Sericulture Cocoon Yield Calculator

Work out sericulture cocoon yield instantly with clear inputs, formula shown and shareable results.

About Sericulture Cocoon Yield Calculator

Cocoon yield is quoted per 100 disease-free layings — 55-70 kg for bivoltine hybrids in good rearing conditions. Renditta is the kilograms of cocoon needed for one kilogram of raw silk, and a lower renditta means better cocoon quality; 6-7 is good, above 9 is poor.

Formulas

Cocoon yield

Cocoon (kg) = DFLs x yield per 100 DFLs / 100

Silk equivalent

Raw silk = cocoon weight / renditta

Worked example

With the default values below, Sericulture Cocoon Yield Calculator returns Cocoon Yield of 60.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Disease-Free Layings Rearedminimum 1 DFLs: 100 DFLs
Cocoon Yield Per 100 DFLsminimum 0 kg: 60 kg
Rendittaminimum 1 kg cocoon per kg silk: 7 kg cocoon per kg silk
Cocoon Priceminimum 0 per kg: 480 per kg

Results

Cocoon Yield: 60.00
Raw Silk Equivalent: 8.571
Cocoon Revenue: $28,800.00
Cocoon Per DFL: 0.6000

Step by step

1Values used
2Cocoon yield
3Silk equivalent
4Cocoon Yield= 60.00
5Raw Silk Equivalent= 8.571
6Cocoon Revenue= 28,800.00
7Cocoon Per DFL= 0.6000

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 4 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

What most affects yield per 100 DFLs?

Mulberry leaf quality and quantity, rearing house temperature and humidity, spacing during the fifth instar, and disinfection between crops. Leaf shortage in the fifth instar is the commonest cause of low yield.

Why does renditta matter to the rearer?

Reelers pay on the silk they can extract. A batch with poor shell ratio and high renditta fetches a lower price per kilogram even at the same cocoon weight.