Wang Xianze, Li Guangquan, Wang Huiying, Liu Yi, Yang Yunzhou, Wang Cui, Gong Shaoming, He Daqian
Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Science, Shanghai, China.
Front Vet Sci. 2023 Jun 15;10:1210706. doi: 10.3389/fvets.2023.1210706. eCollection 2023.
The aim of this study was to investigate the effects of adding whole-plant ensiled corn stalks () to the diet of Holdorbagy geese on their growth performance, serum parameters, and cecal microbiota. Geese farming is an important agricultural practice, and optimizing their diet can contribute to better growth and health outcomes. However, there is limited research on the utilization of as a feed source for geese. Understanding the potential effects of on growth, blood parameters, and cecal microbiota can provide valuable insights into its feasibility and impact on geese farming practices.
A total of 144 six-week-old Holdorbagy geese were randomly assigned to one of three groups: a control group (0% ), a group fed 15% and 85% concentrated feed (15% ), and a group fed 30% and 70% concentrated feed (30% ). The trial period lasted for three weeks, during which the growth performance, serum parameters, and cecal microbiota were assessed.
The results revealed significant findings in different aspects. Firstly, the feed-to-gain ratio (F/G ratio) of the 15% group was significantly higher than that of the control group (<0.05), indicating potential challenges in feed efficiency. Additionally, the average daily feed intake (ADFI) of both the 15% and 30% groups was significantly higher than that of the control group (<0.05), suggesting increased appetite or palatability of the diet containing . In terms of serum parameters, the level of lactate dehydrogenase (LDH) in the 30% group was significantly lower than that in the control group (<0.05). Moreover, there was a tendency for increasing Fe levels and decreasing Zn levels with higher levels of supplementation, although the differences were not statistically significant (<0.05). Furthermore, the principal coordinate analysis showed significant differences in the composition of cecal microbiota among the three groups ( < 0.01). The observed_species, Shannon, and Pielou_e indices of the 30% group were significantly higher than those of the 0% and 15% groups (<0.05), while the Simpson index of the 15% group was significantly lower than that of the control group (<0.05).
The results indicate that the addition of to the geese diet has both positive and negative effects. The study suggests that can be a long-term stable feed source for geese, which can contribute to reducing feeding costs. However, it is important to monitor the amount of added as it can affect the absorption of Zn by geese. Supplementation of Zn in the diet might be necessary to meet the needs of geese. Notably, adding 30% to the diet can increase the richness, evenness, and diversity of the cecal microbiota, indicating potential benefits to gut health. In conclusion, this study highlights the potential of as a feed source for geese. It provides valuable insights into the effects of on growth performance, serum parameters, and cecal microbiota. These findings contribute to optimizing geese farming practices, improving feed utilization, and enhancing overall productivity and well-being of geese. Further research is needed to determine the optimal inclusion level of and to explore strategies for mitigating any negative effects.
本研究旨在探讨在霍尔道巴吉鹅日粮中添加全株青贮玉米秸秆对其生长性能、血清参数和盲肠微生物群的影响。养鹅是一项重要的农业活动，优化其日粮有助于实现更好的生长和健康结果。然而，关于将全株青贮玉米秸秆用作鹅饲料来源的研究有限。了解其对生长、血液参数和盲肠微生物群的潜在影响可为其在养鹅实践中的可行性和影响提供有价值的见解。
将144只六周龄的霍尔道巴吉鹅随机分为三组：对照组（0%全株青贮玉米秸秆）、饲喂15%全株青贮玉米秸秆和85%浓缩饲料的组（15%组）、饲喂30%全株青贮玉米秸秆和70%浓缩饲料的组（30%组）。试验期持续三周，在此期间评估生长性能、血清参数和盲肠微生物群。
结果在不同方面显示出显著发现。首先，15%组的料重比（F/G比）显著高于对照组（P<0.05），表明饲料效率方面存在潜在挑战。此外，15%组和30%组的平均日采食量（ADFI）均显著高于对照组（P<0.05），表明含全株青贮玉米秸秆日粮的食欲或适口性有所提高。在血清参数方面，30%组的乳酸脱氢酶（LDH）水平显著低于对照组（P<0.05）。此外，随着全株青贮玉米秸秆添加水平的提高，铁水平有升高趋势，锌水平有降低趋势，尽管差异无统计学意义（P<0.05）。此外，主坐标分析表明三组之间盲肠微生物群的组成存在显著差异（P<0.01）。30%组的观察物种数、香农指数和皮洛均匀度指数均显著高于0%组和15%组（P<0.05），而15%组的辛普森指数显著低于对照组（P<0.05）。
结果表明，在鹅日粮中添加全株青贮玉米秸秆有积极和消极影响。该研究表明，全株青贮玉米秸秆可以成为鹅的长期稳定饲料来源，有助于降低饲养成本。然而，监测添加量很重要，因为它会影响鹅对锌的吸收。可能需要在日粮中补充锌以满足鹅的需求。值得注意的是，在日粮中添加30%全株青贮玉米秸秆可增加盲肠微生物群的丰富度、均匀度和多样性，表明对肠道健康有潜在益处。总之，本研究突出了全株青贮玉米秸秆作为鹅饲料来源的潜力。它为其对生长性能、血清参数和盲肠微生物群的影响提供了有价值的见解。这些发现有助于优化养鹅实践、提高饲料利用率并增强鹅的整体生产力和健康状况。需要进一步研究以确定全株青贮玉米秸秆的最佳添加水平并探索减轻任何负面影响的策略。
