Late age silkworm rearing pdf

Late age silkworm rearing central sericultural research and. Reeling, twisting and weaving ppt convergence of sericulture with iwmp ppt silkworm diseases ppt pdf. The increased larval weight recorded in fs2 might be due to the suitability of s36 leaf for youngage worm growth. Leaf saving is about 25% in iv age and 10% in v age. Model curriculum national skill development corporation. Rear young silkworms as well as late age silkworms under strict hygienic condition. Silkworm rearing methods for beginners agri farming. Jan 03, 2012 silkworm cultivation dead and diseased worms on the mountages should be removed before harvest.

Rearing of young age silkworm was conducted as per the method described by rajan et al. Construct rearing house and perform prearrangements for rearing silkworms. In this district there are 3750 shoot rearing houses. The young age silkworm rearing or chawki rearing is a vital aspect of. Marketing of cocoons should be done on the sixth day 8th day for bivoltine hybrids. Department of sericulture, amaravati, andhra pradesh or ap gramasachivalayam is set to hire eligible candidates with must have passed intermediate vocational course in sericulture b. Dark condition, room temperature and 65% rh is required for incubation of silkworm eggs. Rearing of mulberry silkworm rearing house for 200250dfls. Let us understand the different methods of late age silkworm rearing. Bhutia and others published shoot rearing practices for late stage rearing find. Revalidation of bed disinfectant practices followed by. The conditions like temperature and relative humidity rh should be maintained 24c to 27c and 75% to 85% respectively. These fungi are used for the manufacture of medicine for heart ailments. Avoid high temperatures 2835degc, low rearing temperatures 1020degc and rearing humidity less than 70%.

Provide sufficient windows and ventilators for free circulation of air inside the rearing house. Training to new sericulturists under cdp scheme and cluster promotion programme. Resham mitra have to supply late age silkworm to the sericulture farmers door step on the demand and requirement of sericulture farmer. Late age silkworm rearing 10 characteristics of late age silkworms, rearing methods, tray rearing, shelf rearing, floor rearing, advantages and disadvantages of shoot feeding and floor rearing, environmental conditions for silkworm rearing, leaf harvest, transportation and. Pdf knowledge level of silkworm rearers of jammu division. May 09, 2015 thus labour re quirements for cleaning and feeding are minimized. Influence of early and late mounting on economic parameters.

The total increase in weight from hatching to the end of vth instar is about 7,000 to 10,000 times. Construct rearing house of 50 feet x 20 feet x10 feet size on an elevated and shady place to accommodate 200250 dfls. Training to bivoltine sericulturists and new sericulturists. Sericulture is the process of reeling silk from the cocoon of the silkworm. For the purpose of giving training to the staff and sericulturists, the government sericulture training school was established at hosur during 1973. Disinfect silkworm rearing house, its surrounding and appliances before brushing. All agronomical practices were followed as per recommended package of practices in the field during rearing period. Sericulture technology late age silkworm rearing late age silkworm rearing the third, fourth and fifth instar larvae are considered as late age worms. Comparative study on performance of tasar silkworm. On the 1st day of the fifth instar, the larvae were inoculated by dipping in. Bamboo trays are more common in karnataka and west bengal. After feeding on mulberry leaves for several days, silkworms of the 5th instar stop feeding and begin to spin cocoon. One year chawki rearing were conducted with the interval of 10 days. Silkworms are reared in bamboo trays which are arranged one over the other in tiers on rearing stands.

Rearing stand iron for lateage silkworm shelf rearing. Majority of silkworm rearers in anantapur conduct late age rearings from 3rd to final age in shoot rearing stands. Further, enough space must be available to carry out leaf preservation, chawki rearing, late age rearing, and molting and also its effective cleaning and disinfection. The silkworms grow very rapidly from age to age and increase many times their weight and size from the previous instar.

Pdf the present study was carried out to know the knowledge level of silkworm rearers of jammu division. Rearing stand iron for late age silkworm shelf rearing. 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. Apr 29, 2020 twentysix bivoltine silkworm bombyx mori l. The length of the rearing house can be calculated as follows. The minimum width of a rearing house for late age rearing should be 5. Late age rearing 52 silkworm rearing technology 56. Sericulture state schemes in kerala 2012 malayalam ppt pdf late age silkworm rearing ppt mulberry cultivation ppt mulberry pest and diseases ppt pdf economics of sericulture in kerala ppt post cocoon sector. Sericulture is a greek word where sericos means silk and culture means to rear. Made up of ms square iron conduit pipe size 3 cm x 3 cm and 1. The optimal temperature for the late age silkworm rearing is about 26c for 3rd instars larvae, 25c for 4th instars and 24c for 5th instars larvae. Nov 30, 2017 how to start sericulture farming in india. Studies on symptomological and economic parameters of silk.

Fifty per cent of the labour input is utilized during the last seven days of rearing. Jul 28, 2009 amazing silk processing form silkworm silk farm. Shoot rearing for late age worms silkworm larvae consume 85%. Ap gramasachivalayam village sericulture assistant recruitment 2019. The youngage silkworms can withstand to high humidity conditions than laterage worms and under such condition, the growth of worm is vigorous. Incubation hatching different methods of br ushing young age silkworm rearingmethods of rearing feeding young age worms moulting cleaning and spacing organization and cooperative. Pdf shoot rearing practices for late stage rearing researchgate.

Pdf on feb 27, zafar iqbal buhroo and others published rearing performance of some popular bivoltine silkworm bombyx mori l. Provide 3 feet verandah surrounding the rearing house. Manual on young age silkworm rearing central sericultural. Silkworm pupal powder can be easily digested and absorbed by human bodies. The silkworm rearing house must have a controlled environment for rearing chawki and late age silkworms. Chopped mulberry leaves were fed to the chawki worms and whole leaf feeding was followed for late age worms. Lime powder is dusted in the rearing bed to reduce the humidity to 6065% rh to facilitate the moulting process. Comparative study on performance of tasar silkworm, antheraea. Silkworm rearing is conducted in 35 villages by 2 farmers and the cocoon productivity in the district is 57. The size of the silkworm rearing house depends upon the quantum and type of rearing. The average cocoon production was in range of 32 to 45kg100dfls while the ratio varied from 16. It is the combination of both agriculture and industry.

In this method only matured larvae are picked by hand. Silkworm cultivation dead and diseased worms on the mountages should be removed before harvest. The optimum humidity conditions required for different early age worms and late age worms are as described in table 1. The young age silkworms can withstand to high humidity conditions than later age worms and under such condition, the growth of worm is vigorous. Arrangement of mulberry twigs in shootbranch method a.

Shoot rearing for late age worms silkworm larvae consume 85% of their food requirement during fifth instar. Ensure disinfection two days before brushing of worms. It directly influences the physiological functions of the silkworm. Number of tiers length of rearing house in feet for 4 tier shoot rearing stand 0. Morus serrata, silkworm, feed introduction only 30 countries are in the list of raw silk producer by mulberry. Then after, follow the following instruction in this rearing business. New technology for silkworm rearing central sericultural. Late age silkworm rearing 15 objective, introduction, late age silkworms, rearing methods, tray rearing, shelf rearing, advantages and disadvantages of shoot feeding, environmental conditions for silkworm rearing, leaf harvest, transportation and preservation. In another hand, traditional practices of direct tasar silkworm rearing methods were followed as per the standard procedure. Resham mitra have to provide proper guidance for late age silkworm rearing to the. 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.

Labour requirements are reduced to 60% in iv age and 50% in v age. Shoot rearing big shoots harvested as such are straightaway fed to the silkworms. The late age silk worm supplied to the sericulture farming by the resham mitra will be of good quality only. Resham mitra have to provide proper guidance for late age silkworm rearing to the sericulture farmer registered by them.

Introduction mounting operation is one of the times bound and labour intensive activities in silkworm rearing. Tips to start sericulture farming in india silkworm. Management of climatic factors for successful silkworm. During late fifth instar, after completing the feeding silkworms reaches the ripened stage ready tospin silk. Name the different methods of late age silkworm rearing. Proper hygiene and disinfection at regular interval of time are also required. Resham mitra have to provide technical guidance about sericulture farming to the sericulture farmer. Moulting period lasts for about 24 hrs and care should be taken not to disturb silkworms during this period. However, the size of the rearing house for silkworm depends on the rearing type and the quantum. Rearing stand iron rearing stand iron for late age tender. Mar 11, 2015 further, enough space must be available to carry out leaf preservation, chawki rearing, late age rearing, and molting and also its effective cleaning and disinfection. The optimum humidity conditions required for different earlyage worms and lateage worms are as described in table 1.

Tips to start sericulture farming in india silkworm rearing. The third, fourth and fifth instar larvae are considered as late age worms. Mulberry cultivation and silkworm rearing a full guide. Rearing of late age worms from the 3rd instar in the chawki rearing, these worms become voracious feeders. Observations recorded larval duration the time taken by the silkworm from hatching to spinning was taken as larval duration and expressed in days. Pdf skill gap analysis in silkworm rearing among farmers. During the year 20052006, sericulture training school was registered under tamilnadu societies registration act 1975 with a change in the name as, tamilnadu sericulture training institute. Also, make sure of sufficient space needed to handle out the leat preservation, chawki or young age worm rearing, late age worm rearing and for the molting. The rearing room and equipment should be disinfected.