Banca de DEFESA: MAICON DHIEGO SGARBOSSA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : MAICON DHIEGO SGARBOSSA
DATA : 14/11/2018
HORA: 14:00
LOCAL: Sala de Cursos Canário na Embrapa Suínos e Aves
TÍTULO:

Contamination of poultry carcasses during slaughter: quantification, risk factors and post-contamination mitigation

PALAVRAS-CHAVES:

Trimming; washing; contamination; Salmonella; poultry.

PÁGINAS: 54
GRANDE ÁREA: Ciências Agrárias
ÁREA: Medicina Veterinária
RESUMO:

Contamination rates in poultry slaughterhouses are currently high. The objective of this study was to evaluate the efficacy of refill and washing for the reduction of Salmonella spp. and enterobacteria; measure their relationship with visible gastrointestinal contamination; identify the effect of the chiller; quantify the condemned carcasses, in addition to identifying risk factors for contamination. The study was carried out in three stages: 1) Sampling 480 carcasses to analyze the count of enterobacteria and the presence of Salmonella spp.; 2) Stratification and quantification of losses due to contamination in the slaughter of 201,225 broilers; 3) analysis of slaughtering data of 2,119,801 broillers to assess the risk factors for contamination. It was identified that for enterobacteria there was no difference between carcasses with or without apparent contamination with washed or refined carcasses, but there was reduction after the chiller. For Salmonella spp. there was no difference between treatments; it has been observed that the whole leg was more condemned and the portion is higher in biliary contamination; the risk factors for gastrointestinal contamination were weight, number of chickens per cage, loading order and production lot, and for bile were fasting time and slaughtering shift. It was concluded that trimming and washing were ineffective for the reduction of Salmonella spp. and enterobacteria, regardless of visual contamination; the chiller reduced the count of enterobacteria; whole leg was the most condemned parts; the regulation of the equipment, the period of the day in which the fasting is carried out and the fasting time are the risk factors where interventions may occur to reduce the contaminations.

MEMBROS DA BANCA:
Interno - 558.691.730-00 - PAULO AUGUSTO ESTEVES - EMBRAPA
Interno - 1756086 - DIOGENES DEZEN
Externo à Instituição - LUIZINHO CARON - EMBRAPA
Externo à Instituição - SABRINA CASTILHO DUARTE