Incidence of Eimeria species in goats of Uttar Pradesh     

D Jha  G Subramanian 《The Indian veterinary journal》1966,43(7):588-591

  相似文献   

Radiative absorption enhancements due to the mixing state of atmospheric black carbon   总被引：3，自引：0，他引：3  

CD Cappa  TB Onasch  P Massoli  DR Worsnop  TS Bates  ES Cross  P Davidovits  J Hakala  KL Hayden  BT Jobson  KR Kolesar  DA Lack  BM Lerner  SM Li  D Mellon  I Nuaaman  JS Olfert  T Petäjä  PK Quinn  C Song  R Subramanian  EJ Williams  RA Zaveri 《Science (New York, N.Y.)》2012,337(6098):1078-1081

Atmospheric black carbon (BC) warms Earth's climate, and its reduction has been targeted for near-term climate change mitigation. Models that include forcing by BC assume internal mixing with non-BC aerosol components that enhance BC absorption, often by a factor of ~2; such model estimates have yet to be clearly validated through atmospheric observations. Here, direct in situ measurements of BC absorption enhancements (E(abs)) and mixing state are reported for two California regions. The observed E(abs) is small-6% on average at 532 nm-and increases weakly with photochemical aging. The E(abs) is less than predicted from observationally constrained theoretical calculations, suggesting that many climate models may overestimate warming by BC. These ambient observations stand in contrast to laboratory measurements that show substantial E(abs) for BC are possible.  相似文献   

Development and utilization of novel SSRs in foxtail millet [Setaria italica (L.) P. Beauv.]     

Sarika Gupta  Kajal Kumari  Mehanathan Muthamilarasan  Alagesan Subramanian  Manoj Prasad 《Plant Breeding》2013,132(4):367-374

Although the foxtail millet [Setaria italica (L.) P. Beauv.] is recently regarded as a model crop for studying functional genomics of biofuel grasses, its genetic improvement to some extent was limited due to the non‐availability of molecular markers, particularly the microsatellite markers and the saturated genetic linkage map. Considering this, we attempted to generate a significant number of microsatellite markers in cultivar ‘Prasad’. Two hundred and fifty‐six clones were sequenced to generate 41.82‐kb high‐quality sequences retrieved from genomic library enriched with dinucleotide repeat motifs. Microsatellites were identified in 194 (76%) of the 256 positive clones, and 64 primer pairs (pp) were successfully designed from 95 (49%) unique SSR‐containing clones. The 67.4% primer designing ability, 100% PCR amplification efficiency and 45.3% polymorphic potential in the parents of F₂ mapping population established the efficacy of genomic microsatellites. All the 64 microsatellite markers displayed high level of cross‐species amplification (~67%) in 10 millets and non‐millets species. These experimental findings suggest the utility and efficacy of SSRs in diverse genotyping applications, resolving QTLs, phylogenetic relationships and transferability in several important grass species.  相似文献   

Acute Acalculous Cholecystitis: A Rare Complication of Snake Bite     

Subramanian Senthilkumaran  Ritesh G. Menezes  Sadip Pant  Ponniah Thirumalaikolundusubramanian 《The Forestry Chronicle》2013,24(3):277-279

  相似文献   

β‐Mercapto‐ethanol‐treated yeast showed better protection against white spot syndrome virus infection in Indian white shrimp Fenneropenaeus indicus     

Thavarool Puthiyedathu Sajeevan  Subramanian Selven  Rosamma Philip 《Aquaculture Research》2010,41(10):e715-e718

  相似文献   

Chemical Composition,Antifeedant, Repellent,and Toxicity Activities of the Rhizomes of Galangal,Alpinia galanga Against Asian Subterranean Termites,Coptotermes gestroi and Coptotermes curvignathus (Isoptera: Rhinotermitidae)     

Fauziah Abdullah  Partiban Subramanian  Halijah Ibrahim  Sri Nurestri Abdul Malek  Guan Serm Lee  Sok Lai Hong 《Journal of insect science (Online)》2015,15(1)

Dual choice bioassays were used to evaluate the antifeedant property of essential oil and methanolic extract of Alpinia galanga (L.) (locally known as lengkuas) against two species of termites, Coptotermes gestroi (Wasmann) and Coptotermes curvignathus (Holmgren) (Isoptera: Rhinotermitidae). A 4-cm-diameter paper disc treated with A. galanga essential oil and another treated with either methanol or hexane as control were placed in a petri dish with 10 termites. Mean consumption of paper discs (miligram) treated with 2,000 ppm of essential oil by C. gestroi was 3.30 ± 0.24 mg and by C. curvignathus was 3.32 ± 0.24 mg. A. galanga essential oil showed significant difference in antifeedant effect, 2,000 ppm of A. galanga essential oil was considered to be the optimum concentration that gave maximum antifeedant effect. The essential oil composition was determined using gas chromatography-mass spectrometry. The major component of the essential oil was 1,8-cineol (61.9%). Antifeedant bioassay using 500 ppm of 1,8-cineol showed significant reduction in paper consumption by both termite species. Thus, the bioactive agent in A. galangal essential oil causing antifeeding activity was identified as 1,8-cineol. Repellent activity shows that 250 ppm of 1,8-cineol caused 50.00 ± 4.47% repellency for C. gestroi, whereas for C. curvignathus 750 ppm of 1,8-cineol was needed to cause similar repellent activity (56.67 ± 3.33%). C. curvignathus is more susceptible compare to C. gestroi in Contact Toxicity study, the lethal dose (LD₅₀) of C. curvignathus was 945 mg/kg, whereas LD₅₀ value for C. gestroi was 1,102 mg/kg. Hence 1,8-cineol may be developed as an alternative control against termite in sustainable agriculture practices.  相似文献   

Immunostimulatory effect of mangrove‐derived marine yeasts in Penaeus monodon     

Manivannan Subramanian  Nabeel M Alikunhi  Kathiresan Kandasamy 《Aquaculture Research》2014,45(3):389-396

This study attempted to assess the efficacy of mangrove‐derived marine yeasts as a source of immuno‐stimulant in the tiger shrimp, Penaeus monodon. The shrimp was fed on the diets in supplementation with yeast biomass at 10% for a period of 15 days and then challenged with the pathogenic Vibrio cholerae. The animals were assessed for immune responses in terms of total haemocyte counts, phenol oxidase and endobiotics. Among the yeasts tested, Rhodotorula minuta was found to have high immunostimulatory effect in the shrimps especially after challenge with the pathogenic vibrio.  相似文献   

Russell's Viper Envenomation-Associated Addisonian Crisis     

Subramanian Senthilkumaran  Ritesh G. Menezes  Syed Ather Hussain  Sushil Allen Luis  Ponniah Thirumalaikolundusubramanian 《The Forestry Chronicle》2018,29(4):504-507

  相似文献   

Variation in tuber mineral concentrations among accessions of <Emphasis Type="Italic">Solanum</Emphasis> species held in the Commonwealth Potato Collection     

Nithya K. Subramanian  Philip J. White  Martin R. Broadley  Gavin Ramsay 《Genetic Resources and Crop Evolution》2017,64(8):1927-1935

The variation in tuber mineral concentrations amongst accessions of wild tuber-bearing Solanum species in the Commonwealth Potato Collection (CPC) was evaluated under greenhouse conditions. Selected CPC accessions, representing the eco-geographical distribution of wild potatoes, were grown to maturity in peat-based compost under controlled conditions. Tubers from five plants of each accession were harvested, bulked and their mineral composition analysed. Among the germplasm investigated, there was a greater range in tuber concentrations of some elements of nutritional significance to both plants and animals, such as Ca, Fe and Zn (6.7-fold, 3.6-fold, and 4.5-fold, respectively) than others, such as K, P and S (all less than threefold). Significant positive correlations were found between mean altitude of the species’ range and tuber P, K, Cu and Mg concentrations. The amount of diversity observed in the CPC collection indicates the existence of wide differences in tuber mineral accumulation among different potato accessions. This might be useful in breeding for nutritional improvement of potato tubers.  相似文献   

Toxicity of diafenthiuron to honey bees in laboratory,semi‐field and field conditions     

Johnson Stanley  Subramanian Chandrasekaran  Gnanadhas Preetha  Sasthakutty Kuttalam 《Pest management science》2010,66(5):505-510

BACKGROUND: Cardamom, an important spice crop often attacked by many insect pests, is controlled mainly using synthetic insecticides. As honey bees play a vital role in pollination in cardamom, the impact of insecticides on honey bees needs to be explored to assess its safety. RESULTS: Risk assessment based on contact toxicity revealed diafenthiuron to be a non‐selective insecticide to bees with a low selectivity ratio (the ratio between the LD₅₀ for beneficial and pest species). A dose of diafenthiuron that killed 90% of cardamom borer, Conogethes punctiferalis Guenee, was found to kill 100% of Indian bees. Based on the hazard ratio (the ratio between the field‐recommended dose and the LD₅₀ for the beneficial), diafenthiuron was found to be slightly to moderately toxic to bees. Diafenthiuron, even at low concentrations of LC₁ (the concentration that killed 1% of bees), was found to affect the foraging and homing behaviour of Indian bees. Of bees fed with 30 µg mL^?1 of diafenthiuron, 40% were found missing on the third day after exposure. However, diafenthiuron did not affect bee visits to the cardamom fields. CONCLUSION: Diafenthiuron is more highly toxic to Apis cerana indica F. than to C. punctiferalis by contact, using selectivity ratio and probit substitution methods of risk assessment, but the hazard ratio revealed diafenthiuron to be a slightly to moderately toxic chemical. Diafenthiuron was found to affect the foraging and homing behaviour of bees at sublethal concentrations. Thus, sublethal effects are more relevant in risk assessment than lethal and acute effects. Copyright © 2010 Society of Chemical Industry  相似文献