Alphitobius diaperinus control and physicochemical study of poultry litters treated with quicklime and shallow fermentation

Abstract

Poultry litter reuse in Brazil is a common practice to reduce broiler production costs. Quicklime and shallow fermentation treatments are methods used to reduce microbial contamination and infestation of insects such as Alphitobius diaperinus (Panzer). The aim of this study was to evaluate the physicochemical parameters of reused poultry litter to better characterize the effects of quicklime and shallow fermentation on Salmonella and A. diaperinus control. Ammonia and humidity concentrations significantly increased on the litter treated with shallow fermentation and pH when treated with virgin and hydrated quicklime. For A. diaperinus control, shallow fermentation with 2 and 3 L of water and 3 L plus 600g of quicklime/m 2 eliminated 100% of the insects. Results of assessed physicochemical parameters indicated that the treatments with quicklime and shallow fermentation are inefficient to control Salmonella spp. because they do not reach the indexes required for this pathogen elimination, mainly ammonia and pH. Ammonia index produced by microbial fermentation in shallow fermentation treatment eliminates A. diaperinus .

Research Note: The use of ammonia gas for Salmonella control in poultry litters

“…The compound is widely examined because of its antimicrobial potential against several pathogens ( Himathongkham and Riemann, 1999 ; Koziel et al., 2017 ). However, ammonia concentrations commonly found in poultry litters are insufficient to promote antimicrobial effects ( Gehring et al., 2020 ). To the best of our knowledge, ammonia use in poultry litter against pathogens of genus Salmonella spp .…”

Efeito Antioxidante Do Extrato Hidroetanólico De Tiririca (Cyperus Rotundus L.) Em Eritrócitos De Pacientes Submetidos a Hemodiálise

“…Segundo Souza (2019) a cama sob os comedouros possui temperatura mais elevada, favorecendo ao encurtamento do ciclo do inseto (Bjorge et al, 2018) contribuindo para uma maior concentração do mesmo nesses locais. Há evidências de que a fermentação da cama realizada para sua reutilização no lote seguinte é um manejo importante para o controle do cascudinho, cuja elevação da temperatura (Gazoni et al, 2012) e níveis de amônia produzidos neste processo são suficientes para eliminar os insetos (Gehring et al, 2020), no entanto, há insetos que escapam desse processo e migram para outras regiões do galpão ou área externa, retornando após o repovoamento do aviário, o que limita a eficácia utilização isolada do processo de fermentação para o controle de cascudinho. Além disso, na ausência de qualquer tipo de controle há uma tendência de aumento da população de cascudinhos no aviário, conforme observado neste estudo, no controle observado na granja 01 (Figura 4).…”

Fermentasi Litter Broiler dengan Lama Inkubasi yang Berbeda dan Pengaruhnya terhadap Produksi Protein Total dan Kecernaan Protein secara In-Vitro

“…Penggunaan starter mix culture 6% diadopsi dari penelitian sebelumnya [12]. Pengolahan litter dengan metode fermentasi selain dapat meningkatkan kualitas nutrien pakan juga dapat mengurangi kontaminasi mikroba pada litter ayam [13]. Fermentasi litter dapat menurunkan pH dan menghilangkan bakteri patogen dan meningkatkan kualitas nutrisi litter [14].…”