Using quartzite (silica-SiO2) tailing and kamafugite to reduce ammonia emission in poultry litter
ABSTRACT The composition of poultry litter plays a crucial role in regulating ammonia levels, humidity, and temperature in poultry houses. This study aimed to evaluate the effectiveness of quartzite tailings (98% SiO2) and kamafugite (35% SiO2) as additives to wood shavings in reducing ammonia conce...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universidade Federal de Lavras
2025-08-01
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| Series: | Ciência e Agrotecnologia |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542025000100229&lng=en&tlng=en |
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| Summary: | ABSTRACT The composition of poultry litter plays a crucial role in regulating ammonia levels, humidity, and temperature in poultry houses. This study aimed to evaluate the effectiveness of quartzite tailings (98% SiO2) and kamafugite (35% SiO2) as additives to wood shavings in reducing ammonia concentrations resulting from the decomposition of poultry waste. The experiment was conducted at a commercial laying hen farm located in Três Corações, Minas Gerais, using three treatments under closed-curtain conditions: (T1) pure wood shavings; (T2) wood shavings with 23% quartzite powder; and (T3) wood shavings with 23% kamafugite. The average temperature was 19 °C. The volatile ammonia (VA) content was measured under both open and closed curtain conditions, and the average temperature and VA concentration were 23.6 °C and 7.5 ppm, respectively, under the open curtains and 16.7 °C and 16.9 ppm, respectively, under the closed curtains. The addition of 23% quartzite and 23% kamafugite powder maintained the pH below 8 and the humidity below 3%. Although the differences in VA among the treatments were not statistically significant (p < 0.05), the results indicated average values of 7.8 ppm for T1, 6.8 ppm for T2, and 7.6 ppm for T3. The addition of quartzite and kamafugite powders led to reductions in ammonia levels by 1.0 ppm and 0.1 ppm, respectively. Both evaluated materials demonstrated potential as complementary additives to wood shavings in poultry litter for mitigating VA emissions. |
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| ISSN: | 1981-1829 |