Veterinarski arhiv, Vol. 89 No. 5, 2019.
Pregledni rad
https://doi.org/10.24099/vet.arhiv.0396
Pulmonary hypertension syndrome in broiler chickens: a review
Avishek Biswas
; Avian Nutrition and Feed Technology Division, ICAR-Central Avian Research Institute, Izatnagar, India
Sažetak
ll as right ventricular hypertrophy, are collectively known as ascites syndrome of broilers. Ascites was first noticed as a problem in commercial poultry farms located at high altitude. There are four general factors in ascites fluid buildup, that is: vascular damage that allows capillaries to leak; blockage of the lymphatic system that prevents drainage; decreased plasma oncotic pressure, and increased vascular hydraulic pressure, which can be caused by several types of pathologies, including hepatic, cardiac or right atrioventricular and pulmonary hypertension. Most cases of these metabolic diseases seen in commercial poultry farm are due to pulmonary hypertension. Pulmonary hypertension originates from various causes such as: environmental causes i.e., altitude, cold stress and incubator environment; management causes i.e., feed management, the form of feed, dietary content etc.; developmental causes i.e. growth rate, oxygen requirement, organ size and capacity, hematological parameters. All these factors cause ascites syndrome by inducing hypoxia in commercial birds. Genetic selection has great potential to influence and end ascites syndrome. In the past, genetic selection tools were used for rapid growth, high meat yield and good feed conversion. However, genetic selection may have aggravated the ascites problem and now it is the best solution for eliminating this metabolic disorder. With the advent of molecular genetics research and the development of genetic markers, it is possible to determine the exact genetic basis of ascites; genetic markers may be used to eliminate ascites syndrome from modern commercial broilers.
Ključne riječi
metabolic disorder; pulmonary hypertension; ascites; genetic selection; broiler
Hrčak ID:
228644
URI
Datum izdavanja:
27.11.2019.
Posjeta: 1.890 *