Effects of three feed disinfectants on microbial population and nutritional value of broiler diets.
- 1Department of Animal and Poultry Health and Nutrition, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
- 2Department of Animal and Poultry Health and Nutrition, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran. Electronic address: [email protected].
Abstract
Feed hygienic quality can influence growth performance, health status, and production efficiency in broiler chickens. This study evaluated three chemical feed disinfectants differing in active ingredients-formaldehyde (formalin), a formaldehyde-propionic acid blend (Termin Gold®), and a hydrogen peroxide-silver nanoparticle formulation (Nanosil Feed & Air®)-and compared direct addition versus premix application on feed microbial quality, nutrient composition, and broiler performance. A total of 480 one-day-old male Ross 308 broiler chicks were used in a 35-d trial and allocated to 6 dietary treatments (4 pens/treatment; 20 birds/pen): control (no disinfectant), Termin Gold® added to the final diet, Nanosil Feed & Air® added to the final diet, formaldehyde added to the final diet, formaldehyde applied as a premix (prepared 7 d before use), and Termin Gold® applied as a premix (prepared 7 d before use). Growth performance was recorded weekly. Chemical composition of starter (d 0-10), grower (d 11-24), and finisher (d 25-35) diets was analyzed. Microbiological evaluations included total bacterial count, fungal count, and coliform population. From week 2 onward, premix-applied formaldehyde and Termin Gold® improved BW gain, feed intake, and feed conversion ratio, particularly during the grower and finisher phases. Disinfectant treatment did not adversely affect proximate diet composition. All disinfectants reduced bacterial contamination in starter and grower feeds, with formaldehyde showing the greatest effect in grower diets. Fungal counts were largely unaffected, whereas formaldehyde-based treatments produced the lowest coliform counts during the grower and finisher phases. In conclusion, both active ingredient and application method influenced disinfection efficacy. Premix application of formaldehyde- and formaldehyde-propionic acid-based disinfectants improved feed hygienic quality and broiler performance without compromising nutritional value.
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BibTeX
@article{janfadah2026effects,
title = {{Effects of three feed disinfectants on microbial population and nutritional value of broiler diets.}},
author = {Amir Janfadah and Seyed Ahmad Madani and Mohammad Reza Mohammadian and Seyed Mohammad Mahdi Hashemian},
journal = {Poultry science},
year = {2026},
month = oct,
doi = {10.1016/j.psj.2026.107907},
url = {https://europepmc.org/article/MED/42854493},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - Effects of three feed disinfectants on microbial population and nutritional value of broiler diets.
AU - Amir Janfadah
AU - Seyed Ahmad Madani
AU - Mohammad Reza Mohammadian
AU - Seyed Mohammad Mahdi Hashemian
PY - 2026
DA - 2026/10/05
JO - Poultry science
DO - 10.1016/j.psj.2026.107907
UR - https://europepmc.org/article/MED/42854493
AB - Feed hygienic quality can influence growth performance, health status, and production efficiency in broiler chickens. This study evaluated three chemical feed disinfectants differing in active ingredients-formaldehyde (formalin), a formaldehyde-propionic acid blend (Termin Gold®), and a hydrogen peroxide-silver nanoparticle formulation (Nanosil Feed & Air®)-and compared direct addition versus premix application on feed microbial quality, nutrient composition, and broiler performance. A total of 480 one-day-old male Ross 308 broiler chicks were used in a 35-d trial and allocated to 6 dietary treatments (4 pens/treatment; 20 birds/pen): control (no disinfectant), Termin Gold® added to the final diet, Nanosil Feed & Air® added to the final diet, formaldehyde added to the final diet, formaldehyde applied as a premix (prepared 7 d before use), and Termin Gold® applied as a premix (prepared 7 d before use). Growth performance was recorded weekly. Chemical composition of starter (d 0-10), grower (d 11-24), and finisher (d 25-35) diets was analyzed. Microbiological evaluations included total bacterial count, fungal count, and coliform population. From week 2 onward, premix-applied formaldehyde and Termin Gold® improved BW gain, feed intake, and feed conversion ratio, particularly during the grower and finisher phases. Disinfectant treatment did not adversely affect proximate diet composition. All disinfectants reduced bacterial contamination in starter and grower feeds, with formaldehyde showing the greatest effect in grower diets. Fungal counts were largely unaffected, whereas formaldehyde-based treatments produced the lowest coliform counts during the grower and finisher phases. In conclusion, both active ingredient and application method influenced disinfection efficacy. Premix application of formaldehyde- and formaldehyde-propionic acid-based disinfectants improved feed hygienic quality and broiler performance without compromising nutritional value.
SN - 0032-5791
SN - 1525-3171
ER -