Evaluation of the Performance, Carcass Characteristics, and Blood Metabolites of Broilers in Conditions of Standard Diet, Modified Diet, and Heat Habituate with and Without Orgacid Supplementation

Subject Areas : Journal of Animal Biology

Zahra  Tahami ¹ (Department of Animal Sciences, Gorgan University of Agricultural Science and Natural Resources, Gorgan, Iran)
Seyed Mohammad  Hosseini ² (Department of Animal Sciences, Faculty of Agriculture, Natural Resources and Environment, University of Birjand, Birjand, Iran)

Received: 2022-07-30 Accepted : 2022-09-08 Published : 2023-05-22

Keywords: broilers, Heat Habituation, Modified Diet, Orgacid Supplement,

Abstract :

To investigate the effect of Orgasid supplementation under heat stress conditions along with standard and diluted diets on performance, carcass characteristics and blood metabolites of Ross 308 broiler chickens for 42 days. The experiment was conducted from the age of 10 days in the form of a completely randomized design with 6 treatments, 8 replications, and 10 chicken pieces per replication. The experimental treatments were: 1- Standard ration (control), 2- Diluted ration + Orgasid supplement, 3- Standard ration + heat stress conditions, 4- Standard ration + Orgacid supplement, and 5- Standard ration + Orgasid + stress conditions. Heat and 5- Diluted ration + Orgasid supplement + heat stress conditions. The results showed that the use of Orgasid supplement in the heat stress condition kept the feed consumption, weight gain, and feed conversion ratio within the standard range. The use of ergacid improved the carcass quality and the relative weight of the thigh compared to heat stress conditions. The use of ergacid in heat stress conditions led to an increase in the relative weight of the duodenum, jejunum, and ileum compared to no use. The use of orgacid under stress conditions caused an increase in the relative length of the ileum, while the relative length of the duodenum, and jejunum was not affected. The consumption of orgacid led to the preservation of the acidity of the scrotum, stratum corneum, duodenum and jejunum in the treatments that were under heat stress compared to the control treatment. According to these findings, it can be concluded that the use of orgacid supplement in the conditions of heat stress in diluted rations leads to the improvement of the health and condition of the digestive system, leading to the maintenance of the bird's performance in the standard range.

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