نتایج جستجو برای: layer chicken

تعداد نتایج: 319064  

Journal: :Histology and histopathology 1995
K Hiramatsu K Ohshima

The distribution of galanin-containing nervous elements in the chicken pancreas was investigated by use of immunohistochemical method. Galanin-immunoreactive nerve fibres formed a perivascular plexus and a dense network in the subepithelial layer of secretory ducts. The muscle layers of secretory ducts were also supplied with galanin-immunoreactive nerve fibres. The exocrine pancreas received a...

2014
Ikuo K. Suzuki Tatsumi Hirata

The six-layered neocortex is a unique characteristic of mammals and likely provides the neural basis of their sophisticated cognitive abilities. Although all mammalian species share the layered structure of the neocortex, the sauropsids exhibit an entirely different cytoarchitecture of the corresponding pallial region. Our previous gene expression study revealed that the chicken pallium possess...

2017
Md. Abdul Matin Md. Ariful Islam Mst. Minara Khatun

AIM This study was conducted for determination of the prevalence of colibacillosis in chicken in poultry farms in Mymensingh and Tangail districts. Isolation, identification, and antibiogram profile of Escherichia coli were also performed. MATERIALS AND METHODS A total of 25 chickens manifested clinical signs of colibacillosis were collected from five different poultry farms during natural ou...

2004
MUHARAM SAEPULLOH

SAEPULLOH, M and ROVIRA H.G. 2003. Isolation and identification of infectious laryngotracheitis virus from outbreaks at Lipa City, Batangas, Philippines. JITV 8(2): 122-134. Infectious laryngotracheitis (ILT) is an acute, highly contagious respiratory disease of poultry characterized by respiratory disorder such as coughing with blood exudate from the trachea. The disease is caused by Herpesvir...

Journal: :Journal of the South African Veterinary Association 2002
P D G Richards A Botha P A Richards

The organic component of the avian eggshell can be divided into 3 portions, the shell membranes, the matrix and the cuticle. These have been well characterised in the chicken but little has been published with regard to the ostrich (Struthio camelus). A number of recent studies have indicated that the cause of intra-shell embryonic deaths in the ostrich is similar to intra-shell embryonic death...

Journal: :Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie 2011
B J Mtileni F C Muchadeyi A Maiwashe E Groeneveld L F Groeneveld K Dzama S Weigend

In this study, we compare the level and distribution of genetic variation between South African conserved and village chicken populations using microsatellite markers. In addition, diversity in South African chickens was compared to that of a reference data set consisting of other African and purebred commercial lines. Three chicken populations Venda, Ovambo and Eastern Cape and four conserved ...

Journal: :iranian journal of applied animal science 2013
a. melesse m. alewi y. teklegiorgis

this study was conducted at beresa watershed district of guraghe administrative zone, the southern regional state of ethiopia to evaluate the on-farm reproductive and egg production performances of local kei and its f1 crosses with fayoumi and rhode island red (rir) chicken breeds under farmers’ management. the local kei paternal line was mated with maternal lines of fayoumi and rir chickens to...

2011
Ben Dorshorst Anna-Maja Molin Carl-Johan Rubin Anna M. Johansson Lina Strömstedt Manh-Hung Pham Chih-Feng Chen Finn Hallböök Chris Ashwell Leif Andersson

Dermal hyperpigmentation or Fibromelanosis (FM) is one of the few examples of skin pigmentation phenotypes in the chicken, where most other pigmentation variants influence feather color and patterning. The Silkie chicken is the most widespread and well-studied breed displaying this phenotype. The presence of the dominant FM allele results in extensive pigmentation of the dermal layer of skin an...

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