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🥚 Scientific Feeding and Management of Laying Hens: Key to High Egg Production The success of egg farming depends heavily on scientific feeding and management. Whether you’re raising a few hundred birds or operating a large-scale farm, understanding ...

Smart Water Exchange Tips for Hot Seasons in Aquaculture As aquaculture continues to grow rapidly, the industry faces three pressing challenges: environmental deterioration, frequent disease outbreaks, and residual drugs in aquatic products. The use of probio...

🐄 Biosecurity and Animal Health: A Key to Successful Cattle Farming In modern cattle farming, animal health and biosecurity are more than just best practices—they are essential defenses against infectious diseases that can wipe out months of hard wor...

Special Topics On Swine Disease-Toxoplasmosis Overview: The causative agent of toxoplasmosis is Toxoplasma gondii, a protozoan parasite belonging to the genus Toxoplasma, commonly referred to as Toxoplasma. This parasite is a type of coccidian and is named fo...

Special Topics On Swine Disease– Sarcoptic Mange Overview:Swine sarcoptic mange is a chronic parasitic skin disease caused by Sarcoptes scabiei var. suis, a mite from the Sarcoptidae family, which parasitizes the skin of pigs. It poses a significant thr...

Overview:

Porcine Endemic Pneumonia is a chronic respiratory infectious disease in pigs. The causative agent is Mycoplasma hyopneumonia (also known as M. hyorhinis), and the primary clinical symptoms include coughing and dyspnea. The characteristic lesion is fusiform bronchopneumonia, with some lung lobules showing "meaty" consolidation. The infection mechanism involves Mycoplasma infecting the bronchial cilia, damaging them and causing a loss of the tracheal function to block pathogens. Secondary infections by other pathogens in the environment (e.g., Pasteurella, Actinobacillus pleuropneumonia, Salmonella, and viruses) lead to multi-factorial respiratory diseases. In acute cases, pulmonary edema and emphysema predominate; in subacute and chronic cases, "shrimp meat"-like consolidation of the lungs is observed. The disease has a high infection rate but low mortality, though it can cause growth retardation and reduce feed efficiency. In other words, it prolongs the time to market for pigs.