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Small-Scale Forestry最新文献

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From Within and Without: Gender, Agency and Sustainable Management of Non-Timber Forest Products in Two Indian States 从内部和外部看:印度两个邦非木材林产品的性别、机构和可持续管理
IF 1.5 3区 农林科学 Q2 FORESTRY Pub Date : 2022-11-05 DOI: 10.1007/s11842-022-09531-x
R. Jalonen, R. Ziegert, H. Lamers, N. Hegde
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引用次数: 1
The Effect of Gum Arabic Supplementation on Growth Performance, Blood Indicators, Immune Response, Cecal Microbiota, and the Duodenal Morphology of Broiler Chickens. 添加阿拉伯胶对肉鸡生长性能、血液指标、免疫反应、盲肠微生物群和十二指肠形态的影响
IF 2.7 3区 农林科学 Q2 FORESTRY Pub Date : 2022-10-17 DOI: 10.3390/ani12202809
Hani H Al-Baadani, Rashed A Alhotan, Abdulaziz A Al-Abdullatif, Ibrahim A Alhidary, Abdulrahman S Alharthi, Saud I Al-Mufarrej, Maged A Al-Garadi, Mohammed M Qaid, Ahmed A Al-Sagan, Khalid E Ibrahim, Mahmoud M Azzam

Gum Arabic (GA) belongs to the Fabaceae family and contains indigestible soluble fibers (80-85%) that could be fermented by commensal bacteria to enhance performance, immune response, and intestinal integrity. This study aimed to investigate the effects of GA on performance, serum biochemical indicators, microbiota, immune-related gene expression, and histological changes in chickens. Six GA levels (0.0, 0.12, 0.25, 0.5, 0.75, 1.0%) were allocated using a total of 432 1-day-old male chickens (12 replicates with 6 chickens each). Growth performance was evaluated on days 10 and 24 of age. Blood parameters, organ pH levels, and intestinal health were determined on day 10 of age. Results showed that GA at 0.12% increased weight gain and 0.12 to 1.0% decreased feed intake but was best in feed conversion ratio and production efficiency except for 1.0% on day 1-10 of age. There was an increase in the thymus weight at GA level 0.25 to 0.75%. GA decreased the pH value of the proventriculus (at 0.50 and 1.0%) as well as the duodenum and cecum (at 0.12 and 1.0%). Chickens fed GA between 0.25 to 1.0% had higher protein and HDL, but lower cholesterol, LDL, and creatinine. Globulin was increased at 0.50% GA, while glucose and triglycerides were decreased (at 0.25 and 0.75% GA, respectively). The immune-related gene expression was reduced, except for 0.25% GA, which increased IL-10. Furthermore, chickens fed GA (0.25 to 0.75%) had higher Lactobacillus spp. and lower Salmonella spp. and Escherichia coli. When chickens received GA, the villus length and length to crypt ratio were higher, which also improved the integrity of intestinal epithelial cells and early duodenal development. We conclude that using GA (0.25 to 0.75%) as a natural prebiotic positively affects the performance, microbiota, immune response, morphology, and gut health of post-hatched chickens. More studies are needed to determine the potential mechanism of GA on broiler chickens.

阿拉伯树胶(GA)属于豆科植物,含有难以消化的可溶性纤维(80-85%),可被共生菌发酵,从而提高鸡的生产性能、免疫反应和肠道完整性。本研究旨在探讨 GA 对鸡的生产性能、血清生化指标、微生物群、免疫相关基因表达和组织学变化的影响。本研究共使用了 432 只 1 日龄雄鸡(12 个重复,每个重复 6 只鸡),分配了六个 GA 水平(0.0%、0.12%、0.25%、0.5%、0.75%、1.0%)。第 10 天和第 24 天对生长性能进行评估。第 10 日龄测定血液参数、器官 pH 值和肠道健康状况。结果表明,0.12%的GA能提高增重,0.12%至1.0%的GA能降低采食量,但除了1.0%的GA在1-10日龄的饲料转化率和生产效率最好外,其他GA的饲料转化率和生产效率都最好。GA水平为0.25%至0.75%时,胸腺重量增加。GA 降低了胃窦(0.50% 和 1.0%)以及十二指肠和盲肠(0.12% 和 1.0%)的 pH 值。饲喂 0.25% 至 1.0% GA 的鸡蛋白质和高密度脂蛋白含量较高,但胆固醇、低密度脂蛋白和肌酐含量较低。0.50% GA 的球蛋白增加,而葡萄糖和甘油三酯降低(分别为 0.25% 和 0.75% GA)。免疫相关基因的表达量减少,只有 0.25% 的 GA 增加了 IL-10。此外,饲喂 GA(0.25% 至 0.75%)的鸡的乳酸杆菌属较高,沙门氏菌属和大肠杆菌较低。饲喂 GA 的鸡的绒毛长度和长度与隐窝的比率都较高,这也改善了肠上皮细胞的完整性和十二指肠的早期发育。我们的结论是,使用 GA(0.25% 至 0.75%)作为天然益生元对孵化后鸡的生产性能、微生物群、免疫反应、形态和肠道健康有积极影响。要确定 GA 对肉鸡的潜在作用机制,还需要进行更多的研究。
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引用次数: 0
Competition in a Mixed-Species Planting with Four Contrasting Tree Species 四种不同树种混合种植的竞争
IF 1.5 3区 农林科学 Q2 FORESTRY Pub Date : 2022-10-17 DOI: 10.1007/s11842-022-09532-w
J. Vanclay, N. Gregorio, J. Herbohn
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引用次数: 1
The Effect of Managers’ Personal Characteristics on the Performance of Community Forest Enterprises 经营者个人特征对社区林业企业绩效的影响
IF 1.5 3区 农林科学 Q2 FORESTRY Pub Date : 2022-10-17 DOI: 10.1007/s11842-022-09533-9
Meike Siegner, R. Kozak, R. Panwar
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引用次数: 0
Studies of Family Forest Owners in the USA: A Systematic Review of Literature from 2000 through 2019 美国家庭森林所有者研究:2000年至2019年文献的系统回顾
IF 1.5 3区 农林科学 Q2 FORESTRY Pub Date : 2022-10-06 DOI: 10.1007/s11842-022-09529-5
B. Butler, S. Butler, Kristin M. Floress
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引用次数: 1
Timber Provision on Soft Soils in Forests Providing Protection Against Natural Hazards: A Productivity and Cost Analysis Using the Koller 507 in the Horizontal Yarding Direction in Switzerland 保护森林免受自然灾害的软土木材供应:使用Koller 507在瑞士水平庭院方向上的生产力和成本分析
IF 1.5 3区 农林科学 Q2 FORESTRY Pub Date : 2022-09-18 DOI: 10.1007/s11842-022-09526-8
J. Schweier, Marc Werder, L. Bont
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引用次数: 3
Forest Owners’ Perspectives Concerning Non-Timber Forest Products, Everyman’s Rights, and Organic Certification of Forests in Eastern Finland 芬兰东部森林所有者对非用材林产品、普通人权利和森林有机认证的看法
IF 1.5 3区 农林科学 Q2 FORESTRY Pub Date : 2022-09-16 DOI: 10.1007/s11842-022-09528-6
Hanna Muttilainen, V. Hallikainen, J. Miina, Juha Vornanen, H. Vanhanen
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引用次数: 3
Timber Production Potential of Trees on Farmlands 农田树木的木材生产潜力
IF 1.5 3区 农林科学 Q2 FORESTRY Pub Date : 2022-09-08 DOI: 10.1007/s11842-022-09527-7
S. Suresh Ramanan, Ayyanadar Arunachalam, A. Handa
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引用次数: 0
Only a Noise? The Role of Non-governmental Organizations in the Policy Processes of a New Social Forestry Model in Indonesia 只是噪音?非政府组织在印度尼西亚新社会林业模式政策过程中的作用
IF 1.5 3区 农林科学 Q2 FORESTRY Pub Date : 2022-09-04 DOI: 10.1007/s11842-022-09525-9
S. Rahayu, D. Laraswati, D. Permadi, M. Sahide, A. Maryudi
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引用次数: 1
How financially viable is smallholder forestry? A case study with a high-value tropical forestry species 小农林业的经济可行性如何?以高价值热带森林树种为例
IF 1.5 3区 农林科学 Q2 FORESTRY Pub Date : 2022-08-10 DOI: 10.1007/s11842-022-09511-1
L. Ota, T. Page, Rexon Viranamangga, Toufau Kalsakau, J. Herbohn
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引用次数: 2
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Small-Scale Forestry
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