نتایج جستجو برای: hyline chickens

تعداد نتایج: 22119  

2016
Qingqing Liu Hanyong Peng Xiufen Lu Martin J. Zuidhof Xing-Fang Li X. Chris Le

BACKGROUND Chicken meat has the highest per capita consumption among all meat types in North America. The practice of feeding 3-nitro-4-hydroxyphenylarsonic acid (Roxarsone, Rox) to chickens lasted for more than 60 years. However, the fate of Rox and arsenic metabolites remaining in chicken are poorly understood. OBJECTIVES We aimed to determine the elimination of Rox and metabolites from chi...

ژورنال: علوم آب و خاک 2007
حسن کرمانشاهی, , میر داریوش شکوری, ,

In order to study the effect of corn, Ghods wheat, Falaat wheat, and triticale with or without enzyme addition on perormance and digestive tract characteristics, an experiment was carried out by using 288 male broiler chickens in a compeletly randomized design with 4*2 factorial arrangement for 57 days. Enzyme addition significantly decreased both feed conversion ratio of chickens fed Ghods whe...

Journal: :Jurnal Ilmu-ilmu peternakan 2023

Theaim of this research was to evaluatethe effect the addition bio-herbal as a feed additive on consumption,hen day production, egg ratioand mortality laying hens. The materialsin experiment used200 hens Hyline strainage 28to 36 weeks (reared for 60 days). method used in study an invivoexperimental using Completely Randomized Design (CRD) with treatmentsconsisting P0 = drinking water without bi...

2012
Hiroki Furuta

Chicken primordial germ cells (PGCs) are used to restore and conserve genetic resources of some endangered birds or flocks of domestic chickens. When PGCs are transferred from a donor to a recipient, they can survive and gain sexual maturity in the recipient chicken. This indicates that PGCs retaining exogenous genes can proliferate and develop in recipient gonads, and proves that transferred P...

Journal: :Revue scientifique et technique 1992
S C Tewari E A Aloba D R Nawathe

An examination of 200 serum samples from unvaccinated indigenous (local) chickens in Maiduguri, Borno State (Nigeria) using the haemagglutination inhibition (HI) test showed 73 sera to be positive and 127 to be negative for antibodies against Newcastle disease virus. The highest antibody titre observed was 1:128. The prevalence rate was higher (46.9%) in adult chickens than in young chickens of...

2016

The most prevalent diseases in country poultry industry that will infect broiler chickens epidemic; be disrupts the liver function. The liver is an important diagnostic organ in broilers is raised and on the other hand, Because of speed up the metabolism in broiler chickens in order to increase production and efficiency, The liver is an important center involved in the metabolism, and the impor...

Journal: :Poultry science 2014
Narayan C Paul Salma Al-Adwani Rocio Crespo Devendra H Shah

Campylobacter jejuni is a leading cause of foodborne bacterial gastroenteritis in human. Chickens are the reservoir host of C. jejuni, and contaminated chicken meat is an important source of human infection. Therefore, control of C. jejuni in chickens can have direct effect on human health. In this study we tested the passive immunotherapeutic efficacy of the chicken egg-yolk-derived antibodies...

2016
Yongping Yan

Avian infectious bronchitis virus (IBV) causes high mortality and reduced production even in vaccinated birds. The study hypothesis was that a decoction of a Chinese herbal medicine, modified Ma Xing Shi Gan Tang, in the drinking water would reduce mortality and improve recovery and antioxidant capabilities in chickens infected with IBV. Two hundred 15-day-old chickens were randomly divided int...

2018
Jie Liu Ranran Liu Jie Wang Yonghong Zhang Siyuan Xing Maiqing Zheng Huanxian Cui Qinghe Li Peng Li Xiaoyan Cui Wei Li Guiping Zhao Jie Wen

Improving feed efficiency is a major goal in poultry production to reduce production costs and increase profitability. The genomic variants and possible molecular mechanisms responsible for residual feed intake (RFI) in chickens, however, remain poorly understood. In this study, using both local and commercial breeds, genome re-sequencing of low RFI and high RFI chickens was performed to elucid...

Journal: :Developmental Immunology 1992
Suzan H. M. Jeurissen Marga E. Janse Dirk J. van Roozelaar Guus Koch Gerben F. de Boer

To investigate the age-dependent mechanism of susceptibility for chicken anemia virus (CAV) infection, we inoculated embryos and chickens of ages between day 9 of embryonic development and day 28 after hatching with CAV. Chicken embryos inoculated at days 9 and 11 of development showed no CAV-infected cells in the thymus, nor in other lymphoid organs. Many CAV-infected cells were detected in th...

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