross 308) were selected in a 2 × 2 × 2 factorial experiment in a completely randomized design with 4 replicates o...

Journal: :تولیدات دامی 0
داریوش خادمی شورمستی دانشجوی دکتری تخصصی، گروه پرورش و مدیریت طیور، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران، ایران فرید شریعتمداری استاد گروه پرورش و مدیریت طیور، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران، ایران محمد امیر کریمی ترشیزی استادیار، گروه پرورش و مدیریت طیور، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران، ایران هوشنگ لطف اللهیان استادیار پژوهشی، بخش تغذیه و فیزیولوژی، مؤسسۀ تحقیقات علوم دامی کشور، کرج، ایران

the present study was carried out to evaluate the effects of vegetable fat sources and additives on performance and morphological parameters of the small intestine of arain broiler chickens. birds were randomly used in a 2×3 factorial arrangement of dietary treatments included two fat sources (canola or pumpkin seed) and three additives (without additive, 0.1 g/kg probiotic and 0.15 g/kg virgin...

Journal: :Poultry science 2008
J L Grimes S Rahimi E Oviedo B W Sheldon F B O Santos

A study was conducted to determine 1) the effect of a dietary direct-fed microbial (DFM) on turkey poult performance, 2) the effect of a DFM on a Salmonella challenge, and 3) the effect of feed processing on the efficacy of the dietary DFM. Day-of-hatch Large White female poults were placed in 2 rooms in 2 Petersime batteries per room. Twelve pens of 7 birds each were used in each battery (24 p...

Journal: :Journal of applied life sciences international 2021

The study was conducted in poultry production unit of the Teaching and Research farm Department Animal Science, Faculty Agriculture, Usmanu Danfodiyo University to investigate effect graded levels kapok seed meal on broiler bird’s performance. A total 288 chickens were being used. randomly divided into four treatments groups (four experimental diets) T1 (control), T2 (0.5kg/100kg), T3 (1Kg/100k...

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