The Accidental Smallholder Forum
Livestock => Pigs => Topic started by: nedfromtheshed on September 09, 2013, 07:04:52 pm
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I've a bit of a problem with the formula given on the Slaughtering Page of the Pig section of this web site. The formula is Girth x Girth x Length /69.3 for Kg or /400 for pounds. This would give a weight of fewer pounds than Kg so can't be right. Further, the difference between lbs and kg should be 2.2x fewer kg than lbs . Is it me or is there an error in the formula?
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it does look like they got it wrong - as i understand it the formula works like this
METRIC- girth in metres X girth in metres X length in metres MULTIPLIED by 69.3 = weight in kg
IMPERIAL - girth in inches X girth in inches X length in inches DIVIDED by 400 = weight in lbs
if i'm wrong I'm sure someone else will know
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That's right as far as I know.
I measure in inches so my sum is girth x girth x length / 400 = answer in lbs /2.2 = weight in kg.
Hope that makes sense (And correct!!)????
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I use;
Heart girth squared (measured in meters) multiplied by length (again, in meters) then multiplied by 69.3 to give weight in Kg.
But, as a rough guide, when they measure 40 inches round the hearth girth they're approx 85Kg and ready to go :thumbsup: (courtesy of Fowgill Farm)
HTH
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Thanks for that. It now makes sense. It looks like my pigs are almost ready to go - 39.5" girth 138lbs, and 39" 119lbs.