Department of Animal Production, College of Food and Agriculture Sciences, King Saud University, Riyadh, 11451, Saudi Arabia.
Department of Animal Production, College of Food and Agriculture Sciences, King Saud University, Riyadh, 11451, Saudi Arabia.
Poult Sci. 2023 Oct;102(10):102943. doi: 10.1016/j.psj.2023.102943. Epub 2023 Jul 18.
Carcass characteristics, product quality, and the conversion of feed into meat with higher performance and feasibility are important determinants of the profitability and sustainability of any poultry enterprise. The objective of this study was to investigate the potential effect of Rumex nervosus leaf powder (RNLP) on carcass composition, small intestine dimensions, breast color quality, and economic feasibility of Ross broiler chickens. A total of 122 broilers were randomly distributed evenly among 4 treatments (0, 1, 3, and 5 g RNLP/ kg diet, n = 5 replicates per treatment, with 6 broilers per replicate: 3 ♀ and 3 ♂). Performance and economic data were collected in each replicate during the experiment. One male bird from each replication was examined for other criteria on d 34. Results showed that broilers fed 3 g of RNLP had a higher eviscerated carcass weight and dressing percentage (P < 0.05) than the control. The RNLP-fed broilers had higher weights and thicknesses in the duodenum and jejunum of up to 5 g and in the ileum and overall small intestine of up to 3 g. Broilers fed the lowest levels of RNLP had the highest revenue and net gain and the lowest cost-benefit ratio compared with those fed the highest levels of RNLP. The results indicate that the addition of RNLP has a positive effect on carcass processing, the intestinal measurements, and profitability ratios of the broilers. The 1 g RNLP/kg feed is the recommended dose to increase productivity and economic profitability ratios per kilogram of meat.
屠体特征、产品质量以及提高饲料性能和可行性以转化为更高质量的肉类，这些是任何家禽企业盈利能力和可持续性的重要决定因素。本研究的目的是研究藜叶粉（RNLP）对罗斯肉鸡屠体组成、小肠尺寸、胸肉颜色质量和经济可行性的潜在影响。总共 122 只肉鸡被随机均匀分配到 4 个处理组（0、1、3 和 5 g RNLP/kg 日粮，n = 5 个处理重复，每个处理重复有 6 只鸡：3 只♀和 3 只♂）。在实验期间，每个重复都收集了性能和经济数据。在第 34 天，每个重复中的 1 只雄性鸡被检查了其他标准。结果表明，饲粮中添加 3 g RNLP 的肉鸡的屠体去脏重和屠体率较高（P < 0.05）。RNLP 喂养的肉鸡的十二指肠和空肠重量和厚度最高可达 5 g，回肠和整个小肠最高可达 3 g。与饲粮中添加最高水平 RNLP 的肉鸡相比，饲粮中添加最低水平 RNLP 的肉鸡的收入和净利润最高，成本效益比最低。结果表明，添加 RNLP 对肉鸡的屠体加工、肠道测量和盈利能力比有积极影响。建议的添加剂量为 1 g RNLP/kg 饲料，以提高每公斤肉的生产力和经济盈利能力比。
