Lead Exposure from Backyard Chicken Eggs: A Public Health Risk?

Bautista, Adrienne C.; Puschner, Birgit; Poppenga, Robert H.

doi:10.1007/s13181-014-0409-0

Cited by 28 publications

(16 citation statements)

References 18 publications

(24 reference statements)

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“…These findings might indicate the hens obtained from raisers were probably already environmentally exposed to lead. These findings are particularly interesting and consistent with those reported in different countries like Nigeria, India, and the US [1,2,30,31,39,40]. Similarly, in a previous study conducted in Palestine, hen's blood samples were shown to contain detectable lead levels at baseline and before intentional exposure [29].…”

Section: Discussionsupporting

confidence: 87%

“…A total of 6 samples were analyzed. ns: not statistically significant, **: p-value < 0.01 levels significantly increased in the blood and other parts of hen eggs following intentionally or environmentally exposing hens to a source of lead [1,2,6,29,30]. This study showed clearly elevated lead levels in egg shell, albumen, and yolk samples.…”

Section: Discussionmentioning

confidence: 59%

“…In this pilot study, we obtained clinically normal mixedbreed adult egg laying hens (n = 18) from local raisers in the West Bank of Palestine. The sample size was informed by previous studies after considering the number of eggs that could be laid by each hen every day [6,30,31]. Hens were housed separately in cages in the poultry housing facility of the Faculty of Agriculture and Veterinary Medicine, An-Najah National University.…”

Section: Methodsmentioning

confidence: 99%

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Sub-chronic treatment with high doses of ascorbic acid reduces lead levels in hen eggs intentionally exposed to a concentrated source of lead: a pilot study

Shawahna

Zyoud

Yahia

et al. 2020

BMC Pharmacol Toxicol

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Background: Hen eggs contaminated with lead can be harmful to the health of children and adults. The objective of this pilot study was to investigate if sub-chronic treatment with ascorbic acid can reduce lead levels in the different parts of hen eggs after intentionally exposing the laying hens to a concentrated source of lead. Methods: Clinically normal mixed-breed egg laying hens (n = 18) were used in this pilot study. Hens were exposed to a concentrated source of lead (200 mg/kg body weight /day lead acetate) for 1 week. Subsequently, egg laying hens were either treated with sub-chronic doses of ascorbic acid (500 mg/kg body weight /day) or left untreated for 4 weeks. Lead levels were assessed in eggshell , egg-albumen, and egg-yolk samples using a graphite furnace atomic absorption spectrophotometer. Results: Lead levels increased significantly (p-value < 0.01) from baseline in egg-yolk, egg-albumen, and eggshell samples following 1 week exposure to lead acetate. Sub-chronic treatment of egg laying hens with high doses of ascorbic acid could bring statistically significant reduction (p-value < 0.01) in lead levels in egg-yolk, egg-albumen, and eggshell samples after intentional exposure to a concentrated source of lead. Conclusions: Findings of this pilot study showed that sub-chronic treatment of egg laying hens with ascorbic acid can reduce lead levels in different egg parts after intentional exposure to a concentrated source of lead. Supplementing feedstuffs and water with sources of ascorbic acid could be beneficial in reducing lead levels in hen egg tissues following environmental exposure. Further studies are still required to investigate if ascorbic acid can reduce lead levels in other chicken tissues.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 59%

Section: Methodsmentioning

confidence: 99%

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Sub-chronic treatment with high doses of ascorbic acid reduces lead levels in hen eggs intentionally exposed to a concentrated source of lead: a pilot study

Shawahna

Zyoud

Yahia

et al. 2020

BMC Pharmacol Toxicol

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“…However, the birds were excreting the lead through the eggs. The edible portion of the eggs contained lead levels as high as 0.97 µg/g (Bautista et al, 2014).…”

Section: Toxicosismentioning

confidence: 99%

Biosecurity Strategies for Backyard Poultry: A Controlled Way for Safe Food Production

Samanta

Joardar

Das

2018

Food Control and Biosecurity

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“…As a result, a number of different measures have been undertaken to lower our exposure, such as its removal from petrol, paint and plumbing. Nevertheless, there are still a number of issues with the previous usage of Pb resulting in a legacy of widespread contamination [29]. Present day Pb blood levels are still between 50 to 200 times greater than the blood Pb concentrations of preindustrial humans at about 0.8 nM (0.016 μg/dL) [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

The voltammetric behaviour of lead at a hand drawn pencil electrode and its trace determination in water by stripping voltammetry

Honeychurch

2015

Anal. Methods

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Lead Exposure from Backyard Chicken Eggs: A Public Health Risk?

Cited by 28 publications

References 18 publications

Sub-chronic treatment with high doses of ascorbic acid reduces lead levels in hen eggs intentionally exposed to a concentrated source of lead: a pilot study

Sub-chronic treatment with high doses of ascorbic acid reduces lead levels in hen eggs intentionally exposed to a concentrated source of lead: a pilot study

Biosecurity Strategies for Backyard Poultry: A Controlled Way for Safe Food Production

The voltammetric behaviour of lead at a hand drawn pencil electrode and its trace determination in water by stripping voltammetry

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