Animal Production Department, Faculty of Agriculture, Cairo University, Giza, 12613, Egypt.
Trop Anim Health Prod. 2024 Oct 3;56(8):326. doi: 10.1007/s11250-024-04157-x.
The current study was designed to investigate the effect of dried orange pulp inclusion (OP diet), natural zeolite addition (Z diet), or both (OPZ diet) compared to control (CON diet) on digestibility, growth performance, nitrogen utilization, blood biochemical, antioxidative status, and cecum microbiota of growing rabbits. Seventy-two V-line male rabbits (6 weeks old) were divided into 4 balanced experimental groups. Results showed that administration of dried orange pulp or zeolite especially the OPZ diet significantly improved nutrient digestibility and nutritive values. Rabbits fed the experimental diets (OP, Z, or OPZ) recorded significantly higher values of average daily gain, N-retention, and N-balance compared with those fed the CON diet. Data on blood biochemical, showed non-significant differences in globulin concentrations, and significant decreases in levels of cholesterol, LDL (low-density lipoproteins), triglycerides, and MDA (malondialdehyde) as an antioxidant biomarker with OP, Z, or OPZ diets. Moreover, the incorporation of orange pulp or zeolite in diets significantly decreased the cecal count of E. coli, with no significant difference in total bacterial count among the experimental groups. It could be concluded that a combination between dried orange pulp and natural zeolite in the diet can enhance the growth performance, antioxidant and health status of rabbits.
本研究旨在比较干橙渣（OP 日粮）、天然沸石添加（Z 日粮）或两者结合（OPZ 日粮）与对照（CON 日粮）对生长兔的消化率、生长性能、氮利用率、血液生化、抗氧化状态和盲肠微生物区系的影响。72 只 V 型雄性兔（6 周龄）分为 4 个平衡实验组。结果表明，添加干橙渣或沸石，特别是 OPZ 日粮，可显著提高养分消化率和营养价值。与 CON 日粮相比，饲喂实验日粮（OP、Z 或 OPZ）的兔子平均日增重、氮保留和氮平衡显著提高。血液生化数据显示，球蛋白浓度无显著差异，胆固醇、LDL（低密脂蛋白）、甘油三酯和 MDA（丙二醛）等抗氧化生物标志物水平显著降低，OP、Z 或 OPZ 日粮均可降低 MDA 水平。此外，日粮中添加橙渣或沸石可显著降低盲肠大肠杆菌计数，各组总细菌计数无显著差异。综上所述，日粮中添加干橙渣和天然沸石可提高兔子的生长性能、抗氧化和健康状况。
