Abstract
Abstract There is dearth information on the role of fisetin as an antistress agent in ameliorating heat stress in broiler chickens. Here, we experimentally compared probiotic, an antioxidant and antistress agent, with fisetin, an antioxidant agent with little or no report on its antistress effect. Sixty-day-old broiler chickens (Arbo Acre breed) were allotted into 4 groups of 15 birds each as follows; control, fisetin, probiotic, and fisetin + probiotic groups, respectively. All administrations were performed orally through gavage for the treatment groups. The environmental and cloacal temperature (CT) parameters were measured bi-hourly at Days 21, 28, and 35 from 7:00 to 7:00 hr, during the period of study. The environmental parameters exceeded the thermoneutral zone for broiler chickens. The probiotic-supplemented group had the least overall mean CT values all through the experimental period. Based on our findings, fisetin was not a potent antistress agent in mitigating heat stress in birds.
Highlights
The major factor that negatively affects broiler chickens production in the subtropics and tropics is heat stress (Aluwong et al, 2017; Goel et al, 2021; Sugiharto et al, 2017)
We hypothesized that supplementation of fisetin either alone or in combination with probiotic would be beneficial to ameliorate the negative effects of thermal stress in broiler chickens
The overall mean cloacal temperature (CT) values recorded at Day 28 of the study was evident that fisetin group showed no difference (41.36 Æ 0.04°C), whereas the coadministered group had a significant (41.23 Æ 0.03°C, p < .05) decrease when compared with the values obtained from the control group
Summary
The major factor that negatively affects broiler chickens production in the subtropics and tropics is heat stress (Aluwong et al, 2017; Goel et al, 2021; Sugiharto et al, 2017). The combined effects of high relative humidity (RH) and high ambient temperature (AT) have been reported to induce thermal stress in chickens (Egbuniwe et al, 2015; Jiang et al, 2020; Kim et al, 2021; Qaid et al, 2021), lipid peroxidation resulting from hyperthermia may damage some of their vital organs (Rhoads et al, 2013; Al-Zghoul & Saleh, 2020; Aksoy et al, 2021; Gogoi et al, 2021). Probiotics are live microorganisms that are beneficial when adequately administered to the host (Aluwong et al, 2013). They function as both antioxidant and antistress agents, and are gut effective (Sumanu et al, 2021)
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