The host plant selection behaviour or feeding preferences of the insects are largely mediated by the presence and distribution of secondary metabolites in plants. This insect is also called the silkwormmoth and the mulberry silkworm fig. Muga silkworm cultivation has been an age old practice, it is obviously environment controlled and the rearing performance is quite different in each season. The present paper describes the comparative rearing performance of muga silkworm under indoor and outdoor rearing conditions. Sericulture is an agroindustry which means, combining both agriculture and industry, the final product is silk. Pdf studies on different cocooning device in muga silkworm. This disease is the key factor obstructing the developmental progress of muga culture in india. The ahom kings of assam 12281826 ad patronized the culture of muga silkworm antheraea assamensis helfer for production of rare golden silk. Studies on the influence of host plants and effect of chemical stimulants on the feeding behavior in the muga silkworm. Rearing of muga silkworm muga silkworm rear in out door on tree.
Pdf study the problems and prospects of rearing of muga. One tree can be utilized for two rearing in a year alternately during spring and autumn, thus one full grown tree can yield cocoons in a year and 5 trees are required to produce 5000 cocoons which yield one kg. Factors affecting on quality muga silkworm antheraea assamensis helfer seed crop production. Factors affecting on quality muga silkworm antheraea. Improvement of host plants of muga silkworm antheraea.
Dpph radical scavenging activity of methanolic pupae extract mpe with ic 50 value of 25. Som, persea bombycina, muga silkworm, antheraea assamensis, secondary metabolites, hplc analysis. Aug 28, 2019 microsporidia are intracellular fungal parasites and they are the most common pathogens for sericulture. Muga silkworm antheraea assamensis helfer indoor rearing. Fungal colonies cfu x 104g soil in tasar waste supplemented soil. Layout, madivala, hosur road, bangalore 560 068, karnataka state, india. In this report we fabricate 2d matrices from the regenerated aqueous silk fibroin protein of the glands of nonmulberry indian muga silkworm antheraea assama assamensis. Why hatching is low in aherua junejuly and bhodia crop augsept in muga silkworm. Rowling, published under the pseudonym robert galbraith. Bacterial community structure and diversity in the gut of. Introduction the golden silk muga is the pride of assam which is associated with assamese culture and tradition muga culture is the monopoly of assam muga is an endemic silkworm species prevalent in the brahmaputra valley and adjoining hills by virtue of its typical agroclimatic condition assam alone contributes 95% of the total muga raw silk.
The experiments were conducted with an objective to standardize the indoor rearing practice of muga silkworm to avoid early instar loss and adverse climatic conditions. The life cycle of silk moth starts when a female silk moth lays eggs. Four different host plants of muga silkworm, antheraea assamensis, viz. The experiments were conducted with an objective to standardize the indoor rearing practice of muga silkworm to avoid early instar loss. Antioxidant and antigenotoxic effects of pupae of the muga.
Department of zoology, gauhati university, guwahati. The following article talks about mulberry cultivation practices, planting techniques, and growing ideas. The muga silkworm rearing is conducted throughout the year six times year on som and soalu plantations. Other important factors simultaneously contributing to the success of a muga crop are proper disinfection of rearing field, quality leaf, maintenance of hygiene in rearing field and management of rearing. Traditional practices and terminologies in muga eri culture. Neog k, dutta p, changmai a, goswami d, choudhury b 2015 comparative study on the rearing performance of muga silkworm under indoor and outdoor rearing conditions. Abstract the muga silk industry of assam has been in existence since time immemorial. Muga silkworm antheraea assamensis helfer indoor rearing by. Muga silk has a special status due to its natural golden yellow colour.
Silkworm the life cycle of silkworm processing of silk. Studies on different cocooning device in muga silkworm antheraea assamensis, helfer. Muga silk industry of assam in historical perspectives. The mitochondrial genome of muga silkworm antheraea. It is a labor intensive activity is providing direct and indirect employment to a large number. Introduction muga silkworm having least number of chromosome n15 among saturnid. Mulberry silkworm it is a domesticated variety of silkworm and has been exploited for over 4000 years. The fiber is obtained from the semidomesticated multivoltine silkworm. Mulberry cultivation and silkworm rearing a full guide. The caterpillar or larvae are hatched from the eggs of the silk moth. The silkworm is a 2014 crime fiction novel written by j.
Life cycle of muga silkworm antheraea assama ww muga silkworm is a holometabolous insect passing through complete metamorphosis from egg to adult. India production volume of muga silk 2019 statista. Studies on the influence of host plants and effect of. In pupa stage, a weave is netted around by the silkworm to hold itself. Muga silkworm antheraea assamensis helfer belongs to lepidoptera of saturniidae family and, geographically isolated only to ne. On the other hand highest number of pathogen isolated from the 5th instar dead silkworm, least number isolated from the 3rd istar silkworm, 4th instar. It is the second novel in the series featuring private investigator cormoran strike, and is a sequel to the cuckoos calling. It is found in assam in northeast india where 99% of its production occurs. Muga silk is the product of the silkworm antheraea assamensis endemic to assam. In assam, muga silk weaving is an ancient craft, though there is no definite and precise mention of the time of its origin.
Characterization and pathogenicity assessment of gutassociated. Most of the research and development of technology is confined to china, india, and japan in asia. This study investigated the antioxidant, antityrosinase and antigenotoxic ability of pupae of the muga silkworm antheraea assamensis. Sarmah et altraditional practices in muga and eri culture 451 chaloni. Bacterial community structure and diversity in the gut of the. Culture, muga culture and eri culture, and each one. Male and female moths are flightless and lack functional mouth parts.
The assam silk industry, now centered in sualkuchi, is a laborintensive industry. Eri silkworm egg laying movie how eri silkworm lay eggs. Mar 11, 2015 the following article talks about mulberry cultivation practices, planting techniques, and growing ideas. It is the caterpillar of a moth whose cocoon is used to make silk. Pdf muga silkworm antheraea assamensis helfer is endemic to assam and adjoining areas in northeastern. Ebscohost serves thousands of libraries with premium essays, articles and other content including muga silkworm, antheraea assamensis lepidoptera. The silkworm, bombyx mori produces the silk of commercial importance. Jul 19, 20 most of the studies are carried out on mulberry silk bombyx mori, however silk from indian nonmulberry silkworms are relatively unexplored. T able 2 performance of of different biotypes of muga silkworm a assamensis from trtgh 4555 at joint graduate school of energy and environment.
Other commercial nonmulberry silks are eri silk, tasar silk, muga silk, spider silk etc. Assam silk denotes the three major types of indigenous wild silks produced in assam golden muga, white pat and warm eri silk. The fact that sets this silk apart from all other versions is that it is totally golden yellow in color. Saturniidae an overview of distribution, biology and breeding.
All the strains of mulberry silkworm belong to the species bombyx mori. Antheraea assamensis, known as the muga silkworm as a larva and assam silk moth as an adult, is a moth of the family saturniidae. Muga antheraea assamensis is an economically important silkmoth endemic to the. Distribution of muga silkworm muga silkworm a assamensis occurs in the brahm from trtgh 4555 at joint graduate school of energy and environment. Wild silkmoths include tasar silkworm, erisilkworm, oaktasar silkworm and muga silkworm. Geographical isolation of this silkworm is indicative of its. Peigler abstract muga silk is the traditional heritage of assam. External morphology chorion of the eggs of muga silkworm antheraea assamensis helfer after treated with juvenile hormone iii and 20 hydroxyecdysion palash dutta. The term silk generally refers to the silk of mulberry silkworm because it contributes about 95 percent of worlds silk production. Silk a natural fibre silk often referred to as the queen of textiles is the strongest natural fibre lustrous, smooth, inherent affinity for dyes, vibrant colours, having high absorbent and light weight qualities excellent drape and elastic. The life cycle lasts for 50 days in summer and max. Isolation and molecular identification of microsporidian.
The silkworms feed on mulberry leaves and give rise to pupa. Comparative study on the rearing performance of muga. Dec 04, 20 introduction the golden silk muga is the pride of assam which is associated with assamese culture and tradition muga culture is the monopoly of assam muga is an endemic silkworm species prevalent in the brahmaputra valley and adjoining hills by virtue of its typical agroclimatic condition assam alone contributes 95% of the total muga raw silk. There are four varieties of silkworms in india, accordingly sericulture is classified into mulberry culture, tasar. The muga silkworm, antheraea assamensis, is exclusively present in the northeastern regions of india and rearing of this silkworm is a vocation unique to this region in the world. Muga silkworm belongs to lepidoptera of saturniidae family and, geographically isolated only to ne region of india.
Mulberry silk produced by mulberry silkworm is the 90% contributor of the worlds silk production. Muga silk worm is multivoltine and 56 crops are raised in a year out of which two commercial crops jethua. It feeds on two local species of shrubs machilus bombycina and litsae polyantha, producing a strong, golden yellow thread. The source of it is the muga silkworm which goes back to the age of the dinosaurs. A triangular shaped device made of bamboo strips for transferring of muga worms from one plant to another fig. Distribution of muga silkworm muga silkworm a assamensis.
The indian tasar silkworm antheraea mylitta is a natural fauna of tropical india, represented by more than 20 ecoraces. During day time and night time, some predator attacks on 3rd to 4th instar of muga silkworm. Due to the high incidence of disease and natural enemies, and variations in climatic conditions, the production of muga silk has recently declined dramatically. Silk gland fibroin from indian muga silkworm antheraea assama as potential biomaterial. The muga silkworm rearing is conducted throughout the year six times year on. Pdf silk gland fibroin from indian muga silkworm antheraea. Applied zoology gelecegi onemseyenler dernegi gonder. Comparative study on the rearing performance of muga silkworm. But a particular species of silkworm produces its specific silk. In this paper, composition of few secondary metabolites, viz. Circular bamboo device for hanging khorika for egg laying. Quantitative estimation of few secondary metabolites and hplc analysis of phenolic compounds were carried out from the leaves of som plant persea bombycina kost which is a primary metabolite of the shimmering yellow golden silk. Pdf muga silkworm, antheraea assamensis lepidoptera. Life cycle of eri and muga silkworm the full life cycle of eri and muga silkworm.
Gut microflora of muga silkworm synthesize digestive enzymes. One of the rarest silks in the world is the muga silk from assam. Fungal colonies cfu x 104g soil in tasar waste supplemented soil on 0 day with perionyx excavatus as test species fig3. All the strains reared at present belong to the species. The muga silkworm rearing is conducted throughout the. Studies on secondary metabolites of som persea bombycina. Antheraea assamensis helfer muga silkworm is an economically important endemic insect species.
Most of the studies are carried out on mulberry silk bombyx mori, however silk from indian nonmulberry silkworms are relatively unexplored. The muga silkworm is a single species with little genetic variation among populations, survives harsh climatic conditions and is subject to various diseases, pests and predators. Silk gland fibroin from indian muga silkworm antheraea assama. Lifecycle of silkworm with diagram biology discussion. Microsporidia are intracellular fungal parasites and they are the most common pathogens for sericulture. T able 2 performance of of different biotypes of muga. Pdf on apr 1, 2011, rajesh kumar and others published muga silkworm, antheraea assamensis insecta. Citation download citation kartik neog, balagopalan unni, and giasuddin ahmed studies on the influence of host plants and effect of chemical stimulants on the feeding behavior in the muga silkworm, antheraea assamensis, journal of insect science 113, 116, 1 october 2011. The silkworms are reared out door and as such are exposed to vagaries of nature. Muga silk is known for its natural yellowishgold tint that gets shinier with every wash.
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