Livestock and poultry pollution
The environmental pollution caused by livestock and
poultry excreta on large-scale breeding farms is the
main source of pollution in the animal husbandry environment.
The main components are nitrogenous compounds, phosphorus,
crude fiber, certain drugs, etc. The contents of various
components are related to livestock and poultry breeds,
feeds, and With regard to feeding methods, etc., it will
pollute the air, water, and soil. Without effective treatment,
the farm emits a very unpleasant odor and seriously pollutes
the living environment of the surrounding residents.
Spread of the disease
There are more than 90 kinds of zoonotic communicable
diseases among communicable patients. The main carriers
of these infectious diseases are feces and excrement.
In terms of pigs, the parasite is most often transmitted
to humans. Anthrax, Brucellosis, and tuberculosis
infections are also common. In human-animal communicable
diseases, severe diseases pose a great threat to humans.
The free discharge of sewage from animal manure and
livestock product processing plants can easily cause
eutrophication of water bodies. These contaminants are
discharged directly into natural water bodies without
treatment, such as reservoirs, lakes, and paddy fields.
Aquatic organisms in the water, such as algae, get plenty
of nutrients such as nitrogen, phosphorus, and potassium
and immediately multiply, consume oxygen in the water,
threaten the fish to survive or even die in the pond.
Drug residues cause potential contamination of livestock
products and the environment. Due to the development of
large-scale and intensive animal husbandry, extensive use
of antibiotics and sulfa drugs has become the main method
for the control of livestock and poultry diseases. Due to
the lack of economic interests and people’s lack of
scientific knowledge, the phenomenon of drug abuse is
widespread, resulting in livestock and poultry products.
(including meat, egg, and milk) drug residues. These
products are transferred to the body through people's
food intake and affect their health. Such as chloramphenicol,
it mainly damages the human hematopoietic system, causing
anemia and even the occurrence of leukemia; DDT in organochlorine
drugs is strong and stable toxicity, through the organism can be
trace DDT enriched to a serious degree of cancer damage.