Evaluation of the reuse of poultry litter on the carcass condemnated due to colibacillosis

Abstract

The objective of this work was to evaluate the influence of poultry litter reuse on the condemnation of chicken carcasses in two slaughterhouses under federal inspection in the State of São Paulo, which obtain poultry from farms with different bed reuse protocols. Brazil is a major producer and exporter of chicken meat and there are many losses in the production chain, which could result in higher productivity if there are not problems in that process. The management of poultry litter is important for the final quality of the carcasses and is associated with most of the pathologies found in broilers, such as colibacillosis. Do not observed condemnation by colibacillosis in the slaughtering "A" that farms reuse the chicken litter for a maximum of six times. But in the slaughterhouse "B" the carcasses rejection was 0.06% and the chickens were coming from farms that reuse the material for more than six times. Both farms reuse the chicken litter after turning and fermentation protocols. These results demonstrate a relation between the number of times the material is used and the pathology studied. Thus, the management of chicken litter can be responsible for the losses of carcasses by colibacillosis in the poultry industry.

Replacement of performance enhancers by propolis ethanol extract in broiler diets

“…Excessive bed moisture, when associated with diarrhea of birds, is often related to the low thickness of the substrate and the shedding of water, creating favorable conditions for ammonia production and promoting the growth of pathogens (Santiago, Passarini, Cerqueira, & da Cunha, 2019). According to Kamimura et al (2018) beds with humidity above 35% become plastered, causing discomfort to birds, affecting their zootechnical performance, and decreasing resistance to diseases.…”

Production of extended-spectrum beta-lactamases in Escherichia coli isolated from poultry in Rio de Janeiro, Brazil

“…Brazilian poultry has been dramatically affected by infections, such as avian colibacillosis in broiler and laying birds caused by E. coli. These infections are the leading cause of complete condemnation of broiler carcasses in slaughterhouses under the Federal Inspection Service in the southern region of Brazil, resulting in substantial economic losses for producers and the entire production chain (Roth et al, 2019;Santiago et al, 2019). Brazil is one of the most important producers and exporters of chicken meat globally (United States Departament of Agriculture Foreign Agricultura, 2022), so these infectious diseases are of great economic and health concern.…”