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Comparison Of Heavy Metals Concentration In Chicken (Gallus Gallus Domesticus) Eggsfrom Poultry Farms And Backyard Raised Hens In Relation To Their Feed Intake

By: M.Shuaib Kabeer | Dr. Isbah Hameed.
Contributor(s): Dr. Saif ur Rehman Kashif | Dr. Zubair Farooq.
Material type: materialTypeLabelBookPublisher: 2017Description: 59p.Subject(s): Environmental SciencesDDC classification: 2905-T Dissertation note: Poultry eggs are most nutritious and important food stuff for human beings. It is easily digestible diet and the cheapest source of protein. It provides the most suitable nutrients and vitamin for the proper growth and maintenance of body tissues. Also, egg performs various functions while added in other several food products. Now a day Global Environment is being contaminated with different pollutants like Heavy metals, Dioxins, Poisonous gases etc. These pollutants also enter the food cycle and damage the food stuff. Poultry eggs might contain the elevated level of heavy metals, which generate from the various sources by natural and by man-made. Poultry is exposed by these metals by two main sources inhalation and feed (water and food) intake. When these contaminated eggs consumed by human beings they accumulate in their body and cause serious health effect. So, the purpose of this study was about to determine the concentration of heavy metals (Pb, Zn, Cr, Cu, Ni, Se, Mn) from poultry eggs. Samples of poultry eggs and their feed were collected from three different poultry farms and, also from three backyard raised hens, Lahore. Egg and feed Samples were digested by di-acid digestion method, 1 gram sample was taken in Kjeldha’s digestion tube and 7mL of HNO3 was added and after 30 min 3ml of HCLO4 was added. This solution was heated at 150 °C for 30 minutes on digestion block and then at 250 °C until wine green or water clear color end point.Then digested sample were analyzed under Atomic Absorption Spectrophotometer (AAS). After analyses result shows that lead, selenium and chromium concentration were higher than their permissible limits in both poultry farms and backyard raised hen eggs. And other metals manganese, nickel, zinc and copper were within permissible limits in both poultry farms and backyards.After comparison of egg sample from poultry farms and backyard raised hens, result shows that the metal concentration in egg samples collected from poultry farms were higher than the egg samples collected from backyards. Also, results showed that the higher amount of copper concentration in eggs contributed from higher intake of contaminated feed and water.
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Thesis Thesis UVAS Library
Thesis Section
Veterinary Science 2905-T (Browse shelf) Available 2905-T
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Poultry eggs are most nutritious and important food stuff for human beings. It is easily digestible diet and the cheapest source of protein. It provides the most suitable nutrients and vitamin for the proper growth and maintenance of body tissues. Also, egg performs various functions while added in other several food products. Now a day Global Environment is being contaminated with different pollutants like Heavy metals, Dioxins, Poisonous gases etc. These pollutants also enter the food cycle and damage the food stuff. Poultry eggs might contain the elevated level of heavy metals, which generate from the various sources by natural and by man-made. Poultry is exposed by these metals by two main sources inhalation and feed (water and food) intake. When these contaminated eggs consumed by human beings they accumulate in their body and cause serious health effect. So, the purpose of this study was about to determine the concentration of heavy metals (Pb, Zn, Cr, Cu, Ni, Se, Mn) from poultry eggs. Samples of poultry eggs and their feed were collected from three different poultry farms and, also from three backyard raised hens, Lahore. Egg and feed Samples were digested by di-acid digestion method, 1 gram sample was taken in Kjeldha’s digestion tube and 7mL of HNO3 was added and after 30 min 3ml of HCLO4 was added. This solution was heated at 150 °C for 30 minutes on digestion block and then at 250 °C until wine green or water clear color end point.Then digested sample were analyzed under Atomic Absorption Spectrophotometer (AAS). After analyses result shows that lead, selenium and chromium concentration were higher than their permissible limits in both poultry farms and backyard raised hen eggs. And other metals manganese, nickel, zinc and copper were within permissible limits in both poultry farms and backyards.After comparison of egg sample from poultry farms and backyard raised hens, result shows that the metal concentration in egg samples collected from poultry farms were higher than the egg samples collected from backyards. Also, results showed that the higher amount of copper concentration in eggs contributed from higher intake of contaminated feed and water.

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