HIDE-ON CARCASS WASH SYSTEM WITH THERMAL/CHEMICAL DEHAIRING AND MECHANICAL SCRAPING

• Sponsoring Institution: Agricultural Research Service/USDA
• Project Status: ACTIVE
• Funding Source: USDA INHOUSE
• Reporting Frequency: Annual
• Accession No.: 0426330
• Project Start Date: Feb 1, 2014
• Project End Date: Jan 31, 2016
• Program Code: [(N/A)]- (N/A)

Recipient Organization
AGRICULTURAL RESEARCH SERVICE
(N/A)
CLAY CENTER,NE 68933

Performing Department
(N/A)

Non Technical Summary
(N/A)

Animal Health Component

50%

Research Effort Categories

Basic

50%

Applied

50%

Developmental

0%

Classification

Knowledge Area (KA)	Subject of Investigation (SOI)	Field of Science (FOS)	Percent
712	3320	1100	100%

Knowledge Area
712 - Protect Food from Contamination by Pathogenic Microorganisms, Parasites, and Naturally Occurring Toxins;

Subject Of Investigation
3320 - Meat, beef cattle;

Field Of Science
1100 - Bacteriology;

Keywords

e.

coli

salmonella

stec

hide

intervention

hot

water

dehairing

Goals / Objectives
To evaluate the effectiveness of partial dehairing from hot water washing, pre-tanning solutions, and mechanical scraping as a hide-on carcass intervention.

Project Methods
We have a pilot scale version of a commercial hide-on carcass wash system that combines washing action with belt scrapers to enhance hide cleaning. By combining this equipment with hot water and then the pre-tanning soaking solutions that loosen the hair, an expanded pattern line area can be dehaired and cleaned such that the risk of carcass contamination is greatly reduced. The experiment will include three hide treatments: 1) hot water with scraping, 2) presoaking solutions with scraping, 3) hot water then presoaking solutions then scraping. Prevalence and enumeration of Salmonella and E. coli STEC (O157:H7, O26, O103, O111, O121, O45 and O145) will be determined before and after treatment on 20 replications per treatment on naturally contaminated hides.