Page 375 - Proceeding The 2nd International Seminar of Science and Technology : Accelerating Sustainable Innovation Towards Society 5.0

nd
he 2 International Seminar of Science and Technology
“Accelerating Sustainable innovation towards Society 5.0”
ISST 2022 FST UT 2022
Universitas Terbuka

1 INTRODUCTION
The health status of cattle is largely determined by the source of feed
and water of the environment. With the narrower land for cattle grazing
in Bali, many breeders allow cows to find food in landfills. The results
of research on cows kept in the final disposal site (TPA) of garbage in
Suwung, Denpasar City, found that there was heavy metal
contamination of lead in their blood and some of them were also
contaminated with cadmium (Cd) [1]. The same cases were also
reported in TPA Jatibarang Semarang [2] Surakarta [3] Deli Serdang
[4].
Lead heavy metal is extremely dangerous to animal and human
health. Lead heavy metal poisoning can generally cause brain
degeneration [5] and anaemia [6] and wasting of the liver
accompanied by intranuclear inclusion bodies in hepatocytes [7]. The
lead poisoning in ruminants causes symptoms of gastroenteritis,
anaemia, and encephalopathy [4]. Hepatotoxicity due to toxicity
originating from inorganic substances, can lead to decreased
immunity to infectious agents [8]. Cadmium heavy metal poisoning can
cause impaired kidney function [6].
The accumulative nature of lead heavy metals in body tissues is a
worrying factor because heavy metals in the body are difficult to
metabolize. Although there is a maximum threshold for lead content in
meat at 1.00 ppm [9], efforts to free cattle from lead heavy metal
contamination must be continued. This study aims to determine the
relationship between lead heavy metal contamination in cattle blood,
soil and drinking water, to further determine the role of cattle as
environmental bioindicators.
2 METHODOLOGY
A total of 270 cattle blood samples were used in this study including
soil and drinking water samples in the cattle area. The cattle, whose
blood is sampled, are selected based on the location of the farm in the
vicinity of the worst-predicted environment. Blood is drawn from the
jugular vein aseptically. The lead heavy metal content in blood, soil
and drinking water samples were measured by the atomic absorption

338 ISST 2022 – FST Universitas Terbuka, Indonesia
International Seminar of Science and Technology “Accelerating Sustainable
Towards Society 5.0