Clinicopathological findings of an episode of mycotoxicosis in horses     

R. K. Dedar  N. Virmani  P. A. Bala  J. Singh  R. K. Vaid  R. A. Legha  B. N. Tripathi 《Equine Veterinary Education》2019,31(5):236-241

This report of mycotoxicosis in horses describes the clinical signs, post-mortem findings, histopathological findings and prognosis following the accidental feeding of mycotoxin contaminated fodder to the horses at a farm over a 3-year period. Variable clinical signs viz. weight loss, height retardation in foals, episodes of sudden weakness and staggering gait, ulceration in the oral cavity and at mucocutaneous junctions, yawning, decreased appetite to complete anorexia, rectal prolapse, and failure of blood clotting were observed in many horses at an organised equine farm over a period of 2–3 years. Post-mortem examination of these cases revealed liver cirrhosis and pathological changes in other organs too. On examination of the fodder, it was observed that pearl millet fodder fed to the animals had ergot infestation. On laboratory investigation of the fodder, aflatoxins levels ranged from 24 ppb to 70 ppb in pearl millet fodder. The analysis eventually led to discontinuation of the pearl millet fodder. On follow-up for 2 years, no new cases of hepatic cirrhosis were seen. Most of the horses at the farm including those that had shown high levels of serum gamma glutamyl transferase (GGT) and weight loss, recovered completely. The present episode demonstrates that there is a need for regular monitoring of cereal fodders of horses in subtropical and tropical areas to avoid mycotoxicosis. In the present episode, monitoring serum/plasma GGT levels was found to be a sensitive biochemical indicator to identify liver damage caused by mycotoxins.  相似文献   

Rapid diagnosis of tuberculosis in dromedary camel (Camelus dromedarius) using lateral flow assay-based kit     

Ranjan  Rakesh  Narnaware  Shirish D.  Nath  Kashi  Sawal  R. K.  Patil  N. V. 《Tropical animal health and production》2018,50(4):907-910

Accurate early antemortem diagnosis of tuberculosis in dromedary camels is difficult due to the lack of reliable diagnostic test. The present study aimed to evaluate a lateral flow assay-based kit (rapid assay kit) in tuberculosis diagnosis that employs immuno-chromatographic detection of antibodies in serum, plasma, or whole blood. In a dromedary camel herd comprising 337 animals located at Bikaner, Rajasthan, India, 50 adult weak camels (11 males and 39 females) were tested by applying a single intradermal tuberculin test (SIDT) and rapid assay kit. A total of 14 animals (2 males, 12 females) were found positive in rapid assay. In SIDT, four animals revealed a positive reaction in the neck region and seven animals in the tail base. Another male animal was found SIDT positive but negative in rapid assay; it died after 12 months. Nine rapid assay positive animals died asymptomatically in 1- to 11-month period revealing postmortem tuberculosis lesions that were confirmed by Ziehl-Neelsen staining and histopathology. No tuberculous lesion was evident in the animal found positive in SIDT alone. Results of the present study indicated that serological tests like rapid assay kit can serve as a reliable test for antemortem diagnosis of tuberculosis in dromedary camel.

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Effect of Microclimatic Parameters at Different Sowing Dates on Capsule Production of Sesame (Sesamum indicum L.) in a Tropical Humid Region     

R. Nath  P. K. Chakraborty  A. Chakraborty 《Journal of Agronomy and Crop Science》2000,184(4):247-252

An experiment was conducted during the summer seasons of 1993 and 1994 on sesame ( Sesamum indicum L.) to study the effect of certain meteorological parameters on the capsule production efficiency of the main stem and branches of sesame cultivars at different sowing dates in alluvial (Entisol) soil of the tropical humid region in West Bengal, India. The highest capsule production by the main stem and the first, second and third primary branches in accrocentric order was observed for the crop sown on 19 February. The number of capsules on the main stem was reduced by 70.51 and 34.98 % when the crop was sown on 21 March and 28 April, respectively. The humidity profile at 50 days after emergence (DAE) and photosynthetically active radiation (PAR) at 70 DAE had direct positive effects on main stem capsule production. The variations of 38, 21 and 56 % in main stem contribution to capsule production might be explained by the temperature profile, relative humidity and PAR, respectively. Thecultivar Rama produced higher numbers of capsules in branches than Kanke-1 and B-67 at all times of sowing.  相似文献   

Potential Inhibitors for SARS-CoV-2 and Functional Food Components as Nutritional Supplement for COVID-19: A Review     

Singh  Pushpendra  Tripathi  Manish Kumar  Yasir  Mohammad  Khare  Ruchi  Tripathi  Manoj Kumar  Shrivastava  Rahul 《Plant foods for human nutrition (Dordrecht, Netherlands)》2020,75(4):458-466

Plant Foods for Human Nutrition - The severe acute respiratory syndrome is a viral respiratory infection and commonly called as COVID-19, caused by severe acute respiratory syndrome coronavirus-2...  相似文献   

Current remembrances: Turning the tides of knowledge toward decolonization – Edited by Setsu Shigematsu & Keith L. Camacho     

Anjali L. Nath MA  PhD Student 《Asia Pacific viewpoint》2011,52(3):371-372

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Cytogenetics of a tetraploid form of Phleum pratense L.     

E. L. Nielsen  J. Nath 《Euphytica》1961,10(3):343-350

A tetraploid form of Phleum pratense from southwestern Europe was found to behave cytogenetically as an autotetraploid. Inheritance patterns in inbred seedlings artificially inoculated with stem rust agreed with this interpretation if chromosome and chromatid assortment are assumed.Results of cooperative investigations of the Crops Research Division, Agricultural Research Service, U.S. Department of Agriculture, and the Wisconsin Agricultural Experiment Station.Geneticist, Crops Research Division, A.R.S., U.S. Department of Agriculture, and former Graduate Assistant, Agronomy Department, Wisconsin Agricultural Experiment Station, Madison, Wisconsin.  相似文献   

Short term effect of applied nitrate on nitrogen metabilism of Acacia catechu seedlings     

U. Thakur  D. K. Khurana  A. K. Nath 《New Forests》1996,12(1):1-9

Nitrogen metabolism of Acacia catechu seedlings was studied after 5, 10 and 15 days of daily 20 mM nitrate application. Fresh weight of shoots and total nitrogen content of the plants increased significantly with applied nitrate but there was no effect on nodulation. An increase in the nitrate reductase activity, nitrate and nitrite content in nodules and leaves of the treated plants was also observed. However, the total soluble protein content declined and the amino acid content increased in different parts of the treated plants.  相似文献   

Freeze-dried powder of cow urine reduces the viability of the snail Lymnaea acuminata     

Ruchi Tripathi  V. K. Singh  D. K. Singh 《Journal of pest science》2006,79(3):143-148

Molluscicidal activity of cow urine alone and with different additives was studied against Lymnaea acuminata. The toxicity of cow urine kept for 15 days in sunlight (8 h/day) or ambient laboratory conditions against the snail was time- and concentration-dependent. The pH of fresh cow urine is 7.4 which changes to 10.9 when kept for 15 days in laboratory; exposure to sunlight for the same period alter the pH to 10.85. Binary combinations (1:1) of freeze-dried cow urine kept for 15 days separately with each of Allium sativum (Liliaceae) bulb powder, Azadirachta indica (Meliaceae) oil, Annona squamosa (Annonaceae) seed powder, Ferula asafoetida (Apiaceae) root latex and tea leaves, and Camellia sinensis (Theaceae) were more toxic to the snail than treatment with urine alone. Additives to cow urine in sunlight were more effective than those under laboratory conditions.  相似文献   

Biomass and production of fine and coarse roots of trees under agrisilvicultural practices in north-east India   总被引：1，自引：0，他引：1  

S. K. Dhyani  R. S. Tripathi 《Agroforestry Systems》2001,50(2):107-121

An understanding of the rooting pattern of tree species used in agroforestry systems is essential for the development and management of systems involving them. Seasonal variation, depth wise and lateral distribution of biomass in roots of different diameter classes and their annual production were studied using sequential core sampling. The investigations were carried out in four tree species under tree only and tree+crop situations at ICAR Research Farm, Barapani (Meghalya), India. The tree species were mandarin (Citrus reticulata), alder (Alnus nepalensis), cherry (Prunus cerasoides) and albizia (Paraserianthes falcataria). The contribution of fine roots to the total root biomass ranged from 87% in albizia to 77% in mandarin. The bulk of the fine roots (38% to 47%) in the four tree species was concentrated in the upper 10 cm soil layer, but the coarse roots were concentrated in 10–20 cm soil depth in alder (46%) and albizia (51%) and at 0–10 cm in cherry (41%) and mandarin (48%). In all the four tree species, biomass of both fine- and coarse-roots followed a unimodal growth curve by showing a gradual increase from spring (pre-rainy) season to autumn (post rainy) season. Biomass to necromass ratio varied between 2 to 3 in the four tree species. The maximum (3.2) ratio was observed during spring and the minimum (2) in the rainy season. In alder and albizia, the fine roots were distributed only up to 1 m distance from the tree trunk but in the other two species they were found at a distance up to 1.5 m from the tree trunk. The annual fine root production varied from 3.6 Mg ha^–1 to 6.2 Mg ha^–1 and total production from 4.2 to 8.4 Mg ha^–1 in albizia to mandarin, respectively. Cherry and mandarin had a large number of woody roots in the surface layers which pose physical hindrance during soil working and intercultural operations under agroforestry. But the high biomass of roots of these two species may be advantageous for sequential or spatially separated agroforestry systems. However, alder and albizia have the most desirable rooting characteristics for agroforestry systems.This revised version was published online in November 2005 with corrections to the Cover Date.  相似文献   

Small-scale agroforestry for upland community development: a case study from Chittagong Hill Tracts, Bangladesh     

Tapan K. Nath  Makoto Inoue  Hla Myant 《Journal of Forest Research》2005,10(6):443-452

The potentialities of agroforestry are generally investigated through their biophysiological phenomena, cost–benefit analysis, and possible impact upon poverty reduction. There have been inadequate studies on the actual impacts of agroforestry intervention on small landholders and of farmers' attitudes toward these agroforestry programs. Drawing upon the findings of an empirical study, this article explores the effects of small-scale agroforestry on upland community development in the Chittagong Hill Tracts, Bangladesh. More specifically, the study clarifies the merits and demerits of different agroforestry systems as perceived by farmers, their impacts on the rural economy and the environment, farmers' attitudes toward the adoption of agroforestry, and impacts of various government policies. Field data were collected by administering questions to 90 randomly selected smallholders of the Upland Settlement Project (USP), as well as from project staff. The research tools employed were semistructured interviews, group discussions, and uncontrolled observations. The results indicated that the agroforestry interventions have in fact increased farmers' income through employment and the selling of farm products, as well as by improving the ecological conditions of these areas through reduction of soil erosion, increasing tree coverage, and maintaining soil fertility. The adoption of different agroforestry systems was governed mainly by the farmers' interests in following these techniques, their ability to cultivate the land in the prescribed manner, and the market demand for their products. The major obstacles that prevented increased agroforestry improvements included lack of confidence in new land-use systems, inappropriate project design (e.g., top-down innovation approach), and policy issues regarding land tenure. Recommendations are proposed to strengthen social capital in local organizations to enhance the livelihoods of the upland communities.  相似文献