Table 3.19 Microbial indicators (average numbers per gram wet weight) excreted in the feces of
warm-blooded animals [37]
Group
Thermotolerant
coliforms
Fecal
streptococci
Clostridium
perfringens
F-RNA
coliphage
Excretion
(g/day)
Farm
animals
Chicken
1,300,000
3,400,000
250
1867
182 (71.6)
Cow
230,000
1,300,000
200
84
23,600
(83.3)
Duck
33,000,000
54,000,000
–
13.1
336 (61.0)
Horse
12,600
6,300,000
<1
950
20,000
Pig
3,300,000
84,000,000
3980
4136
2700 (66.7)
Sheep
16,000,000
38,000,000
199,000
1.5
1130 (74.4)
Turkey
290,000
2,800,000
–
–
448 (62.0)
Domestic
pets
Cat
7,900,000
27,000,000
25,100,000
Dog
23,000,000
980,000,000 251,000,000
2.1
413
Human
13,000,000
3,000,000
1580a
<1.0–6.25
150 (77.0)
Ratios in
raw
50
5
0.3
1
–
Sewage
Fig. 3.13 Sampled
classification matrix of
microbial water quality [38]
108
H. A. Aziz et al.