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Table 3 Effects of species, diet, and feed deprivation time (FDT) on the microbial counts (log 10 CFU/cm 2 ) on skin and carcass of sheep and goats

From: Preslaughter diet management in sheep and goats: effects on physiological responses and microbial loads on skin and carcass

 

Species

 

Diet

 

FDT

  

Response

Goat

Sheep

P-value

HD

CD

P-value

12-hrs

24-hrs

P-value

SE

n

16

16

 

16

16

 

16

16

  

Skin, pre-holding1

          

  E. coli count

2.00

2.21

0.2129

2.06

2.16

0.5527

    

  Total coliform count

2.12b

3.04a

0.0011

2.43

2.73

0.2413

    

  Aerobic plate count

8.21b

8.53a

0.0305

8.42

8.31

0.4511

    

Skin, pre-slaughtering2

          

  E. coli count

2.23b

2.93a

0.0118

2.56

2.60

0.8650

2.38

2.78

0.1238

0.180

  Total coliform count

2.26b

3.01a

0.0135

2.60

2.67

0.8074

2.42

2.85

0.1352

0.197

  Aerobic plate count

8.31

8.30

0.8017

8.33

8.28

0.3198

8.34

8.28

0.2163

0.035

Carcass, pre-washing3

          

  E. coli count

2.28

2.51

0.2212

2.34

2.44

0.6018

2.28

2.41

0.8959

0.134

  Total coliform count

2.29

2.56

0.1999

2.35

2.50

0.4587

2.43

2.43

1.0000

0.141

  Aerobic plate count

7.93

8.28

0.0718

8.16

8.04

0.5076

8.35a

7.85b

0.0128

0.131

  1. HD = hay diet; CD = concentrate diet.
  2. 1Skin swabs from hind leg before depriving feed to experimental animals.
  3. 2Skin swabs from hind leg right before starting slaughtering.
  4. 3Carcass swabs from flank, brisket and leg regions right before washing after skinning and gut removed.
  5. a,bWithin a row, least squares means that do not have a common superscript letter differ (P < 0.05).