Rearing house. During extreme weather conditions i.e. Andhra Pradesh Incubation Process 9. Muga silkworm cultivation has been an age old practice, it is obviously environment controlled and the rearing performance is quite different in each season. Harvest cocoons only after completion of pupation (7th day in summer and 10th day in winter). 6 SILKWORM REARING TECHNOLOGY 1.4.1. The larvae are covered in tiny dark hair. Over and above, the time taken to make one single saree is about two months right from rearing the silkworm to the finished product. The larvae of these moths feed on som ( Machilus bombycina ) and sualu ( Litsaea polyantha ) leaves. Before 4 days of brushing, 0.01% Sodium Hypochlorite solution should be sprayed on the foliage of chawki rearing plot twice at an interval of 24 hours as disinfectant. 1 0 obj Lower Assam enjoys a salubrious climate for rearing of muga silkworms throughout the year. Muga rearing Farmers rear muga silkworm in natural som plantation commonly known as Somoni. Muga silkworm is a holometabolous insect passing through complete metamorphosis from egg to adult. The female silkworm lays 300-400 eggs and insulates them on the leaves of the mulberry tree. Rearing of Muga silkworm. BRUSHING OF LOOSE EGGS The eggs are spread evenly in one layer in the box and kept in black box at blue egg stage. Muga silkworm rear in out door on tree. In sericulture, the silkworm rearing process begins with the laying of eggs by the female silk moth. <> The quality seed known as Disease Free Layings (DFLs) are prepared in these centres and supplied to the farmers for rearing. West Bengal, Choose state and district Sri Dulal Goswami, Dr. NI Singh, Dr. K. Neog, Central Muga Eri Research & Training Institute, Lahdoigarh, Jorhat, Assam. The golden colour and shine of the fabric is one of the most unique features of Muga silk. The rearing was conducted with three treatments, 1) complete indoor rearing up to spinning of worms (T-1); 2) indoor rearing up to 2nd in star and then transferring the worms to standing trees (T2) and 3) complete outdoor rearing (Control). Rearing house should be well ventilated and fly proof. name to view SILKS, Central Silk Board, Minisitry of Textiles, Government of India, Bangalore, Silkworm Food Plants Production Technologies, Improved Varieties of Silkworm Food Plants, 4th week of February / 1st week of march. Several workers experimentally practiced indoor rearing of muga silkworm applying different types of rearing devices and, some of them reported effective over outdoor rearing. The Muga silkworm is a bit more independent. Brush newly hatched worms on 90 days old foliage (120 days old in winter) under nylon net in between 5 to 7 AM on the opposite side of the sun during summer and towards sun during winter. Eri silkworms are reared indoor. Muga silk worm is multivoltine and 5-6 crops are raised in a year out of which two commercial crops (Jethua: May- June and katia: October- November), two pre-seed crops (Jarua: December- January and Aherua: June- July) and two seed crops (Chotua: February- March and Bhodia: July- August. Rearing of Muga silkworm Muga silkworm rear in out door on tree. Dust bleaching powder and slaked lime mixture (1 : 9) @ 200 g/m2 in the rearing plot atleast twice at an interval of 3-4 days before 8-10 days of brushing. 3 0 obj The rearing performance of CSR-18 and CSR-19 breeds of silkworm was studied on S-41, S-54, M-5 and V-1 during rainy season. An icon used to represent a menu that can be toggled by interacting with this icon. <> Himachal Disinfection and prophylactic measures. Sericulture is an important agro-based cottage industry which provides gainful employment to the rural section of the society. Silkworm raisers collect the silk unraveling the cocoons. Use disinfected Chaloni for transfer of worms. In about 10-14 days each of the eggs hatches and produces a larva which is also known as a caterpillar. Chhatisgarh EkuÖEAü¢oŠýÔÙsw'ùg¨4=ØÓÁb8J¾w3TJžkßûçP–Ë™?TéÀûe8Šôâ%=›†qì‡é*_yÃxðq˜–þ0x}˓ÐϜå¿T/lâGzï|*È̆?ö-Lc_«4ÃQHçÎ[œßÖĕg/fƒ@ U. Transfer only the healthy and uniformly mounted worms to new plants. The actual weaving process takes about one week to 10 days to complete. Rearing of Silkworm: In the beginning, the female silk moth lays hundreds of … The time taken to weave a single Muga silk saree is roughly two months, from rearing the silkworm to obtaining the finished product. 2 0 obj Madhya Pradesh Muga silkworm belongs to Lepidoptera of Saturniidae family and, geographically isolated only to NE region of India. Jharkhand Silkworm Rearing: The following information is all about Silkworm Rearing. Muga silk worm is multivoltine and 5-6 crops are raised in a year out of which two commercial crops (Jethua: May- June and katia: October- November), two pre-seed crops (Jarua: December- January and Aherua: June- July) and two seed crops (Chotua: February- March and Bhodia: July- August. hailstorm, heavy rain, whirl wind etc., brush worms indoor for 2-3 days in twigs kept in wet sand or in bottles containing water. Allow the worms to spin cocoons in bamboo box type mounts (capacity 1500 worms/mount). Orissa Uttar Pradesh Sericulture. The life cycle lasts for 50 days in summer and max. Uttrakhand This area has identified as seed zone by Central Silk Board. During the rearing period, they restrict entry of people to the rearing plot as they believe that the evil sight of outsider may cause Mukhloga disease (Flacherie, a bacterial disease of muga silkworm… Select well formed good cocoons for seed production as well as for reeling purpose. Muga silk is the product of the silkworm Antheraea assamensis endemic to Assam. One tree can be utilized for two rearing in a year alternately during spring and autumn, thus one full grown tree can yield 1000 cocoons in a year and 5 trees are required to produce 5000 cocoons which yield one kg. Assam Muga silkworm, Antheraea assamensis Helfer, generally reared outdoor on standing host trees for which it is always under pressure of vagaries of weather conditions causing substantial loss. 150 days in winter. The silkworm seed production centers are referred as grainages. Typically, 300-500 eggs are obtained from one female silk moth. Overcrowding of larvae in the chaloni as well as in the new plants should be avoided. Tripura This process is divided into several stages but typically starts from cultivating silkworm on mulberry leaves. of muga silk. Full text of "Sino-Iranica; Chinese contributions to the history of civilization in ancient Iran, with special reference to the history of cultivated plants and products" See other formats Introduction To Silkworm Rearing. %PDF-1.5 4 0 obj What is silkworm rearing? %µµµµ Wrap the tree trunk with oil coated polythene sheet to prevent the worms from crawling down and predators from climbing up the trees. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 453.6 652.08] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Karnataka Sort out good, flimsy, Uzi infested cocoons after harvesting. Bihar Scanning electron microscopy on the postembryonic development of the mouthpart sensory structures of the Muga silk moth, Antheraea assamensis revealed the presence of a variety of sensilla. They eat a variety of leaves from trees from the laurel and magnolia family and are usually raised directly on the trees until it’s time for them to make their cocoons. Fungal Diseases: (A) Muscardine: Fungal diseases of silkworm are called muscardine where the body of larvae gets mummified due to deposition of calcium oxalate and hence the disease is also called ‘calcino’. xœ¥\ëÛF’ÿnÀÿ¿\ Í&Ù|ÁàfÆãx²~äf& ²I° %Ž†ˆ^+QöÎýõW¿ªn’-‰’‚Ë®c²»ºººÞUMåõ庮‹qí}ÿýë˺.ÆOåÄûýõÃrõçë‡çUùú§bZ-ŠºZ...¼«7×ÞÕÃ˯ß*/óƒØ{x|ùByýOyyî‡Iì%AîǙ÷0ù"ð¦ø×/_x£À‚< ½‡ñïƒýkø§÷ðãË7„ø, When it comes to the definition of the silkworm, it is the larva or caterpillar of the “Bombyx mori” moth. Punjab The weaving process of the Muga silk saree alone takes up one week to ten days to complete. Only during the egg-laying process, rearing is done indoors on small sticks or sun grasses. Usually pre-seed and seed crops encounter adverse climatic condition resulting in heavy loss during the early stages due to environmental rigours, disease incidence and infestation of pests and predators. well, it is part of sericulture in which worms are raised for the production of raw silk. Directory of Sericulture Technology 2008, Karnataka State Sericulture Research and Development Institute, Bangalore- 560 062. Arunachal Pradesh KEY WORDS: Indoor, Outdoor, Rearing, Som, Soalu, Wooden tray, Larvae, Instars, dfls. The silk produced is known for its glossy, fine texture and durability. One tree can be utilized for two rearing in a year alternately during spring and autumn, thus one full grown tree can yield 1000 cocoons in a year and 5 trees are required to produce 5000 cocoons which yield one kg. In this process, silkworms are reared at appropriate temperature and humidity to get silk threads from cocoons. Prune 15-20% of the plants at 6 feet height 4 months prior to rearing for early stage and 5 months prior to rearing for late stage worms. Muga rearing is the toughest of all types of silkworm rearing because it has to be done outdoors on the trees themselves. Kerala Consider only microscopically examined disease free eggs and incubate at 26±1 °C and 85±5 % relative humidity. Jammu & Kashmir the most important factors to be considered in Muga silkworm cultivation regardless of indoor or outdoor rearing. The types, distribution pattern of the sensilla remained almost the same in the different larval stages except for the number and dimension in some cases. Muga Silkworm and Muga Silkworm life cycle pabitrakalitatulika@gmail.com 2018-08-31T04:01:00-07:00 5.0 stars based on 35 reviews Muga Silkworm The Muga Silkworm has its natural habitat in the deep forests of the North East India. The silkworms are reared out door and as such are exposed to vagaries of nature. Even today muga is the monopoly of Northeast India, particularly Assam and Meghalaya. These eggs (laid on a paper/cardboard sheet) are then disinfected with the help of a 2% formalin solution. The process of silk production is known as sericulture. Muga moth (“Muga Polu’ in Assamese) also has the same life cycle as other silk­worms, i.e., egg, larva, pupa and adult. >Choose State Keywords: Lepidoptera, Saturniidae, muga silkworm, Antheraea assamensis, rearing, improvement, disease, grainage assam and meghalaya muga rearing is the toughest of all types of silkworm rearing because it has to be done outdoors on the trees themselves rearing house is a part of sericulture where silkworms are raised ... silkworm rearing in sericulture the silkworm rearing process begins with the laying of … Causative organisms: Consider only 1-3 days hatched worms for rearing. Package of practices of Muga, Eri and Mulberry Sericulture for North Eastern region of India, 2005, Central Muga Eri Research & Training Institute, Lahdoigarh, Jorhat, Assam. endobj endobj Special features. Nagaland While brushing, carrying capacity of the plant should be judged properly so that larvae may achieve 4th stage in the same tree without transfer. Mizoram Periodical spray of sodium hypochlorite (0.01%) twice in each instar helps to reduce the possibility of outbreak of bacterial and viral diseases. Disinfection before and after each rearing is considered the key for a … The larva begins molting when the head turns darker and may molt about four times after which the body turns sli… The plinth area 10 m x 5 m size rearing house having tin or thatch roofing with 1.5 m varandah all around is ideal for accommodating 100 dfls for commercial silkworm rearing per crop. The healthy and uniformly mounted worms to new plants should be given to keep sufficient space the... Actual weaving rearing process of muga silkworm of the mulberry tree bombycina ) and sualu ( Litsaea )... Eggs ( laid on a paper/cardboard sheet ) are then disinfected with the laying of eggs by the silkworm! Be avoided prevent the worms from crawling down and predators from climbing up the trees themselves for seed centers! 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