Effects of exposure to air pollution on the performance and some hematological and biochemical constituents of broilers and laying chickens
Abstract: The present investigation was designed to determine the adverse effects of air pollution on physiological and productive parameters of both broilers and laying hens. Two experiments were carried out in three different regions of Egypt (south of Cairo, north of Cairo and El-Kaluobia Governorate). The first experiment was conducted using one thousand and five hundreds, one week old Hubbard broiler chicks that was randomly distributed into three groups (500 birds per region) and each group was randomly subdivided into five replicates with 100 birds each. The birds of each region were followed up till 7 wks of age. Body weight (BW), body weight gain (BWG), feed intake (FI), feed conversion ratio(FCR), mortality rate (MR), relative liver weight (RL W), hemoglobin (Hb), RBC's count, Haematocrite (PCV), plasma total protein (TP), alkaline phosphatase (Alk.P) and liver enzymes (AST and ALT) were determined. The second experment was done using also one thousand and five hundreds, one-day old EI-Gimmizah laying hens that were randomly distributed into three groups (500 birds per region) and each group was randomly subdivided into five replicates with 100 chicks each. The birds in each region were followed up till 36 wks of age. The FI, FCR, produced egg number (EN), egg weight (EW), egg mass (EM), fertility (F) and hatchability (H) were determined through the first ninety days of age after sexual maturity.
The same biochemical measurements of the first experiment were also performed. The results showed that the worst effects of air pollution were observed in the South of Cairo, followed by North of Cairo and than ElKaluobia Governorate. The broiler's results revealed a decrease in BW, BWG and FI. while the FCR and MR were increased. The laying hen's results showed a decrease in FI and an increase in FCR and RLW as well as a reduction in F, H, EN, EW and EM. Blood parameters of both broilers and laying hens were decreased with excessive air pollution except liver enzymes (AST and AL T) which were increased.
Publication year 2008
Pages 34-49
Availability location معهد بحوث الانتاج الحيوانى-شارع نادى الصيد- الدقى- الجيزة
Availability number
Organization Name
serial title Egyptian Journal of Applied Science
ISSN 1110-1571
Author(s) from ARC
Agris Categories Animal physiology - Nutrition
AGROVOC
TERMS		 Air pollution. Broiler chickens. Layer chickens. Liver. Mortality. Performance testing.
Proposed Agrovoc productive parameters;physiological parameters;Haematocrite;liver enzymes;egg number;egg weight;egg mass;
Publication Type Journal
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