The effects of feed withdrawal, transport and lairage on intestinal microflora in broiler chickens | [Journal of animal health and production • 2023]

Author(s):

1. Zulaikha Zainool Abidin: Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 43400 Serdang, Selangor

2. Fahim Hafiy Idris: Department of Animal Science, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor

3. Suriya Kumari Ramiah: Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 43400 Serdang, Selangor

4. Elmutaz Atta Awad: Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 43400 Serdang, Selangor

5. Zunita Zakaria: Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor; Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 Serdang, Selangor.

6. Zulkifli Idrus: Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 43400 Serdang, Selangor; Department of Animal Science, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor

Abstract:

This study investigated the efects of stressful pre-slaughter practices, namely feed withdrawal, road transportation, and lairage, on the caecal population Salmonella spp., Campylobacter spp., E. coli, Clostridium spp., and Lactobacillus spp. in broiler chickens. Thirty-five-day-old broiler chickens were subjected to either 0 h or 8 h of feed withdrawal, followed by 2 h or 4 h of road transportation. For each feed withdrawal-transportation subgroup, the birds were lairaged for 0 h or 3 h. Salmonella spp. and Campylobacter spp. were only detected in two and three birds, respectively. Because of the insuficient data, both types of bacteria were excluded from the study. Eight hours of feed withdrawal increased the population of Lactobacilli significantly but had a negligible efect on E. coli and Clostridium spp. counts. Prolonged duration of road transportation and lairage increased caecal counts of E coli. Birds road transported for 8 h had a higher caecal population of Clostridium spp. but lairage duration had no significance on the bacteria. In conclusion, the present findings strengthen the notion that minimising the stress associated with pre-slaughter practices is important to maintain the safety of broiler chicken meat.

Page(s): 68-72

DOI: 10.17582/journal.jahp/2023/11.1.68.72

Published: Journal: Journal of animal health and production, Volume: 11, Issue: 1, Year: 2023

Keywords:

Transport , Broiler chickens , Caecal microflora , Feed withdrawal , Lairage

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