نتایج جستجو برای: layer chicken

تعداد نتایج: 319064  

Akbarin, H, Bokaie, S, Fallah Mehrabadi , MH, Rabiee, MH, Sadrzadeh, A, Tehrani, F,

Background and Objectives: The commercial layer chicken farming is one of the most important sectors of the poultry industry. This study was conducted to evaluate the status of biosecurity of commercial layer chicken farms in 9 Iranian provinces with the highest layer chicken population.   Methods: In this cross-sectional study, 202 commercial layer chicken farms were selected from nine Irani...

Journal: :iranian journal of applied animal science 2014
m. kabir r.o. sulaiman r.k. idris s.b. abdu o.m. daudu

an experiment was conducted to determine the differences in body weight (bw), feed intake (fi) and some egg production traits of two strains of layer chickens (isa brown and nera black) and correlate the relationships between the tested traits. the study commenced when the layers were 26 weeks old and a total of 200 (100 of each strain) were used. sixty fresh eggs (30 from each strain) were col...

Excessive consumption of red meat is associated with various diseases including coronary heart diseases and cancer. Lower health-related problems of chicken meat, consumption of chicken meat, and mechanically deboned chicken meat (MDCM) have been increased due to their cheaper prices. Thereby, chemical, microbial, and physical causes of chicken meat losses and the safety aspects are needed to b...

Journal: :iranian journal of veterinary research 2008
a. mohammadi k. asasi m. masoudian b. bozorgchami

avian leukosis viruses (alvs) cause different types of tumours in poultry and can affect the health and egg production of the birds. to investigate the presence of the virus in chicken layer flocks in shiraz, 222 egg albumen from local layer breeder (25 eggs), local layer grand parent (30 eggs), broiler breeder (60 eggs), commercial layer (46 eggs) and broiler grand parent (61 eggs) were tested...

A. Mohammadi, B. Bozorgchami K. Asasi, M. Masoudian

Avian leukosis viruses (ALVS) cause different types of tumours in poultry and can affect the health and egg production of the birds. To investigate the presence of the virus in chicken layer flocks in Shiraz, 222 egg albumen from local layer breeder (25 eggs), local layer grand parent (30 eggs), broiler breeder (60 eggs), commercial layer (46 eggs) and broiler grand parent (61 eggs) were tested...

2017
Angela Bullanday Scott Mini Singh Jenny-Ann Toribio Marta Hernandez-Jover Belinda Barnes Kathryn Glass Barbara Moloney Amanda Lee Peter Groves

There are few published studies describing the unique management practices, farm design and housing characteristics of commercial meat chicken and layer farms in Australia. In particular, there has been a large expansion of free range poultry production in Australia in recent years, but limited information about this enterprise exists. This study aimed to describe features of Australian commerc...

Journal: :journal of arthropod-borne diseases 0
s rahbari department of parasitology, faculty of veterinary medicine, university of tehran, iran s nabian department of parasitology, faculty of veterinary medicine, university of tehran, iran h ronaghi department of parasitology, faculty of veterinary medicine, university of tehran, iran

background: blood sucking mites are important avian ectoparasites which being found on bird species worldwide. their presence are problematic for the producers either through potential direct effects on weight gain, egg produc­tion, sperm production in roosters or as nuisance pests on worker handle hens and eggs. the aim of this study was pointing out of the status of haematophagus mites. metho...

2017
Shimaa T. Omara Mahmoud F. Zawrah

Article history: Received on: 03/04/2017 Accepted on: 08/05/2017 Available online: 30/08/2017 The main objective of the present study is to find an appropriate in-vitro therapy to overcome clinically isolated antibiotic-resistant Salmonella and Shigella species from cases of layer poultry farms suffering from purulent dysentery and diarrhea. The present study demonstrated chemical synthesis of ...

Journal: :VETERINARY SCIENCE RESEARCH JOURNAL 2017

Journal: :Development (Cambridge, England). Supplement 1992
H Bortier L C Vakaet

The disposition of the Anlage fields of the neural plate and the intraembryonic mesoblast in the upper layer of the chicken blastoderm was studied at the primitive streak stage prior to the regression of Hensen's node (stages 5V to 6V, L. Vakaet (1970) Arch. Biol. 81, 387-426). Chicken blastoderms were cultured by New's technique on a mixture of thin egg white and agar. The anterior half of the...

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