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Assessment of Hygienic Practices among
Pig Slaughterhouses and Markets
in Chiang Mai Province, Thailand
MS. CHAYANEE JENPANICH
Joint Master Course in Veterinary Public Health, Chiang Mai University and Freie Universität Berlin
4th Food Safety and Zoonoses Symposium for Asia Pacific
& 2nd Regional EcoHealth Symposium
3-5th August 2015, Chiang Mai, Thailand
1
Chayanee Jenpanich1*, Fred Unger2, Thomas Alter3, Warangkhana Chaisowwong4,5
1 Joint Master Course in Veterinary Public Health (MVPH) of Freie Universität Berlin and Chiang Mai University, Thailand.
2 International Livestock Research Institute, Hanoi, Vietnam.
3 Institute of Food Hygiene, Department of Veterinary Medicine, Freie Universität Berlin.
4 Department of Veterinary Biosciences and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Thailand.
5 Veterinary Public Health Centre for Asia Pacific, Faculty of Veterinary Medicine, Chiang Mai University, Thailand.
Outline
Introduction
Materials and Methods
Results
Discussion
Conclusion
Introduction3
Background and rationale
Foodborne illness
 2.2 million people worldwide die each year (WHO, 2000)
caused by microbiological agents and chemical
contaminants
 3 major causes of diarrheal diseases in Thailand
- Poor personal hygiene (Setiabundhi et al., 1997)
-Contaminated food and drinking water (Al-Mutairi,
2011)
- Poor consumption behaviors (Bhandare, 2007)
4
Background and rationale
 Consumption meat in Thailand in 2011
Table 1. Meat consumption per capita in Thailand, 2011
Sources:
1 Thai broiler processing exporters association
2 Swine producers and processors for exporting association
3 Department of Livestock Development (Bovine strategic plan 2012-2016)
4 Duck Breeders Association for Trading and Export
5
Meat Unit
(kg/person/year)
Broiler1 16.3
Pork2 14.2
Beef3 2.2
Duck4 1.2
6 Background and rationale
 Pig production chain in Thailand
7 Background and rationale
Knowledge, Attitudes, Practices (KAP) assessment
A representative study of a specific population to collect information
on what is known, believed and acted on in relation to a particular topic
(WHO, 2008) by using questionnaires.
8 Objectives
 To assess the level of KAP of selected stakeholders in
slaughterhouses
and markets
 To assess the level of microbiological findings that indicated the
hygiene in slaughterhouses and markets
Materials and Methods9
Research type
 Cross-sectional study (November 2014 – April 2015)
10
Sampling plan
 Slaughterhouses
 Select all registered slaughterhouses of DLD lists
in
Chiang Mai and Lamphun provinces
11
12
1 Chiang Mai city
Municipality
18 markets
Other
24 districts
Selection criteria:
- Select 1 market/ district
- Accessible distance
and geography
13 markets
31
markets
Sampling plan:
Markets
Figure 1. Sampling plan of markets in Chiang Mai province
Select all registered
markets
13 districts
13
2 SH workers/SH
(n=32) SH
MK
Microbiological
Examination (n=132)
- Carcass swab (n=40)
- Knife swab (n=8)
- Cutting board swab (n=4)
- Hand washing (n=16)
- Pork sample (n=16)
- Knife swab (n=16)
- Cutting board swab (n=16)
- Hand washing (n=16)
Collect all of
SH and MK
SH: Slaughterhouse
MK: Market
Collect 50% of
total number of
SH and MK
Data collection from KAP study and microbiological examination
2 Pork sellers/
market (n=62)
KAP questionnaire
(n=94)
Data collection
 KAP
14
Key informant
- Personal hygiene
- Cross contamination
- Food borne illness
- Time & temperature
control
Data collection
 Microbiological examination
• Total viable count (ISO: 4833, 2003E)
• Enterobacteriaceae count (ISO: 21528-2, 2002)
15
At Slaughterhouse:
• Carcass swab (n=40)
• Knife swab (n=8)
• Cutting board swab (n=4)
• Hand washing (n=16)
At market:
• Pork sample (n=16)
• Knife swab (n=16)
• Cutting board swab (n=16)
• Hand washing (n=16)
Data analysis
 Descriptive analysis by using R program (version 3.1.3)
16
Results17
KAP questionnaires
 Collected 32 questionnaires from
16 slaughterhouses (2/SH)
 Collected 51 questionnaires from
29 markets (2/MK)
18
SLAUGHTERHOUSE (16)
MARKET (29)
Key of demographic characteristic in
slaughterhouse workers and sellers
Gender : 85% of SH workers are male
75% of sellers are female
Educational level : 40% of both sellers and SH workers ->
primary school or less
Working Experiences : More than 60%  > 5 years
Race : SH workers  80% are Thai but for 20% are
Myanmar and ethnic hill tribe
Pork sellers  all are Thai
19
Knowledge of respondents20
 Knowledge of respondent is vary between slaughterhouse workers and sellers
 Range of respondent’ knowledge is wider for sellers
Figure 2. Comparison of boxplot distributions for respondents correct answer (%)
Attitude of slaughterhouse workers21
Figure 3. The response of slaughterhouse workers (percentage) to attitude statement
related to food safety
Attitude of sellers22
Figure 4. The response of pork sellers (percentage) to attitude statements related to
food safety
Practice of slaughterhouse workers23
Figure 5. The response of slaughterhouse workers (percentage) to practice
statements
Practice of sellers24
Figure 6. The response of pork sellers (percentage) to attitude statements related to
food safety
Microbiological examination in slaughterhouses
Samples Unit n Mean±SD Median
Slaughterhouse
Total viable count
Carcass log cfu/cm2 40 3.09±1.34 3.45
Knife log cfu/cm2 8 2.69±0.90 2.74
Cutting board log cfu/cm2 4 3.13±1.59 2.53
Hand washing log cfu/100 ml 16 6.79±0.70 6.80
Slaughterhouse
Enterobacteriaceae
count
Carcass log cfu/cm2 40 0.03±1.08 0.04
Knife logcfu/cm2 8 -0.06±0.02 -0.09
Cutting board log cfu/cm2 4 0.61±1.02 0.83
Hand washing log cfu/100 ml 16 2.90±0.80 2.68
25
Table 2.Total viable counts and Enterobacteriaceae counts in different types of
samples at slaughterhouses
Microbiological examination in markets
Samples Unit n Mean±SD Median
Market
Total viable count
Pork log cfu/g 16 5.50±0.39 5.43
Knife log cfu/cm2 16 3.88±0.98 4.00
Cutting board log cfu/cm2 16 5.26±0.77 5.24
Hand washing log cfu/100 ml 16 8.02±0.95 7.92
Market
Enterobacteriaceae
count
Pork log cfu/g 16 2.55±1.43 2.95
Knife log cfu/cm2 16 1.71±1.33 1.66
Cutting board log cfu/cm2 16 2.31±1.15 2.21
Hand washing log cfu/100 ml 16 4.82±1.72 5.55
26
Table 3.Total viable counts and Enterobacteriaceae counts in different types of
samples at markets
Discussion27
Discussion
 Slaughterhouse workers and pork sellers got the
lowest scores about food borne illness.
 Need to enhance food borne knowledge and training
programs
28
Attitude versus practice of sellers
Attitude
versus
practice
Topics Strongly
agree
Agree Neutral Disagree Strongly
disagree
Attitude Using mask is important in
reducing risk of food
contamination.
11
(21.6%)
30
(58.8%)
1
(2.0%)
8
(15.7%)
1
(2.0%)
Topics Always Often Sometime
s
Rarely Never
Practice You use mask at work
daily.
2
(3.9%)
2
(3.9%)
13
(25.5%)
12
(23.5%)
22
(43.1%)
29
Table 3. Attitude versus practice of sellers
Microbiological examination in slaughterhouses
Samples Unit n Mean±SD Median
Slaughterhouse
Total viable count
Carcass log cfu/cm2 40 3.09±1.34 3.45
Knife log cfu/cm2 8 2.69±0.90 2.74
Cutting board log cfu/cm2 4 3.13±1.59 2.53
Hand washing log cfu/100 ml 16 6.79±0.70 6.80
Slaughterhouse
Enterobacteriaceae
count
Carcass log cfu/cm2 40 0.03±1.08 0.04
Knife logcfu/cm2 8 -0.06±0.02 -0.09
Cutting board log cfu/cm2 4 0.61±1.02 0.83
Hand washing log cfu/100 ml 16 2.90±0.80 2.68
30
Table 2.Total viable counts and Enterobacteriaceae counts in different types of
samples at slaughterhouses
Criteria:
Lab carcass (TVC)
≤5 log Accept
>5 log Poor
Lab pork (TVC):
≤5x105 cfu/g Accept
>5x105 cfu/g Poor
Lab knife, cutting board
(TVC)
≤10/cm2 Accept
>10/cm2 Poor
Lab hand washing
(TVC): log cfu/100ml
Do not have standard
Microbiological examination in markets
Samples Unit n Mean±SD Median
Market
Total viable count
Pork log cfu/g 16 5.50±0.39 5.43
Knife log cfu/cm2 16 3.88±0.98 4.00
Cutting board log cfu/cm2 16 5.26±0.77 5.24
Hand washing log cfu/100 ml 16 8.02±0.95 7.92
Market
Enterobacteriaceae
count
Pork log cfu/g 16 2.55±1.43 2.95
Knife log cfu/cm2 16 1.71±1.33 1.66
Cutting board log cfu/cm2 16 2.31±1.15 2.21
Hand washing log cfu/100 ml 16 4.82±1.72 5.55
31
Table 3.Total viable counts and Enterobacteriaceae counts in different types of
samples at markets
Criteria:
Lab carcass (TVC)
≤5 log Accept
>5 log Poor
Lab pork (TVC):
≤5x105 cfu/g Accept
>5x105 cfu/g Poor
Lab knife, cutting board
(TVC)
≤10/cm2 Accept
>10/cm2 Poor
Lab hand washing
(TVC): log cfu/100ml
Do not have standard
Microbiological examination32
Samples
Mean of
Total viable count
Mean of
Enterobacteriaceae
Carcass
(log10 cfu/cm2)
3.09 ± 1.34 0.03 ± 1.08
Pork
(log10 cfu/g)
5.50 ± 0.39 2.55 ± 1.43Poor standard
Criteria:
Lab carcass (TVC)
≤5 log Accept
>5 log Poor
Lab pork (TVC):
≤5x105 cfu/g Accept
>5x105 cfu/g Poor
Lab knife, cutting board
(TVC)
≤10/cm2 Accept
>10/cm2 Poor
Lab hand washing
(TVC): log cfu/100ml
Do not have standard
Conclusion33
Conclusion
 Slaughterhouse workers and sellers got the lowest scores about
food borne illness.
 Some attitudes are not in accordance with their practices.
 Apart from training programs, there is a need to better
understanding about cross contamination problem in pork
production chain and government should realize the real
problem and cooperate with stakeholders to find the techniques
or solve problems together.
34
Acknowledgement
 Dr. Warangkhana Chaisowwong
 Prof.Dr. Thomas Alter
 Asst.Prof.Dr. Veerasak Punyapornwithaya
 Dr. Maximilian Baumann
 Dr. Fred Unger
 Veterinary Public Health for Asia Pacific, Chiang Mai University
 Department of Veterinary Medicine, Freie Universität Berlin
 Deutscher Akademischer Austausch Dienst (DAAD)
 International Livestock Research Institute (ILRI)
35
THANK YOU36

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Assessment of hygienic practices among pig slaughterhouses and markets in Chiang Mai Province, Thailand

  • 1. Assessment of Hygienic Practices among Pig Slaughterhouses and Markets in Chiang Mai Province, Thailand MS. CHAYANEE JENPANICH Joint Master Course in Veterinary Public Health, Chiang Mai University and Freie Universität Berlin 4th Food Safety and Zoonoses Symposium for Asia Pacific & 2nd Regional EcoHealth Symposium 3-5th August 2015, Chiang Mai, Thailand 1 Chayanee Jenpanich1*, Fred Unger2, Thomas Alter3, Warangkhana Chaisowwong4,5 1 Joint Master Course in Veterinary Public Health (MVPH) of Freie Universität Berlin and Chiang Mai University, Thailand. 2 International Livestock Research Institute, Hanoi, Vietnam. 3 Institute of Food Hygiene, Department of Veterinary Medicine, Freie Universität Berlin. 4 Department of Veterinary Biosciences and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Thailand. 5 Veterinary Public Health Centre for Asia Pacific, Faculty of Veterinary Medicine, Chiang Mai University, Thailand.
  • 4. Background and rationale Foodborne illness  2.2 million people worldwide die each year (WHO, 2000) caused by microbiological agents and chemical contaminants  3 major causes of diarrheal diseases in Thailand - Poor personal hygiene (Setiabundhi et al., 1997) -Contaminated food and drinking water (Al-Mutairi, 2011) - Poor consumption behaviors (Bhandare, 2007) 4
  • 5. Background and rationale  Consumption meat in Thailand in 2011 Table 1. Meat consumption per capita in Thailand, 2011 Sources: 1 Thai broiler processing exporters association 2 Swine producers and processors for exporting association 3 Department of Livestock Development (Bovine strategic plan 2012-2016) 4 Duck Breeders Association for Trading and Export 5 Meat Unit (kg/person/year) Broiler1 16.3 Pork2 14.2 Beef3 2.2 Duck4 1.2
  • 6. 6 Background and rationale  Pig production chain in Thailand
  • 7. 7 Background and rationale Knowledge, Attitudes, Practices (KAP) assessment A representative study of a specific population to collect information on what is known, believed and acted on in relation to a particular topic (WHO, 2008) by using questionnaires.
  • 8. 8 Objectives  To assess the level of KAP of selected stakeholders in slaughterhouses and markets  To assess the level of microbiological findings that indicated the hygiene in slaughterhouses and markets
  • 10. Research type  Cross-sectional study (November 2014 – April 2015) 10
  • 11. Sampling plan  Slaughterhouses  Select all registered slaughterhouses of DLD lists in Chiang Mai and Lamphun provinces 11
  • 12. 12 1 Chiang Mai city Municipality 18 markets Other 24 districts Selection criteria: - Select 1 market/ district - Accessible distance and geography 13 markets 31 markets Sampling plan: Markets Figure 1. Sampling plan of markets in Chiang Mai province Select all registered markets 13 districts
  • 13. 13 2 SH workers/SH (n=32) SH MK Microbiological Examination (n=132) - Carcass swab (n=40) - Knife swab (n=8) - Cutting board swab (n=4) - Hand washing (n=16) - Pork sample (n=16) - Knife swab (n=16) - Cutting board swab (n=16) - Hand washing (n=16) Collect all of SH and MK SH: Slaughterhouse MK: Market Collect 50% of total number of SH and MK Data collection from KAP study and microbiological examination 2 Pork sellers/ market (n=62) KAP questionnaire (n=94)
  • 14. Data collection  KAP 14 Key informant - Personal hygiene - Cross contamination - Food borne illness - Time & temperature control
  • 15. Data collection  Microbiological examination • Total viable count (ISO: 4833, 2003E) • Enterobacteriaceae count (ISO: 21528-2, 2002) 15 At Slaughterhouse: • Carcass swab (n=40) • Knife swab (n=8) • Cutting board swab (n=4) • Hand washing (n=16) At market: • Pork sample (n=16) • Knife swab (n=16) • Cutting board swab (n=16) • Hand washing (n=16)
  • 16. Data analysis  Descriptive analysis by using R program (version 3.1.3) 16
  • 18. KAP questionnaires  Collected 32 questionnaires from 16 slaughterhouses (2/SH)  Collected 51 questionnaires from 29 markets (2/MK) 18 SLAUGHTERHOUSE (16) MARKET (29)
  • 19. Key of demographic characteristic in slaughterhouse workers and sellers Gender : 85% of SH workers are male 75% of sellers are female Educational level : 40% of both sellers and SH workers -> primary school or less Working Experiences : More than 60%  > 5 years Race : SH workers  80% are Thai but for 20% are Myanmar and ethnic hill tribe Pork sellers  all are Thai 19
  • 20. Knowledge of respondents20  Knowledge of respondent is vary between slaughterhouse workers and sellers  Range of respondent’ knowledge is wider for sellers Figure 2. Comparison of boxplot distributions for respondents correct answer (%)
  • 21. Attitude of slaughterhouse workers21 Figure 3. The response of slaughterhouse workers (percentage) to attitude statement related to food safety
  • 22. Attitude of sellers22 Figure 4. The response of pork sellers (percentage) to attitude statements related to food safety
  • 23. Practice of slaughterhouse workers23 Figure 5. The response of slaughterhouse workers (percentage) to practice statements
  • 24. Practice of sellers24 Figure 6. The response of pork sellers (percentage) to attitude statements related to food safety
  • 25. Microbiological examination in slaughterhouses Samples Unit n Mean±SD Median Slaughterhouse Total viable count Carcass log cfu/cm2 40 3.09±1.34 3.45 Knife log cfu/cm2 8 2.69±0.90 2.74 Cutting board log cfu/cm2 4 3.13±1.59 2.53 Hand washing log cfu/100 ml 16 6.79±0.70 6.80 Slaughterhouse Enterobacteriaceae count Carcass log cfu/cm2 40 0.03±1.08 0.04 Knife logcfu/cm2 8 -0.06±0.02 -0.09 Cutting board log cfu/cm2 4 0.61±1.02 0.83 Hand washing log cfu/100 ml 16 2.90±0.80 2.68 25 Table 2.Total viable counts and Enterobacteriaceae counts in different types of samples at slaughterhouses
  • 26. Microbiological examination in markets Samples Unit n Mean±SD Median Market Total viable count Pork log cfu/g 16 5.50±0.39 5.43 Knife log cfu/cm2 16 3.88±0.98 4.00 Cutting board log cfu/cm2 16 5.26±0.77 5.24 Hand washing log cfu/100 ml 16 8.02±0.95 7.92 Market Enterobacteriaceae count Pork log cfu/g 16 2.55±1.43 2.95 Knife log cfu/cm2 16 1.71±1.33 1.66 Cutting board log cfu/cm2 16 2.31±1.15 2.21 Hand washing log cfu/100 ml 16 4.82±1.72 5.55 26 Table 3.Total viable counts and Enterobacteriaceae counts in different types of samples at markets
  • 28. Discussion  Slaughterhouse workers and pork sellers got the lowest scores about food borne illness.  Need to enhance food borne knowledge and training programs 28
  • 29. Attitude versus practice of sellers Attitude versus practice Topics Strongly agree Agree Neutral Disagree Strongly disagree Attitude Using mask is important in reducing risk of food contamination. 11 (21.6%) 30 (58.8%) 1 (2.0%) 8 (15.7%) 1 (2.0%) Topics Always Often Sometime s Rarely Never Practice You use mask at work daily. 2 (3.9%) 2 (3.9%) 13 (25.5%) 12 (23.5%) 22 (43.1%) 29 Table 3. Attitude versus practice of sellers
  • 30. Microbiological examination in slaughterhouses Samples Unit n Mean±SD Median Slaughterhouse Total viable count Carcass log cfu/cm2 40 3.09±1.34 3.45 Knife log cfu/cm2 8 2.69±0.90 2.74 Cutting board log cfu/cm2 4 3.13±1.59 2.53 Hand washing log cfu/100 ml 16 6.79±0.70 6.80 Slaughterhouse Enterobacteriaceae count Carcass log cfu/cm2 40 0.03±1.08 0.04 Knife logcfu/cm2 8 -0.06±0.02 -0.09 Cutting board log cfu/cm2 4 0.61±1.02 0.83 Hand washing log cfu/100 ml 16 2.90±0.80 2.68 30 Table 2.Total viable counts and Enterobacteriaceae counts in different types of samples at slaughterhouses Criteria: Lab carcass (TVC) ≤5 log Accept >5 log Poor Lab pork (TVC): ≤5x105 cfu/g Accept >5x105 cfu/g Poor Lab knife, cutting board (TVC) ≤10/cm2 Accept >10/cm2 Poor Lab hand washing (TVC): log cfu/100ml Do not have standard
  • 31. Microbiological examination in markets Samples Unit n Mean±SD Median Market Total viable count Pork log cfu/g 16 5.50±0.39 5.43 Knife log cfu/cm2 16 3.88±0.98 4.00 Cutting board log cfu/cm2 16 5.26±0.77 5.24 Hand washing log cfu/100 ml 16 8.02±0.95 7.92 Market Enterobacteriaceae count Pork log cfu/g 16 2.55±1.43 2.95 Knife log cfu/cm2 16 1.71±1.33 1.66 Cutting board log cfu/cm2 16 2.31±1.15 2.21 Hand washing log cfu/100 ml 16 4.82±1.72 5.55 31 Table 3.Total viable counts and Enterobacteriaceae counts in different types of samples at markets Criteria: Lab carcass (TVC) ≤5 log Accept >5 log Poor Lab pork (TVC): ≤5x105 cfu/g Accept >5x105 cfu/g Poor Lab knife, cutting board (TVC) ≤10/cm2 Accept >10/cm2 Poor Lab hand washing (TVC): log cfu/100ml Do not have standard
  • 32. Microbiological examination32 Samples Mean of Total viable count Mean of Enterobacteriaceae Carcass (log10 cfu/cm2) 3.09 ± 1.34 0.03 ± 1.08 Pork (log10 cfu/g) 5.50 ± 0.39 2.55 ± 1.43Poor standard Criteria: Lab carcass (TVC) ≤5 log Accept >5 log Poor Lab pork (TVC): ≤5x105 cfu/g Accept >5x105 cfu/g Poor Lab knife, cutting board (TVC) ≤10/cm2 Accept >10/cm2 Poor Lab hand washing (TVC): log cfu/100ml Do not have standard
  • 34. Conclusion  Slaughterhouse workers and sellers got the lowest scores about food borne illness.  Some attitudes are not in accordance with their practices.  Apart from training programs, there is a need to better understanding about cross contamination problem in pork production chain and government should realize the real problem and cooperate with stakeholders to find the techniques or solve problems together. 34
  • 35. Acknowledgement  Dr. Warangkhana Chaisowwong  Prof.Dr. Thomas Alter  Asst.Prof.Dr. Veerasak Punyapornwithaya  Dr. Maximilian Baumann  Dr. Fred Unger  Veterinary Public Health for Asia Pacific, Chiang Mai University  Department of Veterinary Medicine, Freie Universität Berlin  Deutscher Akademischer Austausch Dienst (DAAD)  International Livestock Research Institute (ILRI) 35

Editor's Notes

  1. This slide show that pork is one of main protein source that Thai people consume average 14.2 kg/ person/year in 2011.
  2. However, when we consider pig production chain from farm to fork, start from farm transport to slaughterhouse and then transport to the wet market or supermarket and direct to comsumer. That mean it has chance in every process to contaminate with pathogen
  3. KAP assessment can be one tool of study in order to improve personal hygiene. What is Knowledge, Attitudes, Practices or KAP assessment? KAP assessment is a representative study of a specific population to collect information on what is known, believed and acted on in relation to a particular topic. Knowledge is a set of understanding and learning from experiences lead to perception Attitudes, it consists of 3 components i.e. affective, cognitive and behavior that express personality Practices, it means behaviors that are the observable actions of an individual in response to a stimulus
  4. read
  5. Sampling plan for Slaughterhouses. Select all of 16 slaughterhouses in Chiang Mai and Lamphun province by convenient sampling. It consists of 2 accredited slaughterhouses and 14 non-accredited slaughterhouses in order that based on the study of factors associated with National Accreditation of small- and medium-scale pig slaughterhouse in Chiang Mai-lamphun that can be assessed in slaughterhouses.
  6. Sampling plan for wet markets. This circle represent Chiang Mai province. Chiang Mai province consists of 25 districts. The small one represent chiangmai city , stars represent other 24 districts. We will see from Chiang Mai city. It has 18 registered markets and we will plan to include all of these markets. So that, other 24 district will be followed criteria by select 1 market per one district and then we select 13 districts that can be accessible distance and geography. So, totally is 31 wet markets
  7. However, when we consider pig production chain from farm to fork, start from farm transport to slaughterhouse and then transport to the wet market or supermarket and direct to comsumer. That mean it has chance in every process to contaminate with pathogen
  8. ทำไมมันต่ำสุด และต้องการการทำอะไรต่อไป
  9. Gap ระหว่าง SH กับ MK จะต้องไปดู ตรง carcass ซากโอเค แต่หลังจากเก็บตัวอย่าง ไปจนถึงตลาด เกิดอะไรขึ้นก้อไม่รู้