Appraisal of Dietary Prebiotic Supplementation on Meat Properties and Carcass Characteristics of Broiler Chickens After Experimental Infection with Eimeria Species

BACKGROUND: Prebiotics are non-digestible feed ingredients that improve the immune system. OBJECTIVES: The present study was designed to assess the changes caused by the addition of prebiotics to the feed on carcass characteristics and also chemical composition, physical characteristics, color, texture, and fatty acid profile of chicken pectoral muscles containing Eimeria species. METHODS: Forty-one-day-old male Ross ۳۰۸ broiler chickens were assigned to four treatments, including nega-tive control (NC), positive control (PC), positive medicated with coxidine (COX), and positive medicated with prebiotics (PRE). After ۴۲ days, carcass characteristics of the chickens were recorded, and also physical character-istics, chemical composition, color, texture, and fatty acid analysis of breast meat were determined. RESULTS: Infection with Eimeria species diminished carcass characteristics. PRE had higher final body weight, hot carcass weight, and breast and thigh muscle weights. Drip loss, pH, cooking loss, fat, ash, dry matter, and texture properties of broilers’ breast meat did not show any significant differences among the experimental groups. Dietary supplementation with prebiotics increased the crude protein content of breast meat. Infection with Eimeria species decreased the a-value of breast meat. Dietary supplementation with prebiotics decreased the amount of fatty acids ۱۶:۱ and ۱۸:۱ and monounsaturated fatty acids (MUFAs) compared to NC. CONCLUSIONS: Dietary supplementation with prebiotics is a promising strategy with the potential to compensate for the negative effects of infection with Eimeria spp. on carcass characteristics, protein content, and color of breast meat of broiler chickens.

کلیدواژه ها:

dietary fiber ، Eimeria species ، feed ، Meat analysis ، Poultry products