| Partial pressure of carbon dioxide in the venous blood of young birds as a predictor of ascites susceptibility in broiler chickens. | |
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MedLine Citation:
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PMID: 20460221 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In order to investigate the relationship between carbon dioxide tensions in the venous blood of young chickens and ascites susceptibility, one hundred day-old chickens from two pure broiler breeder lines differing in susceptibility to ascites syndrome were obtained and reared at low environmental temperature. Weekly, blood samples were taken for the determination of blood gas parameters and plasma thyroid hormone levels. Dead birds were examined for lesions of ascites daily and all survived birds were autopsied at the end of the trials. In cold conditioning, the cumulative incidence of right ventricular hypertrophy (RVH) and ascites was 78% (39/50) in fast-growing (line A) and 50% (25/50) in slow-growing (line B) chickens, confirming that line A chickens had higher susceptibility to ascites than line B chickens. At 12 days of age, the mean pCO(2) tension was significantly (P < 0.01) higher in the venous blood of line A than line B chickens. During the experiment, the majority of line A and line B chickens showing RVH and ascites exhibited pCO(2) tensions equal to, or exceeding 50 mmHg at 12 days of age. Additionally, fast-growing chickens showed significantly lower plasma T3 and T4 concentrations than slow-growing chickens. In conclusion, our data indicate that carbon dioxide pressure in the venous blood of early postnatal broiler chickens could be used as a valuable predictor in the selection of birds susceptible to pulmonary hypertension and ascites. The function of thyroid hormones should also be taken into consideration in further selection procedures for meat-type chickens. |
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Authors:
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Mohammad Hassanzadeh; Mohammad Sadege Maddadi; Sarra Mirzaie; Keramat Assasie; Hamid Moayyedian |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Acta veterinaria Hungarica Volume: 58 ISSN: 0236-6290 ISO Abbreviation: Acta Vet. Hung. Publication Date: 2010 Jun |
Date Detail:
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Created Date: 2010-05-12 Completed Date: 2010-11-05 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8406376 Medline TA: Acta Vet Hung Country: Hungary |
Other Details:
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Languages: eng Pagination: 221-30 Citation Subset: IM |
Affiliation:
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University of Tehran, Department of Clinical Science, Faculty of Veterinary Medicine, P.O. Box 14155-6453, Tehran, Iran. Mhzadeh@ut.ac.ir |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aging Animals Ascites / blood, veterinary* Carbon Dioxide / blood* Chickens* Genetic Predisposition to Disease Partial Pressure Poultry Diseases / blood* |
| Chemical | |
Reg. No./Substance:
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124-38-9/Carbon Dioxide |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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