The modern animal industry faces a persistent challenge: meeting growing
consumer demand for high-quality, low-cost food while maintaining stringent
standards of sanitation, health, and welfare. In recent decades, antibiotic-supplemented
diets have been widely adopted to maximize the growth potential of livestock.
However, alternative approaches have emerged, including the use of phytochemicals as
substitutes for antibiotics, to enhance avian productivity. Phytobiotics, which consist of
herbs and their derivatives, have numerous therapeutic effects and are available in
various forms. Recently, this type of feed manipulation has gained popularity in the
animal industry as an alternative to antibiotics, primarily because of the lack of adverse side effects and their ability to bolster the immune system and improve stress tolerance.
In addition to enhancing intestinal integrity and reducing gut damage, phytobiotics
promote increased feed intake by compensating for the nutritional demands of local
and systemic immune responses. Furthermore, they reduce the concentration of
pathogenic microflora in the gastrointestinal tract and mitigate the local inflammatory
responses. In poultry, these benefits are demonstrated by improved feed consumption,
increased digestive enzyme secretion, and enhanced immune function. Phytobiotics
exhibit a wide range of biological activities, including immunity-boosting,
antibacterial, antiviral, coccidiostatic, antiparasitic, anti-inflammatory, and antioxidant
properties. Herbs and their derivatives have been used since ancient times for their
health benefits and minimal side effects. However, recent studies have highlighted that
certain herbs and their metabolites may pose risks, raising concerns among consumers
regarding the safety of using these compounds as feed supplements or treatments. This
chapter explores the beneficial effects and latest developments related to phytobiotics
and highlights their practical applications and health advantages. Understanding these
features is essential for veterinarians, scientists, pharmacists, physiologists,
pharmaceutical industries, nutritionists, and animal breeders as they consider the use of
phytobiotics in modern animal husbandry.
Keywords: Essential oils, Herbs, Nutritionists, Phytobiotics, Reproductive performance.
