HIERARCHICAL ALPHANUMERIC CODING SAMPLES
ACOUSTIC SIGNATURES DIGESTION SYSTEM SYMPTOMS
A00 Sağırlık
A01 tam sağırlık A02 kısmi sağırlık A 10 kulak akıntısı
A 11 kanlı akıntı A12 purulent akıntı A20 aşırı kulak kiri
A30 anormal kulak şekli A40 diğer
A41 kulak kenesi
S00 anormal iştah
S01 az iştah S02 polifaji S03 anoreksi S04 pika S50 ağız mukozası belirtileri S70 mide belirtileri
S71 kusma S90 dışkı
S91 ishal
Symbols
(FAO-OIE SYMBOLIC CODES)
2
CODE DISEASE FORMATION
- Not reported
(-) Not reported, maybe not
? Not reported, maybe not
suspicious but unconfirmed
(+) Random occurrence
+ Low sporadic cruise
++ Moderate incidence
+++ High incidence
CODE DISEASE FORMATION
… No information
+\ Disease reduced but still there.
+ Limited in certain areas
+ Only seen in imported animals
+ Seasonal formation
+ ! The disease has only recently been seen in the country
+ . . There is disease but its distribution and incidence are unknown
Data collection by sampling
4
In an epidemiological study, all of the populations Data can be collected from individuals (census).
However, this applies only to research conducted in
populations with low numbers of animals.
Random sampling
The sample units are selected from the working
population in certain rules based primarily on cue.
In the random sample, each sample unit is selected independently of each other and "the probability of selecting each animal in the population is equal.
so that in this sampling method, faults and deviations are
minimized.
Adjusted random sampling
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Sampling is done according to the specific
subgroups in the population.
A bölgesİ 10.000 HAYVAN ,10.000*0.05=500 ÖRNEK B bölgesİ 2.000 HAYVAN , 2.000*0.05=100 ÖRNEK C bölgesİ 5.000 HAYVAN ,5.000*0.05=250 ÖRNEK D bölgesİ 1.000 HAYVAN , 1.000*0.05=50 ÖRNEK
Sampling from animal populations in different regions can be adjusted in a similar
manner if desired. if sampling of 5% "of animals in the tuberculosis screening made in 4 regions with different volume of bovine population, sample distribution should be as
follows;
