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Research (Published online: 21-05-2015)

13. Critical sources of bacterial contamination and adoption of standard sanitary protocol during semen collection and processing in Semen Station - Chandrahas Sannat, Ajit Nair, S. B. Sahu, S. A. Sahasrabudhe, Ashish Kumar, Amit Kumar Gupta and R. K. Shende

Veterinary World, 8(5): 631-635

 

 

   doi: 10.14202/vetworld.2015.631-635

 

Chandrahas Sannat: Department of Veterinary Microbiology, College of Veterinary Science & A.H., Chhattisgarh Kamdhenu Vishwavidyalaya, Anjora, Durg, Chhattisgarh, India; csannat@rediffmail.com

Ajit Nair: Central Semen Station, Livestock Development Department, Government of Chhattisgarh, Anjora, Durg, Chhattisgarh, India; ajitnair1971@gmail.com

S. B. Sahu: Central Semen Station, Livestock Development Department, Government of Chhattisgarh, Anjora, Durg, Chhattisgarh, India; sahusb@ymail.com

S. A. Sahasrabudhe: Central Semen Station, Livestock Development Department, Government of Chhattisgarh, Anjora, Durg, Chhattisgarh, India; oic2css@gmail.com

Ashish Kumar: Department of Veterinary Microbiology, College of Veterinary Science & A.H., Chhattisgarh Kamdhenu Vishwavidyalaya, Anjora, Durg, Chhattisgarh, India; ashishvetdoc@gmail.com

Amit Kumar Gupta: Department of Veterinary Microbiology, College of Veterinary Science & A.H., Chhattisgarh Kamdhenu Vishwavidyalaya, Anjora, Durg, Chhattisgarh, India; dramitkumaragrahari2009@gmail.com

R. K. Shende: Department of Veterinary Microbiology, College of Veterinary Science & A.H., Chhattisgarh Kamdhenu Vishwavidyalaya, Anjora, Durg, Chhattisgarh, India; rshende786@rediffmail.com

 

Received: 29-12-2014, Revised: 11-04-2015, Accepted: 19-04-2015, Published online: 21-05-2015

 

Corresponding author: Chandrahas Sannat, e-mail: csannat@rediffmail.com


Citation: Sannat C, Nair A, Sahu SB, Sahasrabudhe SA, Kumar A, Gupta AK, Shende RK (2015) Critical sources of bacterial contamination and adoption of standard sanitary protocol during semen collection and processing in Semen Station, Veterinary World, 8(5):631-635.



Aim: The present investigation was conducted to locate the critical sources of bacterial contamination and to evaluate the standard sanitation protocol so as to improve the hygienic conditions during collection, evaluation, and processing of bull semen in the Semen Station.

Materials and Methods: The study compared two different hygienic procedures during the collection, evaluation and processing of semen in Central Semen Station, Anjora, Durg. Routinely used materials including artificial vagina (AV) inner liner, cone, semen collection tube, buffer, extender/diluter, straws; and the laboratory environment like processing lab, pass box and laminar air flow (LAF) cabinet of extender preparation lab, processing lab, sealing filling machine, and bacteriological lab were subjected to bacteriological examination in two phases of study using two different sanitary protocols. Bacterial load in above items/environment was measured using standard plate count method and expressed as colony forming unit (CFU).

Results: Bacterial load in a laboratory environment and AV equipments during two different sanitary protocol in present investigation differed highly significantly (p<0.001). Potential sources of bacterial contamination during semen collection and processing included laboratory environment like processing lab, pass box, and LAF cabinets; AV equipments, including AV Liner and cone. Bacterial load was reduced highly significantly (p<0.001) in AV liner (from 2.330.67 to 0.500.52), cone (from 4.161.20 to 1.910.55), and extender (from 1.330.38 to 0) after application of improved practices of packaging, handling, and sterilization in Phase II of study. Glasswares, buffers, and straws showed nil bacterial contamination in both the phases of study. With slight modification in fumigation protocol (formalin @600 ml/1000 ft3), bacterial load was significantly decreased (p<0.001) up to 0-6 CFU in processing lab (from 6.431.34 to 2.860.59), pass box (from 12.132.53 to 3.780.79), and nil bacterial load was reported in LAFs.
Conclusion: Appropriate and careful management considering critical points step by step starting right from collection of semen to their processing can significantly minimize bacterial contamination.
Keywords: bacterial contamination, critical sources, environment, laboratory equipments, Semen Station.



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