The respiratory system in poultry is characterized by a unique structure that integrates specialized anterior and posterior components adapted to high metabolic demands. Air enters through the nostrils and nasal cavity, where initial filtration of particles and warming of the air take place. From there, it passes to the sinuses, which are particularly sensitive to bacterial and viral infections, and continues to the long trachea that ends in the larynx and the syrinx – the vocal organ unique to birds. This anterior structure is not only an entry point for air, but also a first line of defense against pathogenic particles, thanks to the cilia and mucus produced by specialized cells. From the syrinx, air flows into the rigid lungs and the air sacs – nine in total – which enable unidirectional airflow, so that gas exchange takes place continuously and efficiently. This mechanism ensures exceptionally high oxygen utilization, estimated at about 160% higher than in mammals, and supports the energy demands of rapid growth and flight.

The respiratory system is an open system exposed to contaminants; therefore, while the extensive surface area of the respiratory tract provides an advantage in the bird’s gas exchange capacity, it also constitutes a biological vulnerability.

To cope with this exposure, birds possess a natural defense system that includes: cilia in the trachea that remove particles, mucus production, and the presence of immune cells and antibodies throughout the respiratory system and lungs, responsible for eliminating invading pathogens.

Modern broiler-raising methods increase the risk of disease in general, and respiratory disease in particular. High exposure to dust, crowding, and additional stress factors constitute risk factors for damage to the respiratory system, making natural mechanisms insufficient. Breeders must therefore contend with outbreaks of various respiratory diseases.

In general, respiratory diseases are among the leading causes of mortality in poultry houses, and they are caused by viral pathogens (Newcastle disease, avian influenza, infectious bronchitis, laryngotracheitis, and others), bacterial agents (Mycoplasma, colibacillosis, cholera, and others), and fungal agents (aspergillosis).

In some cases, the primary pathogen weakens the immune system without causing mortality, but enables a secondary agent to proliferate and worsen the bird’s condition. Even vaccines administered to poultry can lead to secondary respiratory disease due to the formation of “plugs” in the trachea caused by the immune response. Common clinical signs of respiratory diseases include swollen eyes with discharge, blinking, rales, restlessness, reduced feed intake, and weakness.

In the absence of immediate treatment, high mortality is expected.

At the first sign of disease, prompt treatment of the flock is recommended. The conventional agents in use are mostly antibiotics. It should be noted that antibiotics are not intended for viral diseases, and even in bacterial infections, the response may not always be adequate due to the development of bacterial resistance. Therefore, accurate diagnosis and sensitivity testing by the attending veterinarian are essential.

The difficulty inherent in managing diseases after their onset has led the modern world to adopt a preventive approach.

Preventive treatment is generally more effective and economical than treatment during a disease outbreak.

A good preventive program will include:

1. 1. Improving management conditions and biosecurity on the farm (disinfection between hatches, maintaining hygiene, preventing visitor access, proper ventilation, etc.).
2. 2. An appropriate vaccination program, according to the recommendations of the attending veterinarian.
3. חיזוק המערכת החיסונית ותמיכה במערכת הנשימה ע”י תוספי מזון ייעודיים.

Bar-Magen offers a natural supplement containing carefully selected plant extracts designed to enhance immune resistance, support the respiratory system, promote rapid recovery, and improve growth performance.

Bronchimax is a plant-based formulation rich in active compounds. These active ingredients provide active protection: antiviral, antibacterial, antifungal, antiparasitic, and antiseptic effects, as well as immune system support that includes antioxidant activity, stimulation of white blood cell production and mobility, activation of T lymphocytes, and enhancement of phagocytosis. It also acts as an expectorant, reduces fever, increases respiratory activity, helps prevent coughing, and stimulates appetite.

Bronchimax helps reduce the use of therapeutic agents and antibiotics and does not require a withdrawal period before marketing.

Bar-Magen is a leading company in the fields of animal health and nutrition, with over 40 years of experience serving the agro-industrial sector in Israel.

Bar-Magen’s approach is based on a simple principle: combining scientific knowledge, innovative tools, and a deep understanding of on-the-ground needs.

The company collaborates with international manufacturers and brings advanced solutions to the local market for effective animal health management – from specialized nutritional supplements, through plant-based solutions, to advanced technological equipment.