CAECAL MICROBIOTA PROFILING IN BROILER CHICKENS FED WITH ANTIBIOTICS AND PROBIOTICS
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Date
2021
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Department of Animal Genetics & Breeding College of Veterinary Science and Animal Husbandry Anand Agricultural University, Anand
Abstract
The global poultry market is more promising than any other major agriculture
sector in terms of consumer and trade growth. The increasing demands of urban
markets have driven structural changes in poultry production and marketing. Globally,
more than 1 trillion eggs and 90 million tonnes of poultry meat are produced each
year to meet the demands of the growing population. Chickens are the most common
species and major contributor of poultry industry with a global population of 25.9
billion. Antibiotics and probiotics are common feed additives used in the poultry
industry for their efficient growth and may conflict with the gut microbiota.
Microbiota play a significant role by influencing gut physiology, nutrition, immune
responses, and protection against colonization of pathogens. Gut microbiota
development in broiler chicken starts immediately after hatching. Chicks begin
pecking and ingesting litter materials including adhered microorganisms found in
faeces and dirt, in this way microbes from other environments can be transmitted to
the gastrointestinal tract and may be a cause of infection. Therefore, the microbial
species in the gastrointestinal tract of chickens should be monitored for animal health
and food safety purposes.