Common Diseases Of Broiler
The life cycle of the broiler bird is very small. Normally marketable age broiler is 30 days. But some countries have been permitted for 45 days. the most common diseases of broiler are omphalitis, coccidiosis, Gout, Mycoplasmosis, Salmonellosis.
It is the most common disease at an early age, especially in chicks. Omphalitis is are also are known as navel infection, yolk sac infection, and many chicks disease.
Some veterinarians assumed that omphalitis is hatchery born disease. It is coming from hatchery due to a faulty incubation period or provides insufficient temperature after incubation.
It is a multifactorial disease in chicks due to more number of the infectious organisms are involved in omphalitis.
The primary clinical signs are chicks unable to stand up, prostration, off feed, dullness, pesty vent with yellowish or whitish feces.
Postmortem findings involved a large mass of egg yolk can easily see in the abdomen. The liver became smaller with a yellowish color.
Treatment involving temperature control associated with humidity inside the shed. The application of antibiotics depends on the types of infection implicated. Generally, all kinds of gram-negative bacteria but some Gram-positive bacteria responsible for the complications.
Therefore, the antibiotics act both types of bacteria are usually effective in this case. For instance, cephalexin @10mg/kg, florfenicol @20mg/kg, Neomycin sulfate 10mg/kg, Amikacin sulfate @10 mg/kg body weight significantly root out the infection
Escherichia coli infection
Escherichia coli infection also known as colibacillosis, coliseticemia, lichi heart disease, etc. It is gram-negative consulting, and the most present everywhere.
Primary clinical signs are respiratory difficulty this aisacculitis, off feed, fluffiness, etc.
Pericarditis & perihepatitis are the most common postmortem findings in e.coli infection.
Treatment is similar to omphalitis infection.
Coccidiosis caused by the Emeria app in poultry. There are nine species causing two types of coccidiosis in broiler chicken.
Intestine coccidiosis, which causes coccidial lesion both Small & large intestine in the broiler. Common clinical signs are retarded growth, feed spelling, off feed, excess poultry liter ingestion, decreased urate in feces of broiler birds.
In postmortem finding, the intestinal wall became thickened, convoluting, zig-zag duodenum are commonly seen.
It is called a metabolic disease of the broiler. It is commonly seen in the early winter season. Normally, avian gout mainly known as gout encounters at the early age of broiler birds.
In the field, Gout usually starts after one week & continue up to the 21-22 days in the broiler. Mortality varies types of gout in the internal organ of broiler birds.
The exact etiology & pathogenesis is unknown. But some veterinary researchers believe that there are two types of amino acids responsible for this disease.
The first one is, pyrimidine & the second one is the plain base. because the end product which caused gout in broiler called uric acid are originated from two types of amino acid.
Common clinical signs are sleeping death of chicks without a showing clinical sign. Prostration with excess nasal discharge,
In postmortem findings, chalky whitish substances found on the kidney, heart & liver.
Treatment of gout in broiler depends on identifying amino acids in the field. It is very easy to diagnose the types of amino acids. if the treatment response to allopurinol, the underlying source of uric acid from purine, while it is rather than pyrimidine origin.
In the case of pyrimidine origin, febuxostat works well compared to other drugs. therefore, the source of uric acid acts as a dominant role in curing the disease. for purine origin allopurinol and for the pyrimidine origin febuxostat.