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Effect of supplementation of tef (Eragrostis tef) straw with different levels of noug (Guizotia abyssinica) meal on worked Arsi oxen (Bos indicus) 饲粮中添加不同水平的乌鳢粗粉对加工过的阿西牛的影响
Tropical Science
Pub Date : 2007-03-01 DOI: 10.1002/TS.195
A. Mengistu, A. Ebro, Tadesse A. Assefa, A. Hirpa, B. Shenkute
Supplementing the tef (Eragrostis tef) straw feed of Arsi oxen (Bos indicus) with 1, 2 or 4 kg per animal per day of noug (Guizotia abyssinica) meal for 90 days improved growth parameters. Supplementation significantly increased feed intake, average daily gain, and the weight of dressed carcass and lean meat. Supplementation with 1 kg of noug meal was the most profitable, giving a net return per animal of US$17.10, whereas a sole diet of tef straw gave a loss of US$18.66 per animal. Copyright © 2007 John Wiley & Sons, Ltd
在Arsi牛(Bos indicus)秸秆饲料中，每头牛每天添加1、2或4 kg的藜麦(Guizotia abyssinica)粉，持续90 d，可改善生长参数。饲粮的添加显著提高了采食量、平均日增重以及屠宰胴体和瘦肉的体重。饲粮中添加1公斤营养膳食是最有利可图的，每头动物的净收益为17.10美元，而仅饲喂tef秸秆的每头动物的净收益为18.66美元。版权所有©2007 John Wiley & Sons, Ltd
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引用次数: 3
Effect of irrigation, fertiliser and manure on yield and economic return of okra/pepper intercrops 灌、肥、肥对秋葵/辣椒间作产量及经济效益的影响
Tropical Science
Pub Date : 2007-03-01 DOI: 10.1002/TS.194
A. Lawal, S. Rahman
In an experimental trial in northern Nigeria, intercrops of okra (Abelmoschus esculentus) and pepper (Capsicum annuum) gave better yields and economic returns with application of 400 kg ha−1 of inorganic fertiliser, 5 t ha−1 of manure and 10-day irrigation intervals. Copyright © 2007 John Wiley & Sons, Ltd
在尼日利亚北部进行的一项试验中，秋葵(Abelmoschus esculentus)和辣椒(Capsicum annuum)间作施用400公斤无机肥、5吨粪肥和10天灌溉间隔，获得了更好的产量和经济回报。版权所有©2007 John Wiley & Sons, Ltd
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引用次数: 21
Development of a new tapioca product with tropical fruit pulp and soy extract 以热带果浆和大豆提取物为原料的木薯粉新产品的研制
Tropical Science
Pub Date : 2007-03-01 DOI: 10.1002/TS.196
E. Brito, D. Garruti, da M.A.S. Silva
Tapioca is a traditional product with great acceptability, especially in Brazil. As a starch-based food, its nutritional quality is limited to carbohydrates. The aim of this work was to evaluate the contribution of tropical fruit pulps and soy extract to tapioca's nutritional and sensory characteristics. The products were formulated with dried tapioca starch (63%) supplemented by acerola or mango fruit pulps or by soy extract in selected combinations (37%). The mixtures were homogenised and roasted for starch gelatinisation. The final product was submitted to vitamin C and protein determinations and sensory analysis (appearance, flavour, texture and overall acceptance). Vitamin C content of the acerola tapioca products was significantly increased. Protein content was increased by supplementation with soy but the absolute levels were still quite low. Acceptability by sensory attributes of formulated tapiocas was similar to, or in some cases higher than, the traditional product. Copyright © 2007 John Wiley & Sons, Ltd.
木薯粉是一种很容易被接受的传统产品，尤其是在巴西。作为淀粉类食品，其营养质量仅限于碳水化合物。本研究的目的是评价热带果浆和大豆提取物对木薯粉营养和感官特性的贡献。这些产品由干燥的木薯淀粉(63%)、针叶果浆或芒果果肉或大豆提取物(37%)组成。混合物均质和烘烤淀粉糊化。最终产品提交给维生素C和蛋白质的测定和感官分析(外观，风味，质地和整体验收)。针叶木薯制品的维生素C含量显著提高。添加大豆可提高蛋白质含量，但绝对水平仍然很低。通过感官属性，配方木薯粉的可接受性与传统产品相似，或者在某些情况下高于传统产品。版权所有©2007 John Wiley & Sons, Ltd
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引用次数: 1
Stem-cutting size of kola (Cola indica) 可拉可乐的茎切尺寸(可拉指数)
Tropical Science
Pub Date : 2007-03-01 DOI: 10.1002/TS.191
A. Famaye, A. Oloyede, Ea Adeyemi
Propagation success of stem cuttings of kola (Cola indica) was assessed with four node levels, with or without hormone treatment. Hormone treatment was not beneficial. The three-node cuttings (without hormone) gave the highest rooting success. Copyright © 2007 John Wiley & Sons, Ltd
采用激素处理和不激素处理4个节点水平对可拉茎插条繁殖成功率进行了评价。激素治疗无效。三节扦插(无激素)生根成功率最高。版权所有©2007 John Wiley & Sons, Ltd
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引用次数: 3
Preserving the best, reviewing the rest 保留最好的，回顾其余的
Tropical Science
Pub Date : 2007-03-01 DOI: 10.1002/ts.193
C. Haines
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引用次数: 0
Intercropping tef and sunflower in semi‐arid areas of Welo, Ethiopia 埃塞俄比亚韦洛半干旱地区间作苜蓿和向日葵
Tropical Science
Pub Date : 2007-03-01 DOI: 10.1002/TS.185
W. Bayu, M. Addisu, B. Tadesse, L. Admassu
The productivity of tef-sunflower intercropping, with or without fertilizer, was assessed by field trials in northeast Ethiopia. Mixed planting of 10–50% of sunflower with tef had yield advantages of 20–39% and 58–77% at two different sites. The crop proportions giving the greatest yield benefit varied between the sites. The greatest net income benefits were US$515 ha−1 and US$69 ha−1 at the two sites. Copyright © 2006 John Wiley & Sons, Ltd
在埃塞俄比亚东北部进行了田间试验，评估了施用或不施用化肥的tef-向日葵间作的生产力。10 ~ 50%的向日葵与tef混播在两个不同地点的产量优势分别为20 ~ 39%和58 ~ 77%。获得最大产量效益的作物比例因地而异。两个地点的最大净收入效益分别为515公顷和69公顷。版权所有©2006约翰威利父子有限公司
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引用次数: 16
Causes and extent of yield losses in cocoa progenies 可可后代产量损失的原因和程度
Tropical Science
Pub Date : 2007-03-01 DOI: 10.1002/TS.187
B. Adomako
Cocoa (Theobroma cacao) progenies in a field trial showed a mean yield loss of 10.3% due to unusable pods. This was equivalent to an annual loss of 98 kg ha−1 of dry beans, and 64.1% (62.8 kg ha−1), 30.5% (29.9 kg ha−1), 4.1% (4.0 kg ha−1) and 1.3% (1.4 kg ha−1) were due to black pods, immature ripe pods, rodent damage and other damage, respectively. Copyright © 2006 John Wiley & Sons, Ltd
在田间试验中，可可(Theobroma cacao)后代由于无法使用豆荚而平均产量损失10.3%。这相当于每年损失98 kg ha - 1干豆，其中黑豆荚、未成熟豆荚、鼠害和其他危害分别占64.1% (62.8 kg ha - 1)、30.5% (29.9 kg ha - 1)、4.1% (4.0 kg ha - 1)和1.3% (1.4 kg ha - 1)。版权所有©2006约翰威利父子有限公司
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引用次数: 25
Characterisation of a potyvirus from Centrosema pubescens Benth. 一株丛状芽孢中心病毒的鉴定。
Tropical Science
Pub Date : 2007-03-01 DOI: 10.1002/TS.192
O. Odedara, J. Hughes, S. Tarawali, A. Odebode, S. Winter
A virus, 750 × 18 nm, was isolated from Centrosema pubescens from Nigeria, causing leaf malformation, mosaic and mottling on the plant. When inoculated on to various test plants, it failed to produce necrotic or chlorotic lesions on Chenopodium amaranticolor, but symptoms of mottling were observed. The virus did not infect cowpea (Vigna unguiculata varieties IT82E-10, IT84S-2114, Ife brown, TVU 76 or TVU 2657), but produced chlorotic spots, vein clearing and mottling on soybean (Glycine max cultivars Malayan and Samsoy-2). Protein-A sandwich enzyme-linked immunosorbent assay (ELISA) shows that the virus is serologically closely related to Sweet potato feathery mottle virus (SPFMV) genus Potyvirus, Bean yellow mosaic virus (BYMV) genus Potyvirus and Tobacco etch virus (TEV) genus Potyvirus. Comparison of amino acid sequences of the coat protein of the virus with several potyvirus coat protein sequences, using BLAST (Basic Local Alignment Search Tool) analysis, confirmed the relationships. The antiserum raised against the virus had a titre value greater than 1 : 16,000, using antigen-coated plate ELISA. The name Centrosema mosaic virus (CenMoV) for this apparently new Potyvirus is suggested. The consequences of infection of forage legumes with this virus are discussed. Copyright © 2007 John Wiley & Sons, Ltd
摘要从尼日利亚毛蕊花(Centrosema pubescens)中分离到一株病毒，病毒长度为750 × 18 nm，可引起毛蕊花叶片畸形、花叶和斑驳。在不同的试验植株上接种后，均未在苋菜上产生坏死或褪绿的损伤，但出现了斑驳的症状。该病毒不侵染豇豆(Vigna unguiculata品种IT82E-10、IT84S-2114、Ife brown、TVU 76和TVU 2657)，但侵染大豆(Glycine max品种Malayan和Samsoy-2)后产生绿斑、脉清和斑纹。蛋白- a夹心酶联免疫吸附试验(ELISA)结果表明，该病毒与甘薯羽毛斑驳病毒(SPFMV)属Potyvirus、大豆黄花叶病毒(BYMV)属Potyvirus和烟草刻花病毒(TEV)属Potyvirus有血清学亲缘关系。利用BLAST (Basic Local Alignment Search Tool)分析方法，将该病毒外壳蛋白的氨基酸序列与几种痘病毒外壳蛋白序列进行比较，证实了它们之间的关系。采用抗原包被板酶联免疫吸附试验，获得的抗病毒血清滴度大于1:16 000。建议将这一明显的新型Potyvirus命名为centerrosema mosaic virus (CenMoV)。讨论了饲料豆科植物感染该病毒的后果。版权所有©2007 John Wiley & Sons, Ltd
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引用次数: 2
Carcass and meat from intact and castrated Desert male goats of different ages 不同年龄的完整和阉割的沙漠公山羊的胴体和肉
Tropical Science
Pub Date : 2007-03-01 DOI: 10.1002/TS.190
FM El-Hag, M. Mudalal, M.-K. A. Ahmed, A. Mohamed, Marcelo Khair, O. Elbushra, M. Mekki, TK Ahmed, B. Fadlalla
Castrates consumed more feed and had higher feed intake as a percentage of body weight than intact Desert male goats. Older males had a higher dressing percentage than younger ones. Castration improved meat juiciness and tenderness scores and resulted in a relatively higher flavour score. Copyright © 2006 John Wiley & Sons, Ltd
阉割山羊的饲料消耗量和采食量占体重的百分比均高于未阉割的沙漠公山羊。年长男性的穿衣比例高于年轻男性。去势改善了肉的多汁性和嫩度得分，并导致相对较高的风味得分。版权所有©2006约翰威利父子有限公司
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引用次数: 8
Supplementary feeding to improve Desert sheep productivity under dryland farming 补饲提高旱地沙漠羊生产能力的研究
Tropical Science
Pub Date : 2007-03-01 DOI: 10.1002/TS.188
FM El-Hag, Mohammed-Khair A. Ahmed, Amal Salih, Marwan M. Khair, B. Fadlalla, Aa Ibnoaf, M. Ahmed
Supplementary feeding of Desert ewes at mating time or for 45 days pre-lambing, or both combined, increased lambing and twinning, gave heavier lambs and gave farmers a greater monetary return. The best return was with the two supplements combined. Supplementing the diet of weaned lambs for four months gave increased growth, advanced puberty, and gave higher conception and lambing rates. Copyright © 2006 John Wiley & Sons, Ltd
在交配期或产羔前45天补充喂养沙漠母羊，或两者结合，增加了产羔和双胞胎，使羔羊更重，给农民带来了更大的经济回报。两种补品结合使用效果最好。补充断奶羔羊4个月的饲粮可以促进生长，提前青春期，提高受胎率和产羔率。版权所有©2006约翰威利父子有限公司
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