Evaluation of potato seed tubers from different sources in the Punjab plain of Pakistan     

Altaf Hussain Chaudhry  Syed Mahfooz Ali Shah  Kh. Imdad Hussain  Ch. A. H. Tariq  Raymon E. Webb 《American Journal of Potato Research》1984,61(11):703-709

Inability to produce large quantities of high quality, relatively diseasefree potato seed is a major constraint to providing economic support to a highly important and rapidly expanding potato production industry in Pakistan. Studies were undertaken for 5 years to evaluate productivity of seed of cultivars Red Bad, Ajax, Atica, Patrones, Montana, Cosima, Desiree, and Cardinal grown at five environmentally diverse locations in Pakistan versus seed of the same cultivars imported from Europe. The productivity trials were conducted during the autumn and spring seasons at the Ayub Agricultural Research Institute, Faisalabad (Punjab Plains). The results from the 5-year test period indicate that seed of each of the cultivars produced in the high hills (Baluchistan, Northwest Frontier Province) and during autumn (September to December) in the Punjab Plains, the latter cold stored until the following September, are equally as productive as seed imported from Europe.  相似文献   

IMAGING OF PHEOCHROMOCYTOMA IN 2 DOGS USING p-[¹⁸F] FLUOROBENZYLGUANIDINE     

Clifford R.  Berry  DVM  Timothy R.  Degrado  PhD  Felicia  Nutter  DVM  Pradeep K.  Garg  PhD  Edward B.  Breitschwerdt  DVM  MS  Kathy  Spaulding  DVM  Kevin D.  Concannon  DVM  Michael R.  Zalutsky  PhD  R. Edward Coleman    MD 《Veterinary radiology & ultrasound》2002,43(2):183-186

p-[18F]Fluorobenzylguanidine ([18F]PFBG) is a norepinephrine analog that has been developed as a positron emission tomography (PET) imaging radiopharmaceutical. Myocardial sympathetic innervation, neuroendocrine structures, and tumors can be noninvasively imaged with [18F]PFBG. In this study, the uptake characteristics of [18F]PFBG were investigated in 2 dogs with a spontaneous pheochromocytoma. The extent of the pheochromocytoma was well documented in both dogs on the PET study. The standardized uptake values within the pheochromocytomas were greater than 25 by 10 min, and were 37 and 50 by 45 min in each dog. A third dog that was suspected to have an adrenal mass was also studied. In this dog, the [18F]PFBG study was normal. Surgical exploration and adrenal biopsy confirmed the [15F]PFBG imaging findings in both dogs. In each dog, there was rapid blood-pool clearance (within 10 min after intravenous administration of the [18F]PFBG), with high uptake specific within the myocardium and adrenal medulla. The results indicate that [18F]PFBG may be useful for imaging canine pheochromocytomas and aid in differentiating adrenal masses.  相似文献   

Einige Probleme der Forstentomologie in Pakistan     

Ghulam-Ullah Chaudhry Ph. D. 《Journal of pest science》1962,35(1):1-5

Ohne Zusammenfassung  相似文献   

半农半牧山区的畜牧业发展趋势     

郭仁民 《青海草业》2002,11(1):50-50

饲养牲畜是山区农业的一个组成部分。在这种半农半牧的生产体系中 ,种植、养殖及公有资源(如草地 ,森林等 )之间是一种动态关系。牲畜依赖于公有草地上的饲草及农作物和其副产品 ,但又以粪肥和耕畜的形式“回报”饲草、饲料和农作物。因此牲畜对山区农业持续发展是必须的。分析过去 1 5年间印古什地区海拔较低的农区牲畜数量的发展趋势 ,可以看出 ,在中国、印度、尼泊尔及缅甸 ,总的来说黄牛的数量在减少 ,在印度和巴基斯坦的亚热带地区圈养水牛的数量在增加。黄牛减少的原因是因为饲料来源和公用放牧地减少 ,而且圈养水牛的增加也替代了黄…  相似文献   

强制换羽的历史、变化历程和今后的发展方向     

何忠武  M.Yousaf  A.S.Chaudhry 《国外畜牧学(猪与禽)》2009,(1):31-34

换羽是禽类的一种自然现象,换羽时,禽类用新羽毛替换旧羽,其采食量减少,体重损失,产蛋停止。产蛋母鸡的换羽可以通过控制光周期、停饲或限饲以及在饲料中加入矿物质或不同数量的其它原料诱发引起。强制换羽可提高产蛋量,改善蛋的品质。在新的养鸡场和孵化场,强制换羽可降低死亡率、减少生产成本与投资额。停饲法虽然一直是诱发家禽换羽的一种最有效方法,但是由于动物福利的原因,此方法在英国和欧洲是不合法的。这可能会影响全球的家禽业。鉴于此,各国正努力寻找一种非停饲的方法作为诱发家禽换羽的可行替代法。本文通过对过去测试过的各种方法和它们成为诱导产蛋母鸡换羽的停饲法的一种更合理替代法的可能性进行考查,综述了强制换羽的历史以及在未来的重要意义。  相似文献   

In Vitro and In Silico Characterization of G-Protein Coupled Receptor (GPCR) Targets of Phlorofucofuroeckol-A and Dieckol     

Pradeep Paudel  Su Hui Seong  Se Eun Park  Jong Hoon Ryu  Hyun Ah Jung  Jae Sue Choi 《Marine drugs》2021,19(6)

Phlorotannins are polyphenolic compounds in marine alga, especially the brown algae. Among numerous phlorotannins, dieckol and phlorofucofuroeckol-A (PFF-A) are the major ones and despite a wider biological activity profile, knowledge of the G protein-coupled receptor (GPCR) targets of these phlorotannins is lacking. This study explores prime GPCR targets of the two phlorotannins. In silico proteocheminformatics modeling predicted twenty major protein targets and in vitro functional assays showed a good agonist effect at the α2C adrenergic receptor (α_2CAR) and an antagonist effect at the adenosine 2A receptor (A_2AR), δ-opioid receptor (δ-OPR), glucagon-like peptide-1 receptor (GLP-1R), and 5-hydroxytryptamine 1A receptor (5-TH_1AR) of both phlorotannins. Besides, dieckol showed an antagonist effect at the vasopressin 1A receptor (V_1AR) and PFF-A showed a promising agonist effect at the cannabinoid 1 receptor and an antagonist effect at V_1AR. In silico molecular docking simulation enabled us to investigate and identify distinct binding features of these phlorotannins to the target proteins. The docking results suggested that dieckol and PFF-A bind to the crystal structures of the proteins with good affinity involving key interacting amino acid residues comparable to reference ligands. Overall, the present study suggests α_2CAR, A_2AR, δ-OPR, GLP-1R, 5-TH_1AR, CB₁R, and V_1AR as prime receptor targets of dieckol and PFF-A.  相似文献   

SPECIES VARIATION IN THE NEUROMUSCULAR EFFECT OF A NEW MUSCLE RELAXANT (ORG9426) IN RODENTS     

I.A. Chaudhry  H. Nagashima  P.L. Goldiner  F.F. Foldes 《Veterinary anaesthesia and analgesia》1991,18(Z1):379-380

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The epidemiology of fascioliasis in Malawi: I. The epidemiology in the intermediate host     

S A Mzembe  M A Chaudhry 《Tropical animal health and production》1979,11(4):246-250

Fasciola gigantica Cobbold was studied in the intermediate host snail. On snail survey Lymnaea natalensis Krauss was the species found responsible for the transmission of Fasciola gigantica in Malawi. The ecology of this snail was studied at 5 different habitats spread throughout Malawi. The snail population was recorded high from April to October. The epidemiological cycle of Fasciola gigantica in the snail was determined and it was shown that snail infection was high in April and May and thus more metacercariae are released in August to October following such an infection. To complete the epidemiological picture studies reported separately were done involving the definitive host.  相似文献   

The epidemiology of fascioliasis in Malawi part II. Epidemiology in the definitive host     

S. A. T. Mzembe  M. A. Chaudhry 《Tropical animal health and production》1981,13(1):27-33

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Nutrient-alginate encapsulation of in vitro nodal segments of pomegranate (Punica granatum L.) for germplasm distribution and exchange     

Soumendra K. Naik  Pradeep K. Chand 《Scientia Horticulturae》2006

The present paper demonstrates the potential of nutrient-alginate encapsulation of axenic nodal segments of pomegranate for synthetic seed technology, which could be useful in germplasm distribution and exchange. Nodal segments from in vitro shoot cultures derived from mature nodal explants (source A) or axenic cotyledonary nodes (source B) were encapsulated in calcium alginate hydrogel containing Murashige and Skoog's [Murashige, T., Skoog, F., 1962. A revised medium for rapid growth and bioassays with tobacco tissue cultures. Physiol. Plant 15, 473–497] medium (MS) supplemented with 4.44 μM benzyladenine (BA) and 0.54 μM naphthalene acetic acid (NAA). Of various concentrations of sodium alginate (1–6%) and the complexation solution of calcium chloride (50–125 mM), a combination of 3% sodium alginate and 100 mM calcium chloride was most suitable for formation of ideal synthetic seeds. Morphogenic response of encapsulated nodal segments to seven different planting media was evaluated. Encapsulated nodal segments of both the sources exhibited shoot development only in four selected media. Of the planting media evaluated, % sprouting (shoot development) was the highest in MS medium augmented with 4.44 μM BA and 0.54 μM NAA and lowest in (1/2) MSS medium. One step germination i.e. both shoot and root formation was possible only with encapsulated nodal segments of source B in MS, (1/2) MSS and natural soil + (1/2) MSS, with MS being most effective. Encapsulated nodal segments stored up to 30 days at 4 °C were capable of sprouting. Plants regenerated from the encapsulated nodal segments were hardened off and transferred to soil.  相似文献