نتایج جستجو برای: chickens
تعداد نتایج: 22083 فیلتر نتایج به سال:
A 'meta-analysis' was performed to determine effects of post-hatch food and water deprivation (PHFWD) on chicken development, performance and welfare (including health). Two types of meta-analysis were performed on peer-reviewed scientific publications: a quantitative 'meta-analysis' (MA) and a qualitative analysis (QA). Previously reported effects of PHFWD were quantified in the MA, for variab...
The present paper explores amino acid composition of breast and thigh muscles of common pheasant and compares it with that in broiler chickens. The experimental feeding of both pheasant and broiler chickens proceeded for a period of 42 days at the identical conditions employing the same diet and rearing technology. Muscles were analysed for the content of following amino acids: Asp, Thr, Ser, G...
OBJECTIVE Our study provides information on phenotypes of local chickens and guinea fowl and their body measures as well as on major genes in local chickens in northern Ghana. METHODS Qualitative and morphometric traits were recorded on 788 local chickens and 394 guinea fowl in urban households in Tamale, Ghana. RESULTS The results showed considerable variation of color traits and numerous ...
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...
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...
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...
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...
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...
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...
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...
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