New method to calculate foal weight
Researchers inwards Republic of Chile direct maintain come upward up amongst a novel formula to larn inwards easier to guess a foal’s weight.
It is oft of import to know how much a foal weighs. Records of torso weight tin live on used to monitor increase charge per unit of measurement too ensure accurate dosing of anthelmintics too other medications.
Obviously a weighbridge or scale that measures the weight accurately is the “gold standard”. But oft scales are non available. Visual estimates are oft inaccurate. Many weight tapes are non intended for role inwards foals nether half-dozen months age.
Various indirect methods of estimating the weight direct maintain been described. These unremarkably involve a calculation based on measurements of parts of the body. While such systems mightiness live on practical inwards adult horses, they tin acquaint difficulties inwards uncooperative foals.
Researchers at the University of Concepcion inwards Republic of Chile direct maintain devised a formula that they claim provides a unproblematic agency of estimating a foal’s weight. Influenza A virus subtype H5N1 study of their question was published inwards the Veterinary Record.
The method requires exclusively 1 measure to live on taken. The distance to a greater extent than or less the girth is measured but behind the elbow too 2.54cm behind the highest indicate of the withers. The measure is taken but afterwards the foal has exhaled.
Dr Rodriguez too colleagues measured lxxx thoroughbred foals weighing betwixt fifty too 250kg. Analysis of the information produced a formula that could live on used to predict the weight from the pump girth.
| Estimated weight (kg) = G³ x 90 (where G = pump girth measure inwards metres.) |
A to a greater extent than complex formula (wt = G2.9945 x 0.000088, where G is the girth measure centimetres) was constitute to hand a to a greater extent than accurate result, but the scientists advise that this mightiness test besides complicated for role on the farm.
They also constitute that their method was non quite every bit accurate every bit 1 previously described past times Staniar too others. However, it does direct maintain the payoff of simplicity. In improver to pump girth measurement, Staniar’s formula also includes the length from indicate of shoulder to indicate of buttock, length of the left foreleg too circumference of the knee.
The scientists recommend their novel formula for estimating a foal’s weight on the farm. Not exclusively does it hand acceptable results from a unmarried measurement, it is relatively unproblematic too tin easily live on remembered.
» Working out the weight of your horse
New Formula for bodyweight estimation of thoroughbred foals
C Rodriguez, L Muñoz, H Rojas, K Briones
Veterinary Record (2007) 161, 165-166
First published on Horsetalk inwards September, 2007
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