Eri silkworm shows different rear-ing behaviour when reared on different food plants kumar. It is utilized for feeding muga silkworms for producing disease free eggs. From this collaborative process, it was established the study would explore: a an evaluation of the eri silkworm sustainabiltiy program; and b a lessons learned approach to inform future evidence-based practice. Of eri silk worm samia ricini, donovan in four different. Disease free layings of six eco-races of eri silkworm borduar, dhanubanga. This is ideally suited for rearing young as well as late age worms. The ecoraces were maintained in the gpb and the high yielding ecoraces of diphu eri silkworm was reared on different four accession of castor, ricinus communis linn, that is, acc. 502 The commercially exploited eri silkworm, samia ricini donovan is multivoltine and has several ecoraces. Khanapara, kokrajhar, mendipathar and titabar was procured from the central. 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. Eri silk assamese: ??? ???? Comes from the caterpillar of samia ricini.
Protein, total free amino acid and rna accumulated in the silk gland of eri-silkworm decrease drastically within 24 days of spinning. Jharkhand where eri silkworm are usually reared on different food plants. A randomized control trial was conducted to investigate the effects of combined concurrent training and eri silkworm pupae ingestion on resting and exercise fat oxidation fao, as well as energy expenditure, and cardiometabolic risk markers in obese adults. Bivoltine and multi-bivoltine silkworm rearing in karnataka, that the total annual operational costs incurred by small, medium and large farmers for multi bivoltine cocoon rearing was rs. Dpph, a stable free radical with characteristics absorption at 517 nm in methanol was used to study the radical scavenging effects of mpe of the muga and eri silkworm. Role of biotic factors: competition, parasitoids, pathogens and predators in mulberry ecosystem. Since the filament of the cocoons spun by these worms is. 55 1166 mt and muga negligible 122 mt of the total raw silk production in the country. 560 Dighloti is a hardy shrub and occurs in the jungles of upper assam. Lepidoptera: saturniidae is known to be reared in different parts of the world with diverse expectations for its silk fibre, food and biomaterials. Keywords: eri silkworm, strains, performance, cocoon. An ethnic palaung woman holds silkworm cocoons in wanpaolong. Tolerant to high temperature and low humidity conditions by continuously regime duanpen wongsorn1, 2 sivilai sirimungkararat1, 2, 3 and weerasak saksirirat2, 3 1entomology section, department of plant. Tensan, muga and eri silk varieties and several wild silk moths, actias aliena. Contribution of each of the silk produced is 7,tasar 7,eri 13 and muga is negligible. The diseases free eggs of different strains of philosamia ricini were washed with 5 formalin. Key words: eri silk protein, philosamia recini, free radical scavenging, dpph. Disease free laying of eri silkworm philosamia ricini were collected from sericulture rearing centre indore m.
Biochemical components such as proteins, amino acids free amino acids and lipids with reference to eri silkworm larvael humoral innate immune response. Ericulture eri silkworm farming is an agro-based traditional activity that has played an important role in generating income and employment for people. For proper utilization of eri silkworm pupae it is necessary to have a detailed knowledge of. Eri silkworm rearing method as suggested by chowdhury 182 was followed 7. Thirty-six sedentary, obese participants were divided into three groups: 1 placebo control group con, n12, 2 eri silkworm pupae. Eri silkworms have four stages: egg, larva, pupa encased in cocoon and adult moth. On the hatching of the larvae tender leaves were given to the egg box. The polyvoltine type of mulberry silkworm can only be found in the. The quality of the seed cocoon is greatly influenced by number of factors such as nutritious leaf, disease free laying, optimum temperature. The eri silkworm is the only completely domesticated silkworm other than. Eri silkworm cocoons e cocoons are natural composite biopolymers formed by continuous twin silk filaments fibroin bonded by sericin. The eri silkworm samia ricini donovan is polyphagous in nature and feeds on leaves of several food plants. 83
Potentiality of tapioca for rearing of eri silkworm during autumn season in assam. One of the groups was served as a control reared at 25. , plain white cocoon type ambagoan and brick red cocoon type lakhimpur using the most popular pch-111 hybrid leaves. The new ideas of prevention and control the silkworm diseases. The samples in the ninhydrin solution, the number of free amino. 056 in two favorable seasons, that is, autumn and spring. That the ferritin heavy chain subunit from eri-silkworm may play critical. 673 But muezart does not certify our silk as 100 cruelty-free. After collecting the disease free layings dfl the eggs were brought to the seri-biotech. Results: growth performance of rats fed either sunflower oil control or eri silkworm pupae oil experimental was comparable. The flat cocoon features a stable structure, good formation, uniform thickness, and manual control. Silkworm silk is a protein fibre composite comprising a.
Eri is a multivoltine silk spun from open-ended cocoons, unlike other varieties of silk. However, blue-zebra strain of eri silkworms fed on the leaves of castor. Saris or flowy dressescomes from the mulberry silkworm, bombyx mori. P also called as castor silkworm is a domesticated one reared on castor oil plant leaves to produce a white or brick-red silk popularly known as eri silk. The texture of the fabric is coarse, fine, and dense. On, edison omollo and others published eri silkworm rearing practices in kenya. 1 biology of mulberry silkworm the insect producing mulberry silk is a domesticated variety of silkworms, which has been exploited for over 4000 years. 0, grade iv-mixture of all to study the grainage performance. Silk fiber generally is produced by the mulberry silkworm, bombyx mori, which was domesticated. 251 Eri silkworm samia cynthia ricini is one of the most exploited. Eri silkworm pdf - free download as pdf file, text file. The present investigation involves collection, rearing, characterization of different eri silk strains for evaluation of superior variety.
Instruments are free from observational error, like. The indian tasar worm feeds on trees of terminalia species. The temperature and relative humidity were maintained at 252?C and 755respectively. The fifth instar larvae ricinus communis of eri silkworm insect were divided into 4 groups; each containing an equal number 50 of larvae in plastic trays. However, wild varieties, such as eri silkworms, have been. Disease free layings of eri silkworm were obtained from mangaldoi sericulture farm, assam. In contrast, the fatbody presents an augmentation of total protein concentration towards the end of the spinning process. Single shell weight, cocoon yield per disease free laying dfl. The disease free layings eggs of two eco races of eri silkworms were procured from regional eri. 304 We know that most silkworms are extracted from the open-ended cocoon and sold in the. 2 silk production potential the average annual silk. Eri silkworm samia cynthia ricini boisduval cocoon weight is varied from. The rearing of the eri silkworm was done by tray rearing method. Information on the concentration of free amino acids, in the. There are two other main types of silk worm used for ahimsa silk, samia ricini, the eri silk moth, and the various tussah / tasar moths, such as antheraea. The number of disease free layings and number of hired labour used annually. These active substances are lethal to eri silkworms and mamestra brassicae. Injection of recombinant baculovirus into hemocoel of eri silkworm larvae resulted in increasing levels of expression of vlps in the hemolymph from 3 to 7 days. Eri silk is a staple fiber, unlike other silks, which are continuous filament.
Disease free layings dfls of high yielding c2 breed of eri silkworm. Eri silk, among all non-mulberry silks, is exploited to the maximum extent accounting for 63 of total non mulberry silk production and 13 of the total silk production in india anonymous, 2014. Nutrient composition and protein quality evaluation of eri silkworm. Dfls of eri silk worm philosami aricini were collected from govt. E cocoons have an obvious multilayer 5 layers structure with an eclosion hole at one end and several air gaps between the layers, which. 360 Identity with the bombyx mori and danaus plexippus heavy chain subunits. After hatching the larvae were reared in laboratory condition under recommended condition at 25-27 0c, 75. Conditions sensing system for the rearing process of eri silkworm. Use of bio-digestor, vermi-wash, use of treated drainage water, silage preparation. After 3032 days, the silkworm crawls in search of a comfortable place among the leaves to spin its cocoon. Ablation experiments demonstrate that the mitotic activity of free hemocytes. According to sizes of cocoon harvested from nine locations were graded into four categories viz.
964 Rearing was done in the prevailing climatic condition and standard tray. All the strains reared at present belong to the species. 3: eri silkworm apart from the economic importance of eri silk, the pupae are consumed. Who is the author of the famous book wake up, india: a plea for social reform? This book will serve as a valuable source of information on the aspects of history, current scenario, non-mulberry cultivation, pruning, pests and diseases. 5 relative humidity and 12 h light/12 h dark condition. Hence, the experiments on rearing performance of eri silkworms feeding on different. 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 out for the continuous rearing. 2ml and 5ml/lit and untreated control on two eri silkworm strains viz. Silk protein fibroin of bombyx mori, commonly known as mulberry silkworm. Vol 4, no 3 2015 - articles evaluation of different strains of eri silkworms samia cynthia ricini b. A muga silkworm b eri silkworm c oak silkworm d bombyx mori 38. Nyishi, aka, sherdukpen, monpa, apatani, bugun and certain other communities in this region wear the eri clothes during religious community festivals and ritual events with traditional fervour. About the amount of free fatty acids present in a lipid. The hemolymph maintains constancy of these molecules with little variation. Only eggs of disease-free moths are kept for hatching. Ericulture is a household activity practised mainly for protein-rich pupae, a delicacy of the tribals. The newly hatched larvae of eri silkworm were reared on fresh leaves of castor-oil-plant. Due to its thermal properties it is warm in winter and cool in summer.
Eri silkworms are reared indoors and suffer far fewer losses. 281 , the primary host plant of eri silkworm samia cynthia ricini boisdual is greatly exploited for eri silk production in. Production of disease free, viable quality eggs in. Eri silkworm are generally influenced to a great extent by a variety of food plants and nutritive contents of the foli-age singh. Bombyx mori, the domestic silk moth, is an insect from the moth family bombycidae. Ericulture, the rearing of eri silkworm is also one of such socio-culturally valued practices. A complete life cycle of eri-silkworm lasts about 44 days in summer and 85 days in winter. Studies on biology of eri silkworm, samia ricini donovan on castor, ricinus communis under laboratory. Disease-free seed cocoons are obtained from grainages or agencies. As a kind of wild species, e cocoons have characteristics different from those of bombyx mori cocoons b cocoons. Fifth instar larvae of eri silk worm philosamia ricini.
Keywords: ericulture; eri silkworm; kenyan silk; silk rearing introduction kenya has the potential of producing different varieties of silk, although the. A wild one and a domesticated one bred on castor leaves. The larvae were fed with castor leaves harvested from iasst silkworm. Hz was applied to the free induction decay prior to fourier transformation. Finally the relative impacts all the four different types of food plant. 409 The larval growth rate and rearing per-formance of eri silkworm. Eri silkworms samia cynthia ricini, saturniidae, with a short growth cycle. In thailand, eri silkworms are fed cassava leaves as. Eri silk these belong to either of two species riciniand philosamia namely samia ricini. Antioxidant activities of silk sericin from silkworm. It produces brick red and white erisilk, the fabric made from this silk is held in high esteem. Hence the moths are allowed to emerge before commencing reeling. Eri silk is darker and heavier than other silks and blends well with wools and cotton. The silkworm process and the sustainability program over two days. Total free sugars, protein, alkaline and acid phosphatases, citrate and inorganic phosphorus level in fat body of philosamia ricini eri-silkworm. Rearing of eri can be started when castor leaves are available aplenty. Silk from bombyx mori mulberry silkworm has been the most commonly used silk for centuries 5.