Re: Abstract of Colwell 1966 ??

[Wayde Allen <allen@xxxxxxxxxxxxxxxx>]

On Wed, 11 Dec 1996, Norma Foltz & Thomas H. Hogan wrote:

> The M-28 paragraphs goes like this:
>     Colwell, et al (1966), devoted a large amount of space to the 
> infrared photography of livestock.  By means of the technique,
> they were even able to sex the catle and differentiate between
> Herefores and Hereford-Angus crosses.  The counting of pigs, goats,
> sheep, cattle, and horses can be greatly facilitated by the modified
> black-and-white infrared technique.
> 
> Does anyone know of more recent studies along these lines??

There has got to more to this than this paragraph indicates!  I guess I
don't see how sexing identifying and counting livestock can be greatly
facilitated by the use of IR photography?  The usual approach is to take a
good look, and to count (1 bull, 1 cow, 2 bulls, 2 cows, ... ).  Of
course you could take IR pictures of each criter and then review the
prints later, I suppose.  Nevertheless it kind of sounds like someone had
a camera, some IR film, and just wanted to use it.  In what way can these
things be "greatly facilitated by the modified black-and-white infrared
technique"?

- Wayde Allen
  (allen@xxxxxxxxxxxxxxxx)



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Topic No. 2