The eri silkworm, samia cynthia ricini highly preferring castor as a host plant followed by tapioca and also the suitability of other alternative host has been found. The food provided to silkworms during their rearing affects larval growth, survival rate, cocoon parameters and silk quality gomma, a. The eri silkworm which lives upon castor, is a domesticated form, cultivated in warm damp places. Mulberry pat, eri, muga and oak tasar silk are produced. Eri silk is darker and heavier than other silks and blends well with wools and cotton. Eri silk, no doubt, is also produced in bihar but assam is the largest producer of eri and munga silk. A complete life cycle lasts about 45 days at 30c and 85 days at 20c life cycle of eri silkworm. Rearing of eri silkworm samia cynthia ricini boisd. Silkworm rearing methods for beginners agri farming. 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. 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.
Darrahs account, eri also called endi silk is obtained from a silkworm known as attaccusricini. Assam is the only place in the world where all commercially exploited varieties of silk viz. However, due to the dry environmental conditions of the companys location, it had to look for a more adaptable breed of silkworm. The texture of the fabric is coarse, fine, and dense. Influence of new host plants on larval duration and total life cycle of eri silkworm during novdec and janfeb. Its cocoon has loose texture and silk is not reliable, hence, this is carded and spun. Eri silkworm, food plants, larval growth, effective rate of rearing.
The farmers then keep the eggs under the accurate temperature and humidity at a clean place. Eri silkworm, philosamia ricini following kjeldhal method is. Eri silkworm rearing eri culture is mostly confined to the brahmaputra valley of assam. 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. India continues to be the second largest producer of silk in the world. Effective rate of rearing err, which reveals percentage of the number of cocoons harvested to number of larvae brushed, has also showed a significant difference when eri silkworms were fed on different castor genotypes. When the worms were reared by feeding the leaves of castor up to 3rd instar and interchanging with tapioca leaves during 4th and 5th instar resulted in better eri silk recovery. The eri silkworm rearing at a normal temperature 252 c. There were statistically differences among eri and muga silkworm pupae in terms of moisture, protein, crude fat, total ash, crude fibre, carbohydrate p worm is multivoltine and 56 crops are raised in a year out of which two commercial crops jethua. It is ideal for rural areas as it requires low capital, is labor intensive thus creates jobs and it is commercially attractive. Applied zoology gelecegi onemseyenler dernegi gonder. 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. Pdf rearing performance of eri silkworm philosamia.
A study in papumpare district article pdf available january 2016 with 3,637 reads. This region provides favorable conditions to these valuable silk insects. Pdf rearing of eri silkworm samia cynthia ricini boisd. When it comes to the definition of the silkworm, it is the larva or caterpillar of the bombyx mori moth. Effect of temperature on the silk production of the eri. The following information is all about silkworm rearing. Production of quality eri silkworm cocoon and seed. A study on the effective implementation of sericulture and. Eri silkworm fed on abaro registered maximum err 74. However, bluezebra strain of eri silkworms fed on the leaves of castor ecotype possessing accession no. Philosamia ricini eri silkworms produce a white or brick red silk known as eri silk or endi or errandi silk.
Former gunma sericulture research station life cycle of erisilkworm the life cycle of erisilkworm has four stages egg, larvae, pupa encased in cocoon and adult moth. Sep 21, 2015 however, due to use of different varieties of castor leaves, eri silkworms are susceptible to several growth related problems. Mousumi mondal, dhattatreya hosagrahar, srinivas bandlamuri venkataramana. Eri silkworm is one of the domesticated silkworm races under self rearing in assam. These eggs are stored over a clean paper or piece of cloth. 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. The result revealed that eri silkworm was continuously. In their native lands, they are handfed mostly castor bean and tapioca leaves, but will also eat ailanthus and ligustrum. Mar 11, 2015 mulberry silkworm rearing, being completely domesticated, demands specified environmental conditions like optimum temperature 2428oc and relative humidity 7085%. The mulberry is a silkworm breed widely grown by farmers in kenya.
Eri silkworm pdf silk pupa free 30day trial scribd. Techniques of rearing silkworm rearing of eri silkworm, samia ricini donovan rearing house. The rearing method was modified from sirimungkararat et al. Determination of optimal temperature for production of quality eri silkworm cocoon and seed endale hailu1,2,3, yuehua zhang1,2 and workneh ayalew3 1jiangsu university of science and technology, china 2sericultural research institute, chinese academy of agricultural sciences, china 3icipe ethiopia yesh project, ethiopia submission. Pdf evaluation of different castor genotypes based on. Samia ricini, or the eri silkworm, is raised in india and parts of the orient for its silk. 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. A part of foliage is used for eri silkworm rearing to generate additional income to the farmers without affecting yield and income of main produce sakthivel et al.
Egg stage is lasting for 910 days, larval stage which is 2428. The seed organizations have been playing a major role in supplying quality seed to meet the demand for seed at various levels 15. Training was conducted by icarzpdiii, barapani, meghalaya. 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. Comparative studies of eri silkworm philosamia cynthia ricini reared on artificial diet and natural castor leaves ricinus communis linn authors. Apr 27, 20 a nonbloomy red variety of castor nbr1 was found promising in terms of growth, yield and palatability and was recommended for eri silkworm rearing. Pdf the eri silkworm, samia cynthia ricini highly preferring castor as a host plant followed by tapioca and also the suitability of other.
The characteristics of the eri, muga and pat silk and their rearing methods have been elaborately described in british records. Directional selection was undertaken with the batches reared at 421c and 50 5. In addition, high leaf yielding varieties like nbg, kalpi6, dch177 and gch4 may also be raised. The present study revealed that castor genotypes have strong influence on eri silkworm rearing performance.
Apr 02, 20 abstractthe eri silkworm, samia cynthia ricini highly preferring castor as a host plant followed by tapioca and also the suitability of other alternative host has been found out for the continuous rearing during unseason of crop. The castor silkworm belongs,to the species sarnia cynthia ricini. Eri silkworm, philosamia ricini donovan is a multivoltine sericigenous insect and largely. Traditional practices and terminologies in muga eri culture. Pdf on aug 23, 2016, edison omollo and others published eri silkworm rearing practices in kenya find, read and cite all the research you need on researchgate.
Determination of optimal temperature for production of quality eri. 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. Rearing performance of erisilkworm samia cynthia ricini. Rearing performance of the eri silkworm, samia cynthia ricini.
Nutrient properties of eri and muga silkworm pupae the nutrient properties of eri and muga silkworm pupae are given in the table 1. Estimation of crude and purified protein from deoiled pupae. Directional selection was undertaken with the batches reared at 421c and 505. So, tosheka introduced eri, a new breed of silkworm which can survive the dry conditions associated with makueni. The recommended package of practices was followed for cultivation of castor under irrigated condition anonymous, 2000. Determination of optimal temperature for production of quality eri silkworm cocoon and seed endale hailu1,2,3, yuehua zhang1,2 and workneh ayalew3 1jiangsu university of science and technology, china 2sericultural research institute, chinese academy of agricultural sciences, china 3icipe ethiopia yesh project, ethiopia. It is, therefore, necessary to evolve measures for economic cooling through a selection of proper material for wall and roof fabrication, the orientation of the building, using. The present investigation involves collection, rearing, characterization of different eri silk strains for evaluation of superior variety.
Rearing of eri silkworm upper subansiri, arunachal pradesh. Both processes are described, with the drawbacks of bunch rearing. Eri culture has been proven beneficial and gainful employment to the castor farmers, as 30% of defoliation will not affect the seed yield. A comparative study on the rearing performance of six. Mulberry cultivation and silkworm rearing a full guide. Seed preparation most of eri farmers prepare eri seed by themselves. Estimation of crude and purified protein from deoiled. Applied zoology sericulture tumul singh department of zoology, udai pratap autonomous college, varanasi221002 contents. Seeds of four high oil yielding castor hybrids varieties viz. In a second step, sericulture practices were taken to farmers in the field on a pilot basis in maharashtra, gujarat, and u.
The vernacular as well as the scientific name of the insect. They also keep eri seed cocoons in bamboo made moth cage chakori pera. Eri silk is a staple fiber, unlike other silks, which are continuous filament. Sep 12, 2014 eri silkworm it is a domesticated species and is reared on castor plants, so they are called castor silkworms. Raising eri silkworms is referred to as ericulture. Its life history and rearing technique is almost like that of tasarworms except the foodplants, which are in this, casesom, champa and moyankuri.
This book will useful for silkworm growers, entomologist, researcher, students and sericulture industries. They will be a couple of days behind all the way through their life cycle. Jan 28, 2015 this is a video clip produced by trainee of 3 days training on communicating science through video presentations. Eri silkworm, samia cynthia ricini, rearing bed spacing, economic traits, cocoon yield, silk ratio. 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.
The larval growth rate and rearing performance of eri silkworm have also been studied exten. Baif adopted a multipronged strategic approach by introducing a. Pdf on aug 23, 2016, edison omollo and others published eri silkworm rearing practices in kenya find, read and cite all the research you. Rearing technology of eri silkworm samia cynthia ricini. In the beginning, the female silk moth lays hundreds of eggs. After coupling of moths, they allow the female moths to lay egg on a piece of cloth. Bunch rearing and tray rearing are the two principal methods for eri silkworm rearing, with farmers usually combining both methods.
Its life history resembles that of the mulberry worm. Package and practices for cultivation of eri silkworm host. It is ideal for rural areas as it requires low capital, is labor intensive thus creates jobs and it. The silk is not reelable like bombyx mori, the mulberry silkworm, so it is spun into a yarn which is both soft and durable. Pdf eri silkworm rearing practices in kenya researchgate. All of these biological aspects were much affected by temperature. Online assignment topic seri culture linkedin slideshare.
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