Dietary supplementation of probiotics in poultry exposed to heat stress – a review

Abstract

heat-related stress has become a serious problem in poultry industry along with the global temperatures rise. heat stress causes detrimental effects on physiology, immunology and microbiology resulting in abnormalities and impaired performances of birds. several nutritional strategies have been conducted to counteract the detrimental effects of heat stress in poultry, including dietary supplementation of probiotics. this strategy has been proposed to ameliorate the intestinal ecosystem, physiological conditions and immune system, leading to the improved performance and health of birds subjected to heat stress. This review presents the potential benefits of probiotics against heat stress in poultry from the viewpoint of intestinal microbial ecology, morphology and structure, physiological conditions, immune system and production performances. the possible mechanisms through which probiotics may give beneficial impacts on heat-stressed birds are also discussed along with the data reporting the possible drawbacks of using probiotics in heat-stressed poultry.

Effect of dietary supplementation with <i>Rhizopus oryzae</i> or <i>Chrysonilia crassa</i> on growth performance, blood profile, intestinal microbial population, and carcass traits in broilers exposed to heat stress

“…Our finding may therefore suggest that CAS and C. crassa were able to reverse the increased LDL level in HS broilers. The mechanisms through which CAS and C. crassa lowered the LDL level of HS birds are largely unknown, but antioxidants in CAS and probiotic and antioxidant properties in the fungus seemed to control corticosterone secretion (Sugiharto et al, 2016a) resulting in lowered LDL level in HS birds. Indeed, Yuan et al (2008) reported that plasma LDL as well as triglyceride increased with the increased level of corticosterone.…”

“…The HS has been attributed to the oxidative stress in broiler chicks (Sugiharto et al, 2016a). As a natural protective response against oxidative stress (Sohail et al, 2011;Akbarian et al, 2016), serum total antioxidants have been reported to be increased in HS birds (Sohail et al, 2011).…”

“…This tropical environment can be a life-threatening factor to broilers (reared in housing without temperature control equipment), as it can induce heat stress (HS). A recent study has revealed the detrimental effects of HS on physiology, immunology and microbiology resulting in abnormalities and impaired performances in birds (Sugiharto et al, 2016a). HS also decreases carcass yield and increases fat content in broiler chicks (Zeferino et al, 2016).…”

The Impact of Probiotics and Egg Yolk IgY on Behavior and Blood Parameters in a Broiler Immune Stress Model

“…Feed additives were able to fulfill this gap through interactions with gut microbiota and contributions to the health of the host (4). Using probiotics as feed additives can initiate resistance to bacterial colonization, and promote the host mucosal immunity for minimizing pathogen load (5).…”

Effect of decocted turmeric on performance, hematological parameters and carcass traits of broiler chickens

“…In such case, antioxidants is essential to protect the birds from oxidative damage (Sugiharto et al, 2017a). Broiler feeds available in the market have actually been supplemented with antioxidants.…”