Effect of Inclusion of Poultry Byproduct Meal and Roselle Seed Meal as Sources of Protein in Broiler Chicken Diets on Growth Performance Rates, Carcass Traits, Biochemical Blood Parameters, Tissue Antioxidants and Histopathology | ||
| Egyptian Journal of Veterinary Sciences | ||
| Articles in Press, Corrected Proof, Available Online from 24 November 2025 PDF (1.37 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejvs.2025.423255.3126 | ||
| Authors | ||
| Sarah Fahmy* ; Abeer Aziza; Abd El-Hady Orma; Rania Mahmoud; Tarek Mohamed | ||
| Department of Nutrition & Clinical Nutrition, Faculty of Veterinary Medicine, Mansoura University, Egypt | ||
| Abstract | ||
| This research was undertaken to identify the outcomes associated with the use of poultry byproduct meal (PBM) and roselle seed meal (RSM) in broiler chicks diets on performance parameters, carcass traits, blood indices, antioxidant enzyme activities and organs histopathology. Two hundred and seventy three (273) Cobb-500 broiler chicks, aged one day, were distributed randomly across seven dietary treatments with three replicates and provided with a corn-soybean meal based diet, including a control (no PBM or RSM), three PBM diets (5%, 10%, 15%), and three RSM diets (5%, 10%, 15%). On day 42, the results revealed that the inclusion of PBM and RSM up to 10% exerted no negative impact on growth performance, carcass characteristics or serum biochemistry. Higher inclusion level (15%) of either source significantly reduced body weight, body weight gain and feed efficiency. Although the groups fed 5% and 10% of PBM or RSM showed significant increases in both catalase and reduced glutathione levels compared to the control, 15% PBM and RSM groups showed no appreciable differences. Conversely, in reference to the control group, all PBM and RSM treated groups exhibited significant reductions in malondialdehyde concentration. Organs′ histopathology remained normal across groups, yet 15% PBM and RSM were linked to changes in villus morphology. It is recommended to include poultry byproduct meal and roselle seed meal in broiler diets at levels up to 10% as alternative protein sources without compromising performance or health. Inclusion above this level should be avoided due to detrimental effects on growth and physiological parameters. | ||
| Keywords | ||
| PBM; RSM; Growth performance; Antioxidants; Broiler | ||
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