Eri silkworm rearing pdf files

Download silkworm rearing pdf ebook silkworm rearing silkworm rearing ebook author by pangchuan wu silkworm rearing eb. An alternative source of income to enhance the livelihoods of smallscale farmers and tribal communities b. Eri silk is darker and heavier than other silks and blends well with wools and cotton. Determination of optimal temperature for production of.

Chawki means the first two stages of silkworm rearing. Silkworm rearing methods for beginners agri farming. Leaf preservation leaf preservation is more important to prevent withering of leaves. 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 properties. The project which began in february 2010 has five stated outputs. It is purely a traditional and a leisure time occupation. The first two are agricultural and the last one is an industrial component. After cocooning you can remove them and spin some silk, or you can wait until they hatch they will hatch in about a month. These include moths that have escaped from cultivation or were introduced and. Further silkworm pupal oil was analyzed with model name as nicolet 6700 trade mark spectrometer and gcms. Indian journal of sericulture central sericultural research. The left files read 1 files from all samples were pooled into one large left. India continues to be the second largest producer of silk in the world.

Life cycle and morphology of non mulberry silkworms dr. An improvement on the aseptic rearing of the eri silkworm. Rearing of muga silkworm muga silkworm rear in out door on tree. Located in small towns or suburban areas of cities. Eri silk it is spun from cocoons of silkworms belonging to saturniidae family, which are fed on castor leaves. However, the survival from larva 1 5 instar adult, rearing with rayong 72 was the highest. In commercial races of silkworm, moulting occurs four times, lasting for 1530 hours. Pdf rearing performance of eri silkworm philosamia ricini in. The quality of cocoon eri silkworm is a polyphagous, multivoltine worm whose primary host is castor. The silkworm first makes a support then spins the cocoon. Although there are several commercial species of silkworms, bombyx mori the caterpillar of the domestic silkmoth is the most widely used and intensively studied silkworm. Due to its thermal properties it is warm in winter and cool in summer. The present study revealed that castor genotypes have strong influence on eri silkworm rearing performance. Eri silkworm rearing practices in kenya edison omollo oduor, lucy ciera, vijay adolkar and odoch pido abstract ericulture eri silkworm farming is an agrobased traditional activity that has played an important role in generating income and employment for people living in rural areas in some parts of the world.

The vernacular as well as the scientific name of the insect denotes its connection with the era or the castor plant which is its principal food plant. Rearing technology of eri silkworm samia cynthia ricini under varied seasonal and host plant conditions in tamil nadu k subramanianan1, n sakthivel2 and s m h qadri3 research paper the eri silkworm, samia cynthia ricini highly preferring castor as a host plant followed by tapioca. What does do you mean by the word silkworm farming. Multivoltine 14 days 10 days 350500 eggs 3035 days 5 instars 12 september 20 11 44 summer85 days winter.

Jan 28, 2015 this is a video clip produced by trainee of 3 days training on communicating science through video presentations. The plinth area 10 m x 5 m size rearing house having tin or thatch roofing with 1. Rearing of eri can be started when castor leaves are available aplenty. Silkworm moths only live for a few days and must mate as soon as they emerge from their cocoons. To increase the production level up to 4a grade mulberry bivoltine silk from about. Saturniidae is known to be reared in different parts of the world with diverse. Rearing of eri silkworm samia cynthia ricini boisd.

Euphorbiaceae is an important nonedible oilseed crop, the leaves. The silk is not reelable like bombyx mori, the mulberry silkworm, so it is spun into a yarn which is both soft and durable. Sericulture instructional cum practical manual, vol. Vishnuvardhan reddy abstract castor, ricinus communis l.

Samia ricini, the eri silkworm how do silkworms make silk. The sericulture is an important cottage industry, but is now the basis of large industries in china, japan, india and some european countries, where the silkworm, bombyx mori is reared on mulberry leaves on a mass scale to get raw silk from the cocoons of the caterpillars of the moth. It is the art and science of silkworm breeding for producing silks. Significant difference was not noticed between independent and sequential rearing. This region provides favorable conditions to these valuable silk insects. There are 26 ecoraces of eri silkworm like borduar, khanapara, kokrajhar, titabar, diphu, genung, nongpoh etc. For this purpose fao approved a project entitled supporting sericulture rehabilitation in cambodia from its technical cooperation programme. Studies on larval weight and shell ratio of eri silkworm philosamia ricini on castor, kesseru and treated kesseru by foliar spray 5 p a g e the mean data of shell ratio sr of eri silkworm on different food plants in different rearing season are presented in table 1. Erisilkworm rearing conditions and experimental design. The white silk fabric as white as the cultivated silk eri silk is the product of the domesticated silkworm, philosamia ricini that feeds mainly on castor leaves. Mulberry silk the systematic cultivation of mulberry, the food plant of bombyx mori, is the first step in the production of mulberry silk. They also keep eri seed cocoons in bamboo made moth cage chakori pera. Click download or read online button to get sericulture manual 2 silkworm rearing book now. The blog linne eri silkworm on vimeo eri silk handeye.

Effect of botanical insecticides on the growth and silk. Silkworm rearing is an extensive monthlong exercise starting from egg stage and terminating in adults laying eggs and dying their natural death. It is an agro based industry comprising three main components. Ericulture eri silkworm farming is an agrobased traditional activity that has played an important role in generating. Darrahs account, eri also called endi silk is obtained from a silkworm known as attaccusricini. Sericulture manual 2 silkworm rearing download ebook pdf. Molecular characterization and functional analysis of the vitellogenin receptor from eri silkworm. Effect of cassava varieties with different cyanide contents. Eri is the widely spreading most popular silkworm species among commercially exploited vanya silkworms. They also fed on kesseru, bor kesseru, gomari, payam, topioca. Which are used for rearing of eri silkworms during the scarcity of. Feeding of different host plants on economic traits of eri silkworm 52 effective rate of rearing err, cocoon weight, pupal weight, shell weight, and shell ratio percentage were recorded.

Cassava leaves defoliation for eri silk worm rearing. Among castor genotypes fed to erisilkworm, abaro fed worms showed medium to maximum records of matured larval weight 8. The silkworm rearing house should be located on an elevated place to avoid moisture migration from floor to rearing house, provide good cross ventilation, facilitate drainage of the water at the time of cleaning and disinfection. The female silkworm moth has tiny wings and a large abdomen. Silk was believed to have first been produced in china as early as the neolithic period.

The results of study showed that eri silkworm growth performance measured as cocoon weight, pupa weight and shell weight, egg number and hatchability were significantly p rearing rooms were adjusted to 25 degree centigrade figure 1. No content page no 1 introduction 3 2 sericulture 4 3 types of silkworm 5 4 silk 8 5 rearing of silkworm 9 6 mounting 12 5 conclusion 14 6 reference 15. Sep 21, 2015 however, due to use of different varieties of castor leaves, eri silkworms are susceptible to several growth related problems. These are attacus receni, b, the eri silkworm moth and antherea paphia, b, the tassar silkworm moth. It is also practiced in few district of the neighboring states mainly arunachal pradesh, manipur, meghalaya, nagaland and other non traditional states of india like andhra pradesh, bihar, chhattisgarh, gujrat, jharkhand, orissa, tamilnadu, utrakhand, west. Sericulture, or silk farming, is the cultivation of silkworms to produce silk. Effect of cassava varieties with different cyanide. In thailand, eri silkworms are fed cassava leaves as well as castor leaves. Eri silkworm it is a domesticated species and is reared on castor plants, so they are called castor silkworms. Pdf on jan 1, 2010, vadamalai elangovan and others published rearing performance of eri silkworm philosamia ricini in monsoon season of uttar pradesh.

Applied zoology gelecegi onemseyenler dernegi gonder. Seeds of four high oil yielding castor hybrids varieties viz. Samia cynthia, the ailanthus silkmoth, is a saturniid moth, used to produce silk fabric but not as. Training was conducted by icarzpdiii, barapani, meghalaya. Studies on larval weight and shell ratio of eri silkworm. If the chawki worms are not reared properly, the later stages will result in crop losses. This is a video clip produced by trainee of 3 days training on communicating science through video presentations.

Unlike other kind of silk, this cannot be reeled and hence it is only spun. The total area under mulberry in india is 1,20,567 hectares, of which only 28,781 hectares is. During 4th and 5th instars once in a day in case of shelf rearing. Mses rajani bala and ulfath saba for their initial help in the work and messrs. Pdf the eri silkworm, samia cynthia ricini highly preferring castor as a host plant followed by tapioca and also the suitability of other. A comparative study on the rearing performance of six. Historically this is the highly desired fibre which has been used extensively for apparels, home.

Disinfecting the silkworm rearing house, its surrounding and appliances before brushing. Silkworm rearing and silk weaving, called sericulture, is an environmentally sustainable agroindustrial activity practiced in four major regions globally, with the highest production in asia and the pacific. Screening for eri silkworm samia ricini donovan ecoraces. When it comes to the definition of the silkworm, it is the larva or caterpillar of the bombyx mori moth. Hence, chawki is the most crucial period of silkworm rearing that demands optimum temperature and humidity, hygienic conditions, quality tender leaf, good rearing facilities and above all technical s. The following information is all about silkworm rearing. Seed preparation most of eri farmers prepare eri seed by themselves. Effect of cocoon characters, copulation and oviposition devices on the grainage performance of samia cynthia ricini boisduval k subramanian1, n sakthivel2 and s m h qadri2 research paper eri silkworm samia cynthia ricini boisduval cocoon weight is. Eri and tasar silk to increase from 9,075 mts to 11,500 mts. The rearing method was modified from sirimungkararat et al.

Feeding of different host plants on economic traits of eri silkworm 54 leaves during 4th instar and 5th instar periods recorded the mean cocoon weight of 3. Samia ricini, or the eri silkworm, is raised in india and parts of the orient for its silk. Developing post cocoon technologies and machineries in. Saturniidae is known to be reared in different parts of the world with diverse expectations for its silk fibre, food and biomaterials. 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. May 09, 2015 44 silkworm rearing technology in glossy leaf method selection, the mature leaves remained on the mulberry twigs after chawki rearing are fed to iv and v instar worms pluck ing from top to bottom.

Hence, selection of castor genotypes for rearing eri silkworm based up on rearing performance of eri silkworms is very important in order to get better egg production, larval development and cocoon yield. Mahesha h b associate professor department of sericulture yuvarajas college, university of mysore, mysore, india. Life cycle of eri silkworm philosamia ricini fig 1. It starts at hatching of eggs and goes to the 4 th molt stage. Eri the word eri is derived from sanskrit word eranada or endi which mean castor plant is a multivoltine silk spun from openended cocoons, unlike other varieties of silk. North east india is considered as the centre of origin for eri silkworm, samia ricini donovan. Assam produces as much as 90% of eri silk in the country by rearing eri silkworms on castor leaves. The larval growth rate and rearing performance of eri silkworm have also been studied extensively. Eri culture is an age old agrobased small scale industry of the region. However, in case of floor or shoot rearing, bed cleaning should be done once in each instar. Commercial rearing of silk producing silkworm is called sericulture. House any building or thatch which is well ventilated may be used for rearing the worms, but mudwalled thatched houses are the best as they are cool in summer and warm in winter season. Mulberry cultivation and silkworm rearing a full guide. The food provided to silkworms during their rearing affects larval growth, survival rate, cocoon parameters and silk quality gomma, a.

Sericulture and silk production the ancient technique of rearing silkworms for production of silk yarn and weaving it into expensive cloth is widely practiced today. India has the unique distinction of being the only country producing all the five kinds of silk mulberry, eri, muga, tropical tasar and temperate tasar. Eri yarn is produced in assam, bihar, manipur, meghalaya, nagaland and west bengal. A complete life cycle of eri silkworm lasts about 44 days in summer and 85 days in winter. Download this ebook file at no cost and this file pdf available at friday 21st of october 2011 02. After coupling of moths, they allow the female moths to lay egg on a piece of cloth. To carry out the present investigation the seeds eggs of eri silkworm were collected in the month of may 2011 from the directorate of sericulture, khanapara. The eri silk worm is the only completely domesticated silkworm other than bombyx mori. Eri silk fabric is a boon for those who practice absolute nonviolence, not using any product obtained by killing any animal. Eri silk rearing for economic development of north eastern.

Share your knowledge share your word file share your pdf file share your ppt file. Effect of botanical insecticides on the growth and silk production of ambagoan and lakhimpur strains of eri silkworm, samia cynthia ricini boisduval v. The silkworm pupal oil was extracted by using maceration method. The eri silkworm, samia ricini donovan is a multivoltine, domesticated insect that can be reared on diverse host plants. The business of rearing silkworm or silkworm rearing is known as the silkworm farming as in this business, the growing of silkworm is included. Nonmulberry sericulture is universally known as forest or wild seri culture. This book will useful for silkworm growers, entomologist, researcher, students and sericulture industries. The huge foliage obtained from cassava at the time of removing weak branches 56 months after plantation and during tuber harvest are. Effect of temperature on the silk production of the eri. Eri culture has been proven beneficial and gainful employment to the castor farmers, as 30% of defoliation will not affect the seed yield. Silk fiber generally is produced by the mulberry silkworm, bombyx mori, which was domesticated nearly 2,000 years ago in china. Raising eri silkworms is referred to as ericulture.

The present investigation involves collection, rearing, characterization of different eri silk strains for evaluation of superior variety. Directional selection was undertaken with the batches reared at 421c and 50 5. During this course, they pass through five larval instars intervened by four moults, cocoon and pupal stage. Pdf rearing of eri silkworm samia cynthia ricini boisd. Techniques of rearing silkworm rearing of eri silkworm, samia ricini donovan rearing house. Eri silkworm rearing practices in kenya journal of entomology and.

Sericulture has become an important cottage industry in. The eri is a multivoltine and produces 6 or 7 broods in a year. Pdf evaluation of different castor genotypes based on. Rearing of eri silkworm upper subansiri, arunachal pradesh. Eri silkworm is one of the domesticated silkworm races under self rearing in assam.

Traditional practices and terminologies in muga eri culture. Disinfecting the rearing room and appliances before the rearing starts. Analysis of chemical composition of mulberry silkworm pupal. They are reared in specially made they are reared in specially made trays in rooms with controlled temperature and. Eri silk is a staple fiber, unlike other silks, which are continuous filament. The texture of the fabric is coarse, fine, and dense. All branches of sericulture require food plants and manpower. Kan liang mai eri phua kan phatthana isan eri silk rearing for economic development of north eastern thailand. The 5 minutes varity gave the maximum survival percentage of 92%. Silkworm farming guide and tips process and profit details what is silkworm farming. Molecular characterization and functional analysis of the. Nov 14, 2016 the hilly areas of this region have ample scope for expansion of tapioca cultivation nnot only as a source for supplementary diet for the people but also increasing the quantum of leaf for eri silkworm rearing and eri silk production. Rearing performance of erisilkworm samia cynthia ricini.