{"id":230,"date":"2013-05-01T14:08:08","date_gmt":"2013-05-01T14:08:08","guid":{"rendered":"https:\/\/silks.csb.gov.in\/aizawl\/?page_id=230"},"modified":"2023-03-13T11:15:35","modified_gmt":"2023-03-13T11:15:35","slug":"allied-sectors-occupations","status":"publish","type":"page","link":"https:\/\/silks.csb.gov.in\/coochbehar\/allied-sectors-occupations\/","title":{"rendered":"Allied Sectors &amp; Occupations"},"content":{"rendered":"<div style=\" width:760px; height:650px; overflow:auto; margin:0px; padding: 0px 15px 0px 15px;\">\n<h1 align=\"center\">Allied Sectors and Occupations<\/h1>\n<h4>Silkworm Seed\/Egg production<\/h4>\n<h4>Mulberry Seed\/Egg production<\/h4>\n<h5>Disinfection of grainage and implements<\/h5>\n<ul>\n<li>Bamboo made house with thatched roof and mud-plastered wall is preferable for grainage.<\/li>\n<li>Disinfect the grainage rooms and appliances prior to commencement of operation.&nbsp;<\/li>\n<li>Wash the rooms and appliances with 5% bleaching powder solution before one day.<\/li>\n<li>Dry the appliances in sun shine for 3-4 hours before one day.&nbsp;<\/li>\n<li>Disinfect the rooms and appliances with a mixture of 2% formalin, 0.5-1% lime and 0.5% detergent solutions @ 1L\/ sq.m after one day.<\/li>\n<\/ul>\n<h5>Pupal examination<\/h5>\n<ul style=\"margin:0; padding-left:17px;\">\n<li>Separate out the melted, flimsy and good cocoons.<\/li>\n<li>Take out the gut portion and observe under microscope.&nbsp;<\/li>\n<li>Reject the lot in case there is incidence of pebrine.<\/li>\n<li>Disinfect the contaminated room before the arrival of new lots.<\/li>\n<\/ul>\n<h5>Preservation and protection of seed cocoons<\/h5>\n<ul>\n<li>Immediately after the receipt of seed cocoons, spread them on trays in a single layer to facilitate good aeration.<\/li>\n<li>Reject the seed cocoons which are melted, uzi infested, flimsy and not conforming to the characteristics of parent races.<\/li>\n<li>Preserve only the healthy seed cocoons in trays for further processing.<\/li>\n<li>Provide cross ventilation in the preservation room.<\/li>\n<li>Maintain temperature at 25 &plusmn; 1&#730;C, relative humidity of 75 &plusmn; 5%, 16 hour light and 8 hour dark conditions in the cocoon preservation room.&nbsp;<\/li>\n<li>Maintain complete darkness one day prior to emergence to avoid irregular emergence of moths.<\/li>\n<\/ul>\n<h5>Early eclosion\/ artificial eclosion\/ forced eclosion of moths <\/h5>\n<ul>\n<li>This helps in determining the disease freeness of a batch and helps in minimizing the loss to grainage.<\/li>\n<li>For early emergence of moths, 50-60 seed cocoons are taken from individual lots and placed into an artificial eclosion box.<\/li>\n<li>Maintain the temperature at 32-33 0C with the help of thermostat. This accelerates the development of pupae and moth emerges early.<\/li>\n<li>Examine the early emerged female moths of respective lots are under microscope to know the disease freeness of lots.&nbsp;<\/li>\n<\/ul>\n<h5>Synchronization of emergence of moths, pairing, depairing and oviposition<\/h5>\n<ul>\n<li>Keep the cocoon preservatio0n room dark before the expected day of emergence of moths.<\/li>\n<li>In case of variation in development of male or female pupae, the development of male pupae can be arrested by preserving them at 5-7 0C and 75 \u00b1 5% relative humidity for 3-4 days.<\/li>\n<li>Only healthy and active moths are taken for pairing.<\/li>\n<li>After 1-2 hours of emergence, the male and female moths of respective combination are allowed for 3.5 to 4 hours of pairing.&nbsp;<\/li>\n<li>At the time of depairing, the male and female moths are to be moved side way so that the moths are separated easily without causing injury to reproductive organs.&nbsp;<\/li>\n<li>The mated female moths are taken in a separate container and induced for urination.&nbsp;<\/li>\n<li>Moths are placed on egg sheet and covered with cellules and kept in semi dark condition for oviposition.&nbsp;<\/li>\n<li>Under proper preservation (5-7 0C), male moths can be used for second pairing by giving 1-2 hours rest.&nbsp;<\/li>\n<li>Throughout the process of pairing, depairing and oviposition, optimum temperature of 25 &plusmn; 1 0C and relative humidity of 75 &plusmn; 5% should be maintained.<\/li>\n<\/ul>\n<h5> Moth examination<\/h5>\n<ul>\n<li>Examine the mother moth either individually or in mass for pebrine disease.<\/li>\n<\/ul>\n<h5>Surface sterilization of eggs<\/h5>\n<ul>\n<li>Dip the egg sheets in 2% formalin for 10-15 minutes. This helps in removal of pathogens adhering to the egg shell and further prevents secondary contamination.<\/li>\n<li>Wash the eggs in formalin solution. It helps in firm adherence of eggs to the sheet.<\/li>\n<\/ul>\n<h5>Incubation eggs<\/h5>\n<p>Maintain temperature of 25 \u00b1 1&#730;C, relative humidity of 75 \u00b1 5%, 16 hours of light and 8 hours darkness.<\/p>\n<p><\/p>\n<p>During the pinhead stage or before two days of hatching, maintain total darkness for uniform development of embryo and hatching of larvae at a time on a single day.<\/p>\n<p><\/p>\n<h5>Source:<\/h5>\n<p><i><\/p>\n<p>1. Package of practices of Muga, Eri and Mulberry Sericulture for North Eastern region of India, 2005, Central Muga Eri Research &#038; Training Institute, Lahdoigarh, Jorhat, Assam.<br \/>\n2. Directory of Sericulture Technology 2008, Karnataka State Sericulture Research and Development Institute, Bangalore- 560 062.<\/p>\n<p><\/i><\/p>\n<h1 align=\"center\">Muga Seed\/Egg Production<\/h1>\n<p><\/p>\n<h5>Grainage hall<\/h5>\n<ul>\n<li>Bamboo made house with thatched roof and mud-plastered wall is preferable for grainage.<\/li>\n<li>All round varanda is suitable for keeping the temperature down.<\/li>\n<\/ul>\n<h5>Material required for grainage operation<\/h5>\n<p><b>Chemicals:<\/b> Formalin, Bleaching powder, Lime powder, Potassium hydroxide.<br \/>\nEquipment and Accessories: Spray machine, BOD incubator, Microscope, Micro-slides &amp; cover slip, Moth crushing set, Mask and Gloves, Moth cage, Foam pad, Measuring cylinder, Balance (readability- 0.1 g) Scissor, Muslin cloth, Bucket , Thread, etc.<\/p>\n<h5>Disinfection<\/h5>\n<ul>\n<li>Disinfection should be done 3-4 days prior to receipt of seed cocoons and immediately after completion of grainage operation.<\/li>\n<li>Drench the walls of the hall and grainage appliances with 5% bleaching powder solution.<\/li>\n<li>Seal the grainage hall airtight and put all appliances inside.<\/li>\n<li>Apply fresh disinfectants in the grainage hall and keeps the room closed for 24 hours.<\/li>\n<li>Amount of disinfectants to be used @ 1 l\/ 2.5 sq. m floor area.&nbsp;<\/li>\n<li>Open the hall one day prior to consignment of seed cocoons.<\/li>\n<li>Use mask and hand gloves during disinfection.<\/li>\n<\/ul>\n<h5>Selection, collection and transportation of seed cocoons<\/h5>\n<ul>\n<li>Select well-formed healthy cocoons for seed production (Male: 4-4.5g, Female: 5-6g) at a female:male ratio of 60:40.<\/li>\n<li>In case of cocoons taken from the early part of spinning, keep the early spun cocoons in BOD incubator for 4-5 days at 10 0C to synchronize moth emergence.<\/li>\n<li>Before selection of seed cocoons, pupal gut test must be done to ensure disease freeness of the lot.<\/li>\n<li>Cocoons from highest ripening day or one day prior\/ after are preferable.<\/li>\n<li>Transport seed cocoons after complete pupation avoiding direct sunlight, rain, jerk, etc.<\/li>\n<\/ul>\n<h5>Storage of seed cocoons<\/h5>\n<ul>\n<li>Keep seed cocoons in moth cages in single layer to facilitate proper aeration and easy emergence.<\/li>\n<li>Maintain proper aeration in the grainage hall.<\/li>\n<li>Temperature between 26 to 28 0C and relative humidity of 80&plusmn;5% are suitable for grainage operation.<\/li>\n<\/ul>\n<h5>Moth emergence and coupling<\/h5>\n<ul>\n<li>Emergence usually takes place at dusk and continues till midnight.<\/li>\n<li>Place emerged male and female moth in mating cage at 1:5 ratio for easy coupling and put the cage in a well aerated dark and cool place.<\/li>\n<li>Allow 7-8 hours of coupling. Female moth should be put into netlon oviposition pouch individually (9 x 3 x 3 cm in size) for egg laying.<\/li>\n<\/ul>\n<h5>Oviposition<\/h5>\n<ul>\n<li>Arrange the pouch in a rack (50 cft in volume ) in the grainage hall.<\/li>\n<li>Allow to lay egg for 3 days.<\/li>\n<\/ul>\n<h5>Moth examination<\/h5>\n<ul>\n<li>On the 4th day, resort to individual mother moths examination for detection of pebrine disease.<\/li>\n<li>Conduct two-tier examination of mother moths crushing the midgut of the mother in 2% Potassium solution.<\/li>\n<li>Burn perbrinzed and other diseased moth along with diseased eggs and Kharika.<\/li>\n<\/ul>\n<h5>Surface sterilization of eggs<\/h5>\n<ul>\n<li>Wash the eggs with soap solution and then carry out surface sterilization by putting the eggs in 2% formaldehyde solution for 2-3 minutes.<\/li>\n<li>After sterilization, wash the eggs in running water till smell of formalin goes off.<\/li>\n<li>Dry the eggs in shade.<\/li>\n<\/ul>\n<h5>Incubation of eggs<\/h5>\n<ul>\n<li>Keep the dried eggs in BOD incubator at 26&#61617;1 oC with 85&#61617;5% RH.<\/li>\n<li>Put some saturated solution of calcium chloride at the bottom of the BOD incubation to keep the RH within the required range.<\/li>\n<\/ul>\n<h5>Egg transportation<\/h5>\n<ul style=\"margin:0; padding-left:17px;\">\n<li>Avoid stuffing of egg packets inside bags\/poly bags.<\/li>\n<li>Transport dfls in separated perforated paper packets.<\/li>\n<li>For transportation in bulk quantity, make bags for 50 dfls with muslin cloth\/ cotton mosquito net and fit individual bag in a wooden frame.<\/li>\n<li>Carry the bags in plastic baskets avoiding heat, jerk, etc.<\/li>\n<\/ul>\n<h5>Hygiene<\/h5>\n<ul >\n<li>Burn dead and melted cocoons.<\/li>\n<li>Dispose-off pierced cocoons as soon as possible.<\/li>\n<li>Dispose the crushed materials, moths, grainage waste, etc. in soak pit treating with 5% bleaching powder solution or burn them.<\/li>\n<li>Wash hands with alkaline soap and then with 2% bleaching powder solution before entering into grainage hall.<\/li>\n<li>Keep a foot mat soaked with 5% formalin in front of the grainage hall\n<\/ul>\n<h5>Source:<\/h5>\n<p>1. Package of practices of Muga, Eri and Mulberry Sericulture for North Eastern region of India, 2005, Central Muga Eri Research &#038; Training Institute, Lahdoigarh, Jorhat, Assam.<\/p>\n<p><\/p>\n<p>2. Directory of Sericulture Technology 2008, Karnataka State Sericulture Research and Development Institute, Bangalore- 560 062.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Allied Sectors and Occupations Silkworm Seed\/Egg production Mulberry Seed\/Egg production Disinfection of grainage and implements Bamboo made house with thatched roof and mud-plastered wall is preferable for grainage. Disinfect the grainage rooms and appliances prior to commencement of operation.&nbsp; Wash the rooms and appliances with 5% bleaching powder solution before one day. Dry the appliances [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_links_to":"","_links_to_target":""},"_links":{"self":[{"href":"https:\/\/silks.csb.gov.in\/coochbehar\/wp-json\/wp\/v2\/pages\/230"}],"collection":[{"href":"https:\/\/silks.csb.gov.in\/coochbehar\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/silks.csb.gov.in\/coochbehar\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/silks.csb.gov.in\/coochbehar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/silks.csb.gov.in\/coochbehar\/wp-json\/wp\/v2\/comments?post=230"}],"version-history":[{"count":18,"href":"https:\/\/silks.csb.gov.in\/coochbehar\/wp-json\/wp\/v2\/pages\/230\/revisions"}],"predecessor-version":[{"id":734,"href":"https:\/\/silks.csb.gov.in\/coochbehar\/wp-json\/wp\/v2\/pages\/230\/revisions\/734"}],"wp:attachment":[{"href":"https:\/\/silks.csb.gov.in\/coochbehar\/wp-json\/wp\/v2\/media?parent=230"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}