Silkworm moths go through four stages of development egg, larva, pupa and adult as do the. Jan 28, 2015 this is a video clip produced by trainee of 3 days training on communicating science through video presentations. Silkworm is domesticated over thousands of years and the sole food for the growth of silkworm is mulberry leaf. The silk is not reelable like bombyx mori, the mulberry silkworm, so it is spun into a yarn which is both soft and durable.
Nutrient properties of eri and muga silkworm pupae the nutrient properties of eri and muga silkworm pupae are given in the table 1. In this study, we assembled a threedimensional automated warehouse type silkworm rearing machine, to enable auto mechanization of rearing work. 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. After cocooning you can remove them and spin some silk, or you can wait until they hatch they will hatch in about a month. Biological and molecular characterization of silkworm. Rearing performance of erisilkworm samia cynthia ricini. These climatic factors also influence the various nutritional factors.
Secrets of rearing silkworms for higher profits daily nation. Silk products and silkwormrearing technologies came to play a critical role in chinese trade networks and in the interaction of cultures among different countries. Rearing and grainage performance of indian tropical tasar. Under ideal conditions silkworm completes cocoon formation in 2428 days from the day of hatching. Review of literature 14 biosystematics and bioassay in food plants of eri silkworm, philosamia ricini hutt chowdhury 2004 recorded the origin, evolution and distribution of silkworm species found in the eastern region of india. Whole life cycle spans through 4555 days with 1012 days of egg stage, 2530 days of larval stage, 23 cocoon spinning days, 57 days as pupal duration and 45 days in adult stage. We offer a wide selection of silkworm products, from live silkworms to silkworm eggs and everything needed to keep them fat and happy. Silk was believed to have first been produced in china as early as the neolithic period. During summer season water may be sprinkled inside the. Techniques of rearing silkworm rearing of eri silkworm, samia ricini donovan rearing house. Silkworms come from the eggs of the silkmoth bombyx mori.
Raising eri silkworms is referred to as ericulture. He rears the bombyx mori species of silkworm, which has been domesticated in china. Bombyx mori, the domestic silk moth, is an insect from the moth family bombycidae. Despite the fact, there were hardly any crcs operating. A silkworm s preferred food is white mulberry leaves, though they may eat other mulberry species and even osage orange. By the han dynasty 206 bce9 ce, silk production was so important to international trade that the camel caravan trails used to connect changan with europe were named the silk. Muga silkworm belongs to lepidoptera of saturniidae family and, geographically isolated only to ne region of india. Raising silkworms is easily done and the caterpillars have many uses.
Six shelves in 4 rows type rearing machine has been constructed and control program was coded on visual basic control language. Here, chawki refers to the young silk worms reared from hatching to 2 ndmoult stage. The variations in the environmental conditions day to day and season to season emphasize the need of management of temperature and relative humidity. Silkworm seeds are produced in the grainage and therefore grainage is the first and the most important aspect which needs special attention. The plinth area 10 m x 5 m size rearing house having tin or thatch roofing with 1. 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. Therefore, dead silk worms in cocoons seem to occur at a limited. Systematic and methodological grainage not only minimize larval morality due to diseases but also results in vigorous progenies.
In the beginning, the female silk moth lays hundreds of eggs. He stated that the actual rearing of silk worms began about. Indian silk indian agricultural resources sericulture. Limited institutional capacity to supply healthy silkworm eggs and poor silkworm rearing activities at the farm level, results in silkworm mortality around 50 percent. A scientific method of young silkworm rearing is important to raise a healthy cocoon crop. Rearing of eri silkworm upper subansiri, arunachal pradesh. The larval development and and chhattisgarh states of india, which is considered to their feeding status have impact on genital development, be the best secondary food plant for tasar silkworm,a. Disease, lowquality silkworm variety, and rudimentary techniques cause cocoon production to remain low. This is a video clip produced by trainee of 3 days training on communicating science through video presentations.
This editorial position requires careful reading, revising, and correcting. 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. Effect of different mulberry varieties on rearing of. The present study revealed that castor genotypes have strong influence on eri silkworm rearing performance. Biological and molecular characterization of silkworm strains. Life cycle of a silk worm most commercial silk is mulberry silk that is produced from cocoons of the mulberry silkworm moth,called bombyx mori, and comes mainly from china and india. Management of climatic factors for successful silkworm. In commercial races of silkworm, moulting occurs four times, lasting for 1530 hours.
One silkworm rearing tub one petri dishone tube containing eggs one mesh 1020 silkworm eggs preprepared silkworm food forceps this guide getting started once you receive your silkworm rearing kit you need to pop the silkworm food into a fridge to keep it fresh and place the mesh in the bottom of the rearing tub. During 4th and 5th instars once in a day in case of shelf rearing. Rearing experiments of the silkworm bombyx mori on artificial diets. Development of an automated warehouse type silkworm. As per example humidity in the rearing room may affect the types of leaf fed to silkworm larvae. 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. Silkworms bombyx spp the history of silk making and silkworms.
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. A man with great vision, he has strived hard to do his bit to improve the lot of fellow farmers. When first laid, they are yellow, afterward they change to a dark slatecolor. Septicemia occurrence in cocoons as related to silkworm rearing. It is an economically important insect, being a primary producer of silk. The present paper deals with the rearing of silkworm larvae on artificial diets to know the possibility of practical use of artificial diets in the sericulture. Silkworm moths only live for a few days and must mate as soon as they emerge from their cocoons. Silkworm rearing effectively means the culturing of five larval instars as other stages like egg, pupa and adults are nonfeeding stages. The seasonal differences in the environmental components considerably affect the genotypic expression in the form of phenotypic output of silkworm crop such as cocoon weight, shell weight, and cocoon shell ratio. There were statistically differences among eri and muga silkworm pupae in terms of moisture, protein, crude fat. Rearing experiments of the silkworm bombyx mori on. Muga silkworm cultivation has been an age old practice, it is obviously environment controlled and the rearing performance is quite different in each season.
Eri silkworm fed on abaro registered maximum err 74. Factors affecting on quality muga silkworm antheraea. Mupade international journal of plant protection october, 2010, vol. Silkworms as pets you can easily raise silkworms by yourself. As worms, they have five ages, one is the chrysalis, and one as the miller. A silkworms preferred food is white mulberry leaves, though they may eat other mulberry species and even. These eggs are stored over a clean paper or piece of cloth. Perfect for raising a small number of silkworms from scratch at home, including. Sericulture has been practiced for at least 5000 years in china the silkworm bombyx mori, latin for silkworm of the mulberry tree is, technically, not a worm. The female silkworm moth has tiny wings and a large abdomen. Factors affecting on quality muga silkworm antheraea assamensis helfer seed crop production. Floor rearing this is another method of rearing silkworms on fixed rearing seats. Silkworm rearing is differentiated into young instar or chawki rearing up to 2 nd moult and late instar rearing based on their management requirements. The silkwormfoodplantinteraction was studied with six different food plant species viz.
Sericulture, or silk farming, is the cultivation of silkworms to produce silk. Terminalia tomentosa, terminalia arjuna, terminalia belerica, terminalia chebula of. There were statistically differences among eri and muga silkworm pupae in terms of moisture, protein, crude fat, total ash, crude fibre, carbohydrate p silkworm. Success of silkworm rearing largely depends on careful grainage operation. Silkwormrearing in indiakarnataka state, where the temperature ranges from 1631 degree centigrade, enjoys favorable climatic conditions for rearing the silkworm bombyx mori throughout the year, whereas in west bengal, the multivoltine silk worm rearing is practiced even under adverse conditions of temperature. The farmers then keep the eggs under the accurate temperature and humidity at a clean place. Silkworm seed technology directorate of sericulture. Muga silkworm antheraea assamensis helfer indoor rearing. Muga silk has a special status due to its natural golden yellow colour. The silkworm first makes a support then spins the cocoon.
Jun 01, 2018 secrets of rearing silkworms for higher profits. Pdfdateien in einzelne seiten aufteilen, seiten loschen oder drehen, pdfdateien einfach zusammenfugen oder. He is now fully involved in agriculture dividing his time between sericulture as well as in the dairy sector. Aug 31, 2019 silk products and silkwormrearing technologies came to play a critical role in chinese trade networks and in the interaction of cultures among different countries. Silk worm rearing tray national innovation foundationindia. The rearing of crossbreeds was conducted during 202014 following the standard package of rearing practices 10 at csrtimysore. Muga silk worm is multivoltine and 56 crops are raised in a year out of which two commercial crops jethua. The quality of these chawki worms is the crux of successful silkworm rearing. Effect of different mulberry varieties on rearing of silkworm bombyx mori l.
Domestic silk moths are closely dependent on humans for reproduction, as a result of millennia. Training was conducted by icarzpdiii, barapani, meghalaya. Full text of sericulture training manual see other formats sericulture training manual b rows with paired plants fao agricultural services bulletin sericulture training manual fao agricultural services bulletin 80 sooho lim, youngtaek kim, sangpoong lee sericulture experiment station suwon city, republic of korea injun rhee kyungpook national. Revalidation of bed disinfectant practices followed by. In addition, direct silk fibre deposition onto a scaffoldin structure not only bypasses. Jul 28, 2009 amazing silk processing form silkworm silk farm. Samia ricini, or the eri silkworm, is raised in india and parts of the orient for its silk.
Before the commencement of silkworm rearing, the rearing room and appliances were thoroughly cleaned and the floor was washed using 5 per cent bleaching powder solution. 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. Silkworms arent normally used as pets, but there are some perks from owning them. Silkworm food is a must, silkworms will only eat a mulberry based diet. It is the larva or caterpillar of a moth in the family bombicidae a silkworms diet consists solely of mulberry leaves the silkworm bombyx mori is entirely dependent on humans for. Management of nutritional and climatic factors for silkworm rearing. The silkworm is the larva or caterpillar of a silk moth. Based on rearing and reeling performance, two crossbreeds viz. However, in case of floor or shoot rearing, bed cleaning should be done once in each instar. Kamble central sericultural research and training institute sreerampura, mysore570 008, india abstract young age silkwor m rearing center popularly called as chawki rearing center crc. Maintenance of temperature of 27 28 c and relative humidity of 8090 % are ideal. The silkworm is a wellknown lepidopteran, and it has been used as a model system to provide a rich repertoire of information related to genetic mutations that affect morphology, development, and behavior arunkumar et al. Saturniidae is known to be reared in different parts of the world with diverse expectations for its silk fibre, food and biomaterials.
Silkworm books in chiang mai, thailand, is seeking an inhouse englishlanguage editor and proofreader for a fulltime position beginning by may 1, 2019. Silkworms infect ed with diseases at the larval stage are almost unable to produce cocoons. In their native lands, they are handfed mostly castor bean and tapioca leaves, but will also eat ailanthus and ligustrum. An experimental rearing of tropical tasar silkworm, antheraea mylitta drury was conducted to study silkwormfood plantinteraction and thereby to search for an alternate silkworm food plant.
1631 99 987 1062 982 697 139 160 1562 1301 308 1309 1076 594 405 1556 1276 673 1080 1542 1101 1352 1194 220 244 702 1118 545 776 439 695 115 1363 1170 693 341 891 840 910 434 452 422