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Register a new userEvaluation of Maternal Immunity against Chicken Anemia Virus in Meat Type Chickens
تقييم المناعة الأمية لدجاج اللحم ضدَّ مرض فقر الدّم المعدي
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تُقيم هذه الدّراسة المناعة الأمية لمرض فقر الدّم المعدي عند صيصان دجاج اللحم . فقد تمّ تربية مجموعتين من صيصان دجاج اللحم بعمر يوم واحد ،أُخذت المجموعة الأولى من قطيع أمات محصن ضدَّ مرض فقر الدّم المعدي ، والمجموعة الثانية من أمات غير محصنة ضدَّ المرض . وتمَّ إجراء اختبار المقايسة المناعية المرتبط بالأنزيم (الاليزا) لقياس معيار الأضداد المناعية لمرض فقر الدّم المعدي لدى هذه الصيصان . جُمعت عينات الدّم من الصيصان كل خمسة أيام، بدءاً من اليوم الأول من العمر. وأظهرت نتائج الدراسة أن متوسط معيار الأضداد لصيصان المجموعة الأولى كان (3344)، في حين كان متوسط معيار الأضداد لصيصان المجموعة الثانية ( 4144) في اليوم الأول من العمر، وقد أظهرت النتائج أيضاً انخفاضاً في مستوى الأضداد خلال 15 يوماً، وقد أثبتت هذه الدراسة انتشار المرض في القطعان غير المحصنة.
This study evaluates the maternal immunity to chicken anemia virus in broiler chicks. Two groups, of only one day old chicks, have been breeding . The first group was obtained from a vaccinated breeder flock against chicken anemia virus .The second one was obtained from unvaccinated breeder flock against the same disease. Blood samples were collected from the chicks every five days starting from the first day of their birth. The test was performed enzyme –linked immunoassay (ELISA) to measure antibody titer for chicken anemia virus in these birds. The research results have shown that the average antibody levels for the first group was (3344) for the one day old chicks while (4144) for the second group. The results have also shown that there was a decrease in the average antibody levels during 15 days. This research has proved prevalence of disease in unvaccinated flock
References used
Al-NATOUR, M. Q؛WARD. L. A؛SAIF. Y. M؛STEWART. B؛ and KECK, L. D. Effect of different levels of maternally derived antibodies on protection against infectious bursal disease virus, Avian Dis, 48, 2004, 177–182
BALLAL, A؛ELHUSSEIN, A. M؛ and ABDELRAHIM, I. S. A. Serological survey of chicken infectious anemia virus in commercial chicken flocks in Khartoum StateSudan, J. of Anim, And Vet, Advances, 4(7), 2005, 666-667
Office international des epizooties world organis animal health. Manual of Standards for Diagnostic Tests and Vaccines-2008
OTAKI, Y؛NUNOYA,T؛ TAJIMA, M؛TAMADA, H؛ and NOMURA, Y. Isolation of chicken anaemia agent and Marek’s disease virus from chickens vaccinated with turkey herpesvirus and lesionsinduced in chicksbyinoculating both agents. Avian Pathol 16, 1987, 291—306
OTAKI, Y؛NUNOYA,T؛ TAJIMA, M؛ SAITO, K؛ and NOMURA, Y. Enhanced pathogenicity of chicken anemia agent by infectious bursal disease virus relating to the occurrence of Marek’s disease vaccination breaks. Jpn J Vet Sci, 51, 1989, 849- 852
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This research aims to assess and study the evolution of broiler breeding in Syrian
Arab Republic in general and in Syrian Coast and Lattakia Governorate particularly, in
period between 2003 – 2012, and account of production costs for all stages of
broiler
breeding according and analyze these costs, and economical evaluation of production
broiler by using some economic indicators, and clarifying the impact of crisis in Syria the
process of broiler breeding and production in Lattakia Governorate, by comparing the
prices and costs befor and after the crisis.The research shows the production efficiency for
table chicken breeding in Lattakia Governorate amounted to /1.85/ in year 2010, and /1.20/
in year 2014, while the economic efficiencyreached /1.72/ in year 2010, and /1.09/ in year
2014, the return of capital period was 1.3 years in 2010, then it became 9.8 years in 2014.
A reverse transcriptase-polymerase chain reaction (RT-PCR) technique was used
to detect infectious bronchitis virus (IBV) in the commercial broiler flocks in
Syria. 50 tissue samples were taken from tracheal tissue, trachea and kidney of
the broil
ers suspected of infectious bronchitis (IB) from different governorates
of Syria i.e. Latakia, Tartous, Hama and Damascus countryside. RNA was
extracted directly from the tissue samples and then RNA was converted to cDNA
by RT-PCR technology; PCR reaction and Nested PCR interaction were carried
out sequentially. The primers used in the RT-PCR reaction were selected from
the S1 gene (spike), where mutations of the virus genome were concentrated in
this region (the hypervariable region). Some positive samples (10) were injected
at an age of 9-11 days old SPFEE-specific pathogen free embryonated eggs
according to the methods adopted in virology. This research was carried out at
the laboratories of Latakia Research Center, General Commission for Scientific
Agricultural Research GCSAR, in cooperation with the PCR laboratory at the
Faculty of Veterinary Medicine in Hama. The results showed the existence of 37
positive case for RT-PCR (74%), and the infectious embryos showed clear and
characteristic anatomical lesions of the infectious bronchitis virus after 5-6 days
post injection, delayed and undeveloped fetal (dwarfism), fingertip entanglement
and hemorrhage compared with the negative control. The results also showed the
sensitivity and speed of the RT-PCR test in the detection of the IBV virus.
In this prospective study done in Syria from mars 2014 to
February 2015, Mean serum hemoglobin ,serum hematocrit,
serum ferritin, and the ratio of serum iron to total iron-binding
capacity were investigated in 100 children aged ( 2-11) years.
The
study aimed at assessing the extention of anemia in
giardiasis intestinalis in Syrians children.
This study included 502 children between 0,5-15 years old. They were all subjected to duodenal biobsy for several reasons, and underwent investigations; Hb, MCV, MCH, MCHC and RDW.
The prevalence of celiac disease among anemic children was higher
than nonanemic patients (36,04% vs 12,14%). The mean duration of compliance was higher in both anemic children and celiac patients than in comparing groups .The mean levels of Hb,MCV,MCH and MCHC were lower in celiac group, while RDW was higher. Anemia was the most common presentation of celiac disease and it was seen in 77% among celiac children, while failure to thrive was detected in 43% of celiac group. Clinicians should consider celiac disease as a possible cause of anemia in all subjects with unexplained or refractory anemia
This study were conducted on 450 samples of raw chicken meat
( 150 samples of thighs- 150 samples of breasts -150 samples of
wings ) were collected from retail marketin Hama city,to detect
contamination of staphylococcus.
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