نتایج جستجو برای: one bird per pen was euthanized

تعداد نتایج: 5112246  

ژورنال: :مجله تحقیقات دامپزشکی (journal of veterinary research) 2008
محمد قلی نادعلیان امین متحدین تقی زهرایی صالحی شمس الملوک خواجه نصیری صمد لطف اله زاده

the clinical features of salmonellosis and prevalence of salmonella serogroups in calves were studied on one hundred and thirty two suspected calves in dairy farms around tehran. clinical examinations were carried out and the faecal or tissue (if calve was euthanized or dead) samples were collected for bacterial culture. the results were analyzed with chi-square statistical test. salmonella spp...

2015
S. S. Diarra

Three hundred 18 week-old Shaver Brown pullets (1,477.40±7.41 g) were allotted to 5 treatment groups containing 3 replicates of 20 pullets each. The treatments consisted of five feeding space allowances (FSA): 5.60, 8.40, 11.20, 14.00 and 16.80 cm/bird. Data were collected on feed consumption, weight change, egg production and feed conversion ratio (feed: dozen eggs) for a period of 20 weeks (1...

Journal: :Nigerian Journal of Animal Production 2021

The consequence of high stocking density in commercial production broiler chickens under the changing climate could predispose to adverse conditions. Therefore, this study was conducted investigate influence on rearing environment and performance chicken. Ninety (90) one day-old chicks Arbor acre breed were used as experimental units trial that lasted eight (8) weeks. bird randomly assigned thr...

Journal: :Poultry science 2009
A M L Coenen J Lankhaar J C Lowe D E F McKeegan

This study examined the welfare implications of euthanizing broilers with 3 gas mixtures relevant to the commercial application of controlled atmosphere stunning (CAS). Birds were implanted/equipped with electrodes to measure brain activity (electroencephalogram, EEG) and heart rate. These signals were recorded using a purpose-built telemetry-logging system, small enough to be worn by each bird...

In the present study, the potency and immunogenicity of the inactivated bivalent vaccine of Newcastle disease (ND) and avian influenza (AI) produced by Razi institute in Iran were compared with a similar imported vaccine administered by standard methods to specific-pathogen-free (SPF) chicken. A total of 150 twenty-one-day-old SPF chickens were used for evaluating Razi and imported inactivated ...

Journal: :Journal of Swine Health and Production 2023

Rope sampling methodologies were assessed for porcine reproductive and respiratory syndrome virus (PRRSV) detection in 6 pens. Results showed that shared ropes detected PRRSV 50% 66.7% of the time compared to unshared ropes. One rope provided better than 2 per pen under conditions this study.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده علوم انسانی 1393

learning-oriented assessment seeks to emphasise that a fundamental purpose of assessment should be to promote learning. it mirrors formative assessment and assessment for learning processes. it can be defined as actions undertaken by teachers and / or students, which provide feedback for the improvement of teaching and learning. it also contrasts with equally important measurement-focused appro...

2008
M. E. Corrigan E. R. Loe M. J. Quinn

One hundred eighty-one Boer-sired goat kids from dams of predominantly Spanish breeding (17.6 ± 2.34 kg initial BW; 177 wethers, 4 doelings) were used to determine optimum inclusion level of concentrate in diets fed to goats in confinement. Effects of elevated loafing areas on performance were also examined. Goats were blocked by weight (2 blocks per treatment) and randomly assigned to 1 of 12 ...

1985
Jim Gray Pete Homan Harald Sammer Bob Good Dieter Gawlick

transaction per second. contrasts the Several companies intend to provide general-purpose processing systems capable of one thousand transactions This paper surveys the need for such systems and approaches being taken by three different groups. This paper appears in the proceedings of IEEE COMPCON-85, held in San Francisco in February 1985.

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