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English :
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Breed differences and phenotypic correlations of antioxidant enzymes activities, some physiological parameters and productive traits of chicken
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Arabic :
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اختلافات انواع من الدجاج و معاملات الارتباط لنشاط الانزيمات المضادة للاكسدة و بعض المقاييس الفسيولوجية و الصفات الانتاجية
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| Abstract |
The present study was conducted at El Takamoly Poultry Project, Fayoum, Egypt during the period from January 2008 to February 2009.
Four thousand one day old chicks of chicken breeds: Dandarawi (Dan), Fayoumi (Fay), Sinai (Sin) and White Leghorn (WL) were used in this study. The objectives of the present study were determining the effects of breed and age on antioxidant enzymes activities [glutathione peroxidase (GPX), superoxide dismutase (SOD), and catalase (CAT)] of red blood cells haemolycate, some physiological and haematological parameters [hemoglobin (Hb), haematocrit (Ht), red blood cells count (RBCs), lymphocyte (LYMP), basophil (BASO), eosinophil (ESINO) and neutrophils (STAFF and SEGMENT) and some productive performance focus to eggshell quality in different chicken breeds (Fay, Dan and Sin as local breeds compare to WL as a hybrid foreign breed for egg production) under prevailing conditions of Egypt. Blood samples were collected at one day, at the age qf first egg (AFE) and at the period of the highest egg production (HEP) .
The main results were as follows: WL breed had significantly the highest GPX CAT and SOD activities while, Dan had the lowest activities and Sin and Fay were intermediated. Age influenced significantly the GPX, CAT and SOD activities. The highest values were detected in day-old chicks, decreased up to AFE and then increased until the period of HEP. Hb and Ht were significantly lower in WL chickens than other breeds. No breed-related differences in RBCs were found among the four breeds. RBCs were significantly increased at HEP compared to those at one day and AFE. Regarding to the interaction between breed and age, WL at the first day had the lowest RBCs count, while it had the highest value at HEP. WL had the highest LYMP, while Sin had the lowest value. WL had the highest ESINO count while Fay had the lowest count. Fay had the highest BASO count while Dan had the lowest count. Regarding to breed and age interaction effect, Fay at the first day had the highest BASO count, while Dan had the lowest count at the first day. Sin and WL breed had heavier body weight than Fay and Dan. Dan and Sin reached age at first egg earlier than Fay and WI. WL pullets produced the heaviest eggs whereas Dan chickens produced the lightest eggs. Eggs produced by WL and Dan had significantly highest shell%. WL as a hybridforeign breed for egg production had higher shell%, Haugh unit scores, specific gravity. shell weight per unit surface, egg surface area, egg shell volume than indigenous breeds while, indigenous breeds had higher yolk%, thicker shell thickness and higher yolk color score. In spite of the reproductive merit of local breeds, their productive efficiency still need improvement through applying a consistent and sustainable breeding program. In conclusion: Leghorn breed had superiority values for antioxidant enzymes activities of red blood cells haemolycate, some productive traits, haematological parameters. While, Dan had the lowest and Fay and Sin had intermediated values for previous parameters. A high variability of Dan breed directs a more attention conducted such breed. Variations in antioxidant enzymes activities, some physiological and haematological parameters in different chicken breeds during development suggest that they are genetically regulated. This finding indicates that these parameters are useful and important with potential use in breeding programs as early predictors for indirect selection or crosses which associated with disease resistance. performance traits and highly tolerance to oxidative stress.
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| Publication year |
2009
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| Pages |
623-644
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| Availability location |
معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى - الجيزة
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| Availability number |
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| Organization Name |
Animal Production Research Institute (APRI)
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| City |
الاسكندرية
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| serial title |
Egyptian Poultry Science
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| ISSN |
1110-5623
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| Author(s) from ARC |
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| External authors (outside ARC) |
جيهان شعبان فرحات
جامعة الفيوم
على عبد العظيم
جامعة الفيوم
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| Agris Categories |
Animal feedingAnimal physiology - Nutrition
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AGROVOC
TERMS |
Catalase.
Egg shell.
Eosinophilia.
Glutathione peroxidase.
Granulocytes.
Haematocrit.
Haemoglobin.
Lymphocytes.
Superoxide dismutase.
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| Proposed Agrovoc |
physiological parameters;phenotypic correlations;antioxidant enzymes;productive traits;red blood cells count;
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| Publication Type |
Journal
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