In domestic chickens, the provision of maternal care strongly influences the behavioural development of chicks. Mother hens play an important role in directing their chicks' behaviour and are able to buffer their chicks' response to stressors. Chicks imprint upon their mother, who is key in directing the chicks' behaviour and in allowing them to develop food preferences. Chicks reared by a moth...

The objective of this study was to compare the characteristics that define the quality of Woorimatdag (TM) (WM, a certified meat-type commercial Korea indigenous chicken breed) and a commercial broiler breed (Ross, CB). Two hundred WM and 200 CB chickens that were 1-d-old and mixed sex were obtained from a commercial hatchery and randomly assigned to floor pens (20 chickens per pen, 3.0×2.0 m) ...

This study was conducted to compare ileal digestibility of calcium, dry matter and ash, growth performance, gut characteristics, bone parameters and retention of calcium in broiler chickens fed diets containing different calcium sources. A total of 96 commercial Ross 308 broiler chickens were allocated to three experimental diets. The experimental diets included a diet containing inorganic calc...

Background: The specific antibody response against Newcastle disease virus (NDV) in the blood serum of chickens hatched from eggs exposed to low dose gamma-radiation was studied. Materials and methods: Two groups of eggs of commercial meat chicken lines were irradiated with the dose of 0.30 Gy 60Co gamma-rays before incubation and on the 19th day of incubation, respectively. The same num...

The aim of this study was to investigate the effect of commercial herbal and chemical medicines on growth performance, serum lipids, intestinal selected bacterial population and intestinal morphology of broiler chickens. In this study, 450 day-old female broiler chickens (Arian strain) were divided into 10 treatments with three replicates of 15 chicks per replicate. On day 14 of the experiment,...

Rice bran is one of the feed ingredients that cheap, easy to obtain and its availability does not compete with human needs. The nutritional content good enough be used as animal feed, especially native chickens, but rice has a very high crude fiber content. purpose Bran Fermentation Training Using EM4 for Village Chicken Feed help farmers provide cheap quality simple innovations through ferment...

As a multifunctional polypeptide, epidermal growth factor (EGF) increases performance or enhances resistance to diseases in commercial broilers under adverse conditions. In this study, recombinant Lactococcus lactis was established produce the secretory form of bioactive gEGF. The results vitro testing showed that gEGF promoted proliferation chicken embryo fibroblast cells. A total 63 5-day-old...

Two experimental approaches were used to investigate the immunological responses of chickens to a commercial killed Salmonella enteritidis (SE) vaccine. In the first, the effects of host age on antigen-specific proliferative responses and cytokine production were examined. Compared with non-vaccinated controls, 4-wk-old vaccinated chickens showed higher proliferation to SE LPS and flagella. The...

Nucleocapsid (N) protein of infectious bronchitis virus (IBV), one of the viral structural proteins, inducesstrong antibody response in natural infection. In this study, a simple, recombinant N protein-based dot-blottest was developed to serologically examine chicken serum samples for the presence of IBV antibody.Initially, 72 serum samples were tested for the presence of IBV antibody using a c...

The aim of this study was to estimate the prevalence of histopathological lesions in the different organs in relation to the commercial-type and the age of birds (i.e. broiler chickens and layers). During the period 1999-2010 a total of 189 cases was submitted to the Division of Animal Pathomorphology, Department of Pathology and Veterinary Diagnostics at WULS. Most cases were found in broiler ...