VetInsight Pakistan

Introduction ​Infectious Laryngotracheitis (ILT) is a viral respiratory infection of chickens caused by the Gallid alphaherpesvirus 1 . The infection is characterized by severe breathing difficulties in infected birds. For poultry stakeholders, the outbreak of this disease in a farm means not only the death of birds but also the contamination of the environment. ​Transmission and Latency ​The mode of transmission of the virus: The virus is spread through respiratory secretions/droplets. ​The "Carrier" Problem: One of the most unique features of this virus is that recovered birds can act as subclinical carriers . The virus remains "hidden" in the nervous system of recovered birds. During stressful periods, the virus re-emerges in these birds, infecting other healthy flocks of birds. ​The "Pump-Handle" Breathing: The most evident signs of the infection: ​Gasping & Dyspnea: The infected birds stretch their necks forward and upward to take in air. ​Blood-S...

https://vetinsightpak.blogspot.com/2026/03/infectious-bursal-disease-ibd-in.html  1. Introduction In the first week of life, a chick is like to shape its final market weight. In this period, the chick grows from having an unripe immune system and poor thermoregulation into a strong and healthy bird. 2. Pre-Placement Preparation Cleaning and Disinfection:  Remove the pests from the living area using Virkon or Formalin ? Pre-heating:  Set the temperature of the shed to 32-34°C before the chickePre-heating 3. The Five Pillars of Brooding Temperature:  Chicks do not have the ability to control their body temperature. If they are very close to the heater, it means the temperature is low. If they are away from the heater, it means the temperature is high. Age of Chicks (Days) Target Shed Temperature (°C) Target Shed Temperature (°F) Target Relative Humidity (%) Day 0 - 3 33.0 – 34.0 °C 91.4 – 93.2 °F 60 – 70% Day 4 - 7 31.0 – 32.0 °C ...

 Introduction Infectious Bursal Disease (IBD), also known as Gumboro Disease , is a highly transmissible viral infection that mainly affects young chickens. It is brought about by the Infectious Bursal Disease Virus (IBDV), which belongs to the Birnaviridae family . IBD, which is a virulent issue for poultry farmers around the world, was documented to suppress the immune system extremely badly. This would result in secondary infections and higher mortality rates. The Target: Bursa of Fabricius The virus has a special preference for the Bursa of Fabricius . It is a primary lymphoid organ in birds that are still young. This organ is responsible for the B-lymphocyte development and production of immune cells. Immune Suppression:  By wiping out the bursa, the virus jeopardizes the chicken's normal function to produce antibodies. Vaccine Failure:  Birds infected with IBD, in general, are not able to compensate for other necessary vaccines such as Newcastle Disease (ND) or Avia...