With the rapid development of social economy, livestock and poultry farming scale intensification has become a development trend. However, the feces and urine discharged from large-scale livestock and poultry farms and the resulting ammonia, hydrogen sulfide and other harmful gases are not conducive to the normal growth and production performance of livestock and poultry, and there is a certain threat to the living environment and even health of the staff and the surrounding residents, while also affecting the sustainable development of livestock and poultry farming.
Common toxic and harmful gases in farms
Ammonia (NH3): In livestock and poultry houses, ammonia mainly comes from a variety of nitrogenous compounds, mainly produced by bacteria and enzymes decomposing faeces, urine, bedding and feed residues.
Ammonia is strongly volatile and irritates the eyes and mucous membranes of the upper respiratory tract. Into the blood can be combined with haemoglobin to cause tissue hypoxia, high concentrations of ammonia poisoning of livestock and poultry, and even cause paralysis of the respiratory central nervous system of livestock and poultry and death.
Hydrogen sulphide (H2S): In the livestock and poultry house, hydrogen sulphide mainly comes from fresh manure, anaerobic degradation of organic matter containing sulphur. Livestock and poultry feeding high protein diets and poor digestion when hydrogen sulfide production is more.
Hydrogen sulfide is a colourless, volatile, rotten egg odour harmful gas, is a strong neurotoxin, mucous membranes have a strong irritating effect. Low concentrations of hydrogen sulphide have effects on the eyes, respiratory system and central nervous system.
Thiols: Thiols are a group of organic compounds that are structurally similar to alcohols and have an extremely strong odour. The lower alcohols have a strong and unpleasant odour, and the odour of ethanethiol is particularly pronounced.
Thiols act primarily on the central nervous system. Inhalation of vapour at low concentrations can cause headache and nausea, and high concentrations can cause respiratory paralysis and death. Vomiting, diarrhoea, protein, tubular and haematuria in the urine may occur in poisoned persons.
Faecal odour: Faecal odour, also known as methyl indole, has a strong odour and is produced by microbial fermentation of undigested tryptophan in feed.
Faecal odourant can cause acute pulmonary oedema and emphysema in cattle and sheep, etc., bringing great losses to farming.
Effects of toxic and harmful gases on livestock and poultry
1. Increase the probability of respiratory diseases;
2. Harmful gases can lead to decreased production performance, reduced immunity and induce respiratory diseases.
3. The level of concentration of harmful gases directly affects the lactation performance of cows, but also poses a threat to the health of field staff.
4. Poor ventilation of the barn in winter easily induces respiratory and skin diseases.
Farming gas environment safety solutions
Toxic and harmful gas detection and alarm device
Farmers can install ammonia detectors, hydrogen sulphide detectors, temperature and humidity transmitters, liquid level transmitters and other intelligent detectors in farms or manure collection tanks to monitor the concentration of ammonia, hydrogen sulphide, carbon monoxide and other toxic and harmful gases in the farm in real time. When the gas leakage concentration reaches or exceeds the preset value, the controller will issue sound and light alarm signals and control drive exhaust or other peripheral equipment action, effectively preventing the occurrence of disasters and accidents.
GC510 portable gas detector
Chisholm Electric GC510 portable gas detector has two kinds of pump suction type and probe gun type, which is convenient for users to choose. Built-in high-quality sensors, can work in -40 ℃ ~ 70 ℃ environment, real-time detection of toxic and harmful gas concentration in the farm.
The instrument shell is made of special high-strength ABS engineering plastics, sturdy and durable, shockproof and drop-resistant. It can be effectively waterproof, dustproof, anti-slip and explosion-proof.
