PDF(Pubmed)
Abstract：
The utilization of agro-industrial by-products, such as fruit residues, presents a promising strategy for providing alternative feed to ruminants amidst rising prices and limited availability of traditional roughage. In this study, we investigated the effects of Rosa roxburghii tratt residue, a local fruit residue in Guizhou province of China, on the growth, blood metabolites, rumen fermentation, and slaughter performance of Hu sheep. Ninety-six sheep were randomly divided into four groups, namely control, treatment 1, treatment 2, and treatment 3, and fed diets containing 0, 10, 20, and 30% Rosa roxburghii Tratt residue, respectively. Feeding varying levels of Rosa roxburghii Tratt residue showed no significant differences in dry matter intake, average daily gain, or the ratio of dry matter intake to average daily gain. However, sheep in the group fed with 30% Rosa roxburghii Tratt residue showed the highest gross profit. Plasma albumin content was lower in groups fed with Rosa roxburghii Tratt residue-containing diets compared to the control group (p < 0.05). Additionally, diet treatment 3 decreased plasma creatinine levels compared to control and treatment 1 (p < 0.05). Sheep in treatment 2 and treatment 3 exhibited higher plasma high-density lipoprotein level than control and treatment 1 (p < 0.05), as well as increased total cholesterol levels compared to control (p < 0.05). There were no significant differences in other plasma metabolites. Rumen pH, N-NH3, volatile fatty acids, and methane levels did not differ significantly among the four groups. However, feeding diets treatment 2 and treatment 3 resulted in decreased water holding capacity and increased shear force compared to control and treatment 1 (p < 0.05). Furthermore, pH, red chromaticity (a*), yellowness index (b*), and luminance (L*) were unaffected among the four groups of sheep. In conclusion, the inclusion of up to 30% Rosa roxburghii Tratt residue had no adverse effects on growth performance, allowing for feed cost savings without impacting rumen fermentation parameters. Rosa roxburghii tratt residue also showed benefits in improving plasma protein efficiency and enhancing lipid metabolism, albeit with limited effects on meat quality. Considering its affordability, Rosa roxburghii Tratt residue presents a practical choice for low-cost diets, ensuring economic returns.
摘要：
农业工业副产品的利用，如水果残留物，在价格上涨和传统粗饲料供应有限的情况下，为反刍动物提供替代饲料的策略。在这项研究中,我们研究了刺梨残留物的影响，中国贵州当地的水果残留物，关于增长，血液代谢产物,瘤胃发酵，和胡羊的屠宰性能。将96只绵羊随机分为四组，即控制，处理1，处理2和处理3，以及饲喂含有0，10，20和30％刺梨残留物的日粮，分别。饲喂不同水平的刺梨残留物在干物质摄入量方面没有显着差异，平均每日收益，或干物质摄入量与平均日增重的比率。然而,饲喂30％刺梨Tratt残留物的组中的绵羊显示出最高的毛利润。与对照组相比，饲喂含有刺梨残留物的饮食组的血浆白蛋白含量较低（p<0.05）。此外,与对照组和治疗1相比，饮食治疗3降低了血浆肌酐水平（p<0.05）。治疗2和治疗3的绵羊血浆高密度脂蛋白水平高于对照组和治疗1（p<0.05），以及总胆固醇水平与对照组相比增加（p<0.05）。其他血浆代谢物没有显著差异。瘤胃pH,N-NH3,挥发性脂肪酸,甲烷水平在四组之间没有显着差异。然而,与对照和处理1相比，饲喂饮食处理2和处理3导致持水能力降低和剪切力增加（p<0.05）。此外，pH值,红色色度（a*），黄度指数(b*)，在四组绵羊中，亮度（L*）不受影响。总之,包含高达30％的刺梨Tratt残留物对生长性能没有不利影响，允许在不影响瘤胃发酵参数的情况下节省饲料成本。刺梨残留物还显示出改善血浆蛋白效率和增强脂质代谢的益处，尽管对肉质的影响有限。考虑到它的承受能力，刺梨残留物是低成本饮食的实用选择，确保经济回报。
