منابع مشابه
Sexing Day-Old Chicks on Small and Backyard Flocks
Vent sexing was developed in Japan and brought to North American poultry producers in the 1930s. Vent sexing is a skill that takes a long time to develop. It involves holding the chick upside down in one hand, expelling the fecal material, and everting (turning outward) the vent area. The producer can then look for the presence or absence of a rudimentary male sex organ. This process sounds muc...
متن کاملSexing Day-Old Chicks: A Case Study and Expert Systems Analysis of a Difficult Perceptual-Learning Task
The sexing of day-old chicks has been regarded as an extraordinarily difficult perceptual task requiring years of extensive practice for its mastery. Experts can sex chicks at over 98% accuracy at a rate of 1,000 chicks per hour spending less than a half second viewing the cloacal region. Naive subjects were shown 18 pictures of cloacal regions of male and female chicks (in random appearing arr...
متن کاملColor Language and Color Cognition: Brown and Lenneberg Revisited
The relation between language and non-linguistic behavior has a long history of empirical investigation and continues to engender lively debate (see Steels & Belpaeme, in press). In a seminal investigation of this relationship in the color domain, Brown and Lenneberg (1954) reported a positive correlation between a range of measures of codability for colors (speed of naming, consensus, communic...
متن کاملConference Summary: brown is now a color
This is a very personal summary of the meeting Brown dwarfs and Extrasolar Planets, written from the point of view of a theo-retician. I apologize for some naiveness in the presentation, and for giving too much space to my personal views.
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1946
ISSN: 0032-5791
DOI: 10.3382/ps.0250180