Mientras calculabamos cuántos tuners were in Chicago, there arose a question of Fermi a bit more local: How many cows are in Argentina?.
50% of the response to a question is to understand what is being asked. In this case, it would be: how many heads of cattle are in Argentina?
To begin to answer this question the Fermi , we need to make a quick impromptu survey: How much meat per week consumerism?
Preliminary results: of 10 respondents, average meat consumption per week of about $ \\ small 1.2 \\ pm 0.5 $ kg per week per capita. While the dispersion is large, we use that value as a starting point. On average, a year has 52.1 weeks, then in Argentina should be consumed about $ \\ small 1.2 \\ times $ 52.1 = 62.5 kg per year per inhabitant. We need now to move
kilograms of meat cattle. In a village butcher is that carriers still download a media-res on his shoulders. This sets an upper limit on the mass media-res: say that with sufficient experience and training that give the years of doing the job, the person who unloads the truck can carry a half-response of about 75 kg. According
2010 census, Argentina has 40 million inhabitants, and since there are two half-res per head of cattle, we have:
$ N_v = \\ left (4 \\ times 10 ^ 7 \\ rm {h} \\ right) \\ left (62.5 \\ frac {\\ rm {kg}} {\\ rm {h} \\ times \\ rm {a}} \\ right) \\ left (\\ frac {1} {75} \\ frac {\\ rm {media-res }} {\\ rm {kg}} \\ right) \\ left (\\ frac {1} {2} \\ frac {\\ rm {head}} {\\ rm {media-res}} \\ right) $
$ \\ \\ \\ = 1.67 \\ times 10 ^ 7 \\ approx 17 \\, 000 \\, 000 \\ \\ rm {head / a} $
Our first estimate is that in Argentina, last year, it consumed about 16 and a half million head cattle (steers and heifers). Contrast this first partial result with the data. A report INTA and SENASA said that in March 2010 was in Argentina almost 19 million head of cattle intended for meat production.
So far so good, and there will be more!! Next delivery
: Cows mothers, fathers cows, cows daughters, dairy
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