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Swapan Kumar Sarker Muhammad Nur-Un-Nabi Md.Mohasinul Haque Mahmuda Sharmin Sanjay Saha Sonet Sourav Das Niamjit Das 《林业研究》2015,(1):159-169
Juri is a biodiversity-rich primary forest in Bangladesh, which remains ecologically unexplored. We identified tree species and examined the richness, alpha(a)diversity and floristic similarity patterns within the identified communities. Vegetation and environmental data were sampled in 120(0.04 ha) study plots. Tree communities were delimited by two-way indicator species analysis(TWINSPAN). In total, 78 tree species of 35 families and58 genera were identified. TWINSPAN identified six tree communities: A—Tricalysia singularis; B—Kydia calycina-Castanopsis tribuloides; C—Polyalthia simiarum-Duabanga grandiflora; D—Ficus roxburghii; E—Artocarpus lacucha; F—Artocarpus lacucha. Mean richness, Shannon and Gini-Simpson indices were highest for the Polyalthia simiarum-Duabanga grandiflora community, while Ficus roxburghii showed lowest diversity. Significant differences(p = 0.05) in three diversity indices were recorded between Polyalthia simiarum-Duabanga grandiflora and Ficus roxburghii. Tree compositional similarity was greatest between Kydia calycina-Castanopsis tribuloides and Polyalthia simiarum-Duabanga grandiflora(0.712). 相似文献
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Small-scale Forestry - Tropical agroforestry systems have immense potential to sequester carbon both in aboveground and belowground biomass and soil. Homegarden agroforestry is a popular land-use... 相似文献
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E-octadec-7-en-5-ynoic acid from the roots of Capparis zeylanica 总被引：1，自引：0，他引：1
Haque ME Haque M Rahman MM Rahman MM Khondkar P Wahed MI Mossadik MA Gray AI Sarker SD 《Fitoterapia》2004,75(2):130-133
A new fatty acid, E-octadec-7-en-5-ynoic acid (1), has been isolated from chloroform extract of the roots of Capparis zeylanica. The structure of this compound was established primarily by 1D and 2D-NMR spectroscopy. 相似文献
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Objective
To compare the analgesic efficacy and suitability of an existing oral tramadol-based protocol with a transdermal fentanyl-based protocol following lateral thoracotomy in dogs.Study design
Prospective randomized clinical trial.Animals
A group of 16 healthy laboratory beagle dogs.Methods
Dogs were randomly allocated to one of two treatment groups: group F (intramuscular methadone 0.2 mg kg–1 and transdermal fentanyl 2.6 mg kg–1 both administered on discontinuation of anaesthesia, n = 8) or group T (intramuscular methadone 0.2 mg kg–1 on discontinuation of anaesthesia and again 4 hours later, followed by oral tramadol 12 mg kg–1 per 24 hours commencing 7 hours after discontinuation of anaesthesia, n = 8). Intercostal bupivacaine (0.5–1 mg kg–1) and subcutaneous carprofen (4 mg kg–1) were administered to all dogs at induction. Body weight (BW), presence of clinical signs, pain score, activity, heart rate (HR) and mean arterial pressure (MAP) were assessed for 72 hours postoperatively.Results
No significant differences were observed in BW change, presence of clinical signs or gross locomotor activity between groups. Pain scores were low at all times for all dogs, and rescue analgesia was not required. Dogs in group T exhibited higher pedometric activity (p = 0.006), HR (p < 0.001) and MAP (p < 0.001) than those in group F, in particular on night 1 following surgery. Least squared mean (LSM) pedometric activity was 1.81 and 1.02 jerks minute–1, LSM HR was 111.13 and 78.64 beats minute–1 and LSM MAP was 111.62 and 105.24 mmHg, respectively, in groups T and F.Conclusions and clinical relevance
Both regimes appear to provide adequate analgesia following lateral thoracotomy in dogs. Ease of administration of transdermal fentanyl compared to oral tramadol is advantageous. Reduced activity observed with the fentanyl regime was not associated with any adverse effects and may be desirable following some invasive surgeries. However, while transdermal fentanyl remains currently unavailable in the European Union, the oral tramadol-based regime provides an acceptable alternative. 相似文献6.
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Mahmuda Bilkis Bintee Alam Abdullah Ibne Omar Md.Omar Faruque David Russell Notter Kathiravan Periasamy Md.Motahar Hussain Mondal Md.Jalal Uddin Sarder Md.Shamsuddin Jianhua Cao Xiaoyong Du Zhenyang Wu Shuhong Zhao 《畜牧与生物技术杂志(英文版)》2019,(2)
Background: Haemonchosis is a major economic problem in goat production in humid, tropical and subtropical regions. The disease is caused by an abomasal nematode, Haemonchus contortus, which is highly pathogenic in small ruminants. The aim of this study was to identifying single-nucleotide polymorphisms(SNP) that were associated with fecal egg counts(FEC) and could be used as markers to identify resistance to H. contortus in goats.Results: Ten novel variants in the CI TA, ATP2 A3, HSPA8, STAT5 B, ESYT1, and SERPING1 genes were associated with FEC in goats with a nominal significance level of P 0.05. Two missense mutation in the exon region of the caprine CI TA gene resulted in replacement of arginine with cysteine at position 9473550(R9473550 C) and aspartic acid with glutamic acid at position 9473870(D9473870 E). Chinese goat breeds had significantly higher FEC than Bangladeshi goat breeds within their respective genotypes. Polymorphism information content(PIC), effective al ele number(Ne), and heterozygosity(He)were greatest for the STAT5 B_197_A G SNP locus in al goat breeds. Pairwise coefficients of linkage disequilibrium(D′, r~2)revealed complete LD(r~2= 1) between significant SNP polymorphisms in CI TA and SERPING1 and strong LD(r~2= 0.93 and0.98) between polymorphisms in HSPA8 and ATP2 A3, respectively. Correlation coefficient(r) between FEC and body weight(BW) was significantly positive(r = 0.56***, P 0.001) but that between FEC and packed cel volume(PCV) was negatively significant(r =-0.47**, P 0.01) in the total population of goats. On the other hand, correlation coefficient(r)between BW and PCV was not significant in total population of goats. Association analysis revealed that haplotypes within ATP2 A3, HSPA8, and SERPING1 were significantly associated with FEC. Quantitative real-time PCR revealed that the relative expression of m RNA was higher(P 0.001) for resistant, compared to susceptible, groups of goats for al candidate genes except CI TA.Conclusions: This study identified SNP markers that can potential y be used in marker-assisted selection programs to develop goat breeds that are resistant to H. contortus. 相似文献
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Mizanur Rahman Nibaran Chandra Das Narayan Saha Mahmuda Islam 《Small-Scale Forestry》2010,9(3):369-378
A study was conducted on small-scale enterprises based on murta (Schumannianthus dichotoma (Sal.) Willd.) in Gowainghat upazila (sub-district) to investigate their nature, profitability and sustainability. The study
area was selected purposively while a general random sampling method was followed to select individual respondents. About
94% people are involved in murta-based enterprises and there is a clear division of labour between males and female. Almost
80% of the manufacturing work is done by females. The average annual income of the artisans is Tk.65733 (USD 939) and 62%
of the total income comes from murta-based small enterprises. Fresh water swamp forest and homestead forest are the major
sources of raw materials and cost of raw materials ranges from Tk.127 for simple dining mats to Tk.188 for coloured bed mats.
Net average profit per article ranges from Tk.127 to Tk.250. However, the sustainability of these enterprises is at risk,
due in particular to shortage of raw materials and lack of supportive government policy. 相似文献
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在孟加拉锡尔赫特地区Khasia部落家庭园地或其周围,对基于槟榔叶农林复合系统的文化产业与经济管理技术进行了调查研究。Khasia是一个受教育较普及的社区;该区家庭平均大小为7．68人,男女比率为141：100;家庭园地里物种丰富。在槟榔农林复合系统中共有15个木材品种,22个园艺种,6个药用植物种,以及13个一年生作物种（包括一些叶用蔬菜）,7个香味料植物种和5个竹类种。Khasia也是一个经济繁荣区,最小家庭月收入57美元。槟榔收益是当地居民收入的重要来源。该区95．45％的家庭涉及槟榔农事。槟榔人工林年平均收入约为1157美元／公顷,此农林复合生产项目的收益．投入比率为4．47。槟榔人工林区内物种丰富度较高,对维持农林复合系统可持续性以及系统内生物多样性保护具有重要意义。图2表3参19。 相似文献
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Financial viability and conservation role of betel leaf based agroforestry: an indigenous hill farming system of Khasia community in Bangladesh 总被引：1，自引：0，他引：1
A study was conducted to investigate the cultural and financial management techniques of betel leaf based agroforestry system practiced in or near homegardens of Khasia community in Jaintapur Upazila in the district of Sylhet, Bangladesh. The Khasia is an educated community where 100% of Khasia people were literate, a stunning fact for this ethnic community in Bangladesh. The average family size in the study area was 7.68, with a ration of male and females of 141:100. The homegardens of the Khasia are rich in species composition, which 15 timber species, 22 horticultural species, six medicinal species, 13 annual crops including leafy vegetables, seven species of spices and five species of bamboo were identified along with betel leaf. The Khasia is an economically prosperous community with the minimum family incomes of Tk 4000 per month (Tk. 70=1 US Dollar). Betel leaf based agroforestry is very common being a prevalent source of income. About 95.45% of the households are involved in betel leaf husbandry. The mean annual income from one hectare of betel leaf plantation was estimated to be Tk. 80979. This practice was proven to be a profitable business where the benefit cost ratio was calculated to be 4.47. Moreover, the species composition in the betel leaf plantation area (the forest area once utilized by Khasia for shifting cultivation) was found to be very promising to play the significant role in conservation of biological diversity making the practice a sustainable agroforestry system. 相似文献
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