Online Program

320288
Determination of heavy metals in selected tissues and organs of slaughtered cattle in Akinyele central abattoir, Ibadan, Nigeria


Monday, November 2, 2015

Oladapo Okareh, PhD, MPH, Dept. of Environmental Health Sciences, University of Ibadan, Ibadan, Nigeria, Ibadan, Nigeria
Oladipo Olatunbosun, DVM, MPH, Dept. of Environmental Health Sciences, University of Ibadan, Ibadan, Nigeria, Ibadan, Nigeria
Meat and offal from cattle are source of protein consumed daily but Consumers’ knowledge on the possible exposure to toxic heavy metals in meat and its associated health risk is generally low. This study aimed at assessing heavy metal levels in selected tissues and organs of slaughtered cattle.

Lead, cadmium and chromium in blood from jugular vein at slaughter, external abdominus muscles, liver apical lobes and kidney cortices of cattle slaughtered in Akinyele central abattoir, Ibadan, Nigeria were studied. Eighty samples were analyzed using Atomic Absorption Spectrophotometer (AAS). Statistical analysis was done using descriptive statistics, t-test and ANOVA.

Cadmium were found in 63 samples and lead in 17 samples. Mean chromium residual values in blood, muscle tissue, liver and kidney for cattle were (0.62±0.00, 0.62±0.00, 1.28±0.93 and 2.33±2.99 mg/kg). Chromium residues were higher in liver and kidney of the cattle. Cadmium values in blood, muscle tissue, liver and kidney of cattle were (5.67±2.08, 3.81±2.09, 5.24±2.30 and 5.71±2.31 mg/kg). These values were higher than WHO permissible limit of 0.5-1.0mg/kg. Mean lead residual values in blood, muscle, liver and kidney were within the permissible limits. There was significant difference (P<0.05) in cadmium, lead and chromium concentration based on tissue type and age.

The cattle meat contained levels of cadmium and chromium and this could pose health risk to consumers. Therefore, cattle should not be exposed to feeds or environmental discharges that are sources of cadmium and chromium, so as to reduce the associated health risks of cadmium and chromium bioaccumulation in meat.

Learning Areas:

Assessment of individual and community needs for health education
Basic medical science applied in public health
Environmental health sciences
Epidemiology
Occupational health and safety
Protection of the public in relation to communicable diseases including prevention or control

Learning Objectives:
Evaluate heavy metals concentration in selected tissues and organs of slaughtered cattle in Akinyele central abattoir, Ibadan, Nigeria. The learner will be well informed on the heavy metals bioaccumulation tendency of cattle and the associated health risks. This will help the learner to make wise and healthful choices in the consumption of cattle meat.

Keyword(s): Veterinary Public Health, Food Safety

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: I am qualified to be an abstract Author on the content I am responsible for because I was the Principal Investigator of this project. I was actively involved in this project with a view to contributing to knowledge.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.