Adsorbent Powders vs Enzyme Products: Effective Odour Control for Pets, Poultry, and Livestock
- Earth & Clay
- Nov 19
- 3 min read
Abstract
Odour management in animal environments including pets, poultry houses, and livestock barns is critical for hygiene, animal welfare, and human comfort. Traditional bio-enzymatic odour control formulations break down organic matter, but their effectiveness is highly variable. Mineral-based adsorbent powders such as diatomaceous earth and attapulgite clay provide physical and chemical mechanisms that consistently neutralize odours, absorb ammonia, and manage moisture. This article examines the scientific differences, mechanisms, and practical effectiveness of these approaches.

Understanding Odour Sources
Pets: Dog and cat urine produce ammonia, urea, and volatile organic compounds (VOCs) that create persistent odours in carpets, bedding, and indoor environments
Poultry: Chicken coops generate ammonia from droppings and moisture in litter, causing odours that impact bird health and worker comfort
Livestock: Barns and stables accumulate manure, moisture, and ammonia, creating odours that affect air quality and hygiene
Mineral-Based Adsorbent Powders
Diatomaceous Earth (DE)
Composition: Predominantly amorphous silica (SiOâ‚‚) with trace minerals
Mechanism: Highly porous, DE physically adsorbs moisture, ammonia, and VOCs. Surface silanol (Si–OH) groups interact with polar molecules, reducing odours at the source
Effectiveness:
Absorbs wet litter, bedding, and spills
Traps ammonia gas before it volatilizes
Long-lasting, stable under varying temperature and moisture
Attapulgite Clay
Composition: Fibrous magnesium aluminum silicate with high surface area and internal channels
Mechanism: Cation exchange capacity (CEC) binds ammonium ions and ammonia gas while adsorbing moisture and odour molecules
Effectiveness:
Reduces odours in poultry litter, pet bedding, and livestock stalls
Maintains hygiene and moisture balance
Chemically inert and safe for all animals
Bio-Enzymatic Odour Control Formulations
Composition: Mixtures of proteases, ureases, and lipases derived from microbial cultures
Mechanism: Enzymes catalytically degrade proteins, urea, and fats to reduce odours
Limitations:
Activity dependent on pH, temperature, and moisture
Limited penetration in deep litter or porous surfaces
Short-term effect; repeated applications required
Sometimes produces transient ammonia release during urea breakdown
Comparative Effectiveness: Adsorbent Powders vs Enzymes
Parameter | Adsorbent Powders (DE + Attapulgite) | Bio-Enzymatic Formulations |
Mechanism | Physical adsorption, cation exchange, moisture retention | Biochemical degradation of proteins, urea, and fats |
Ammonia Control | Strong, long-lasting | Limited, surface-dependent |
Moisture Absorption | High; prevents wet litter build-up | Minimal; may dilute enzyme activity |
Surface Penetration | Bedding, litter, turf, porous surfaces | Surface-level only |
Environmental Tolerance | Stable under temperature and pH variations | Sensitive to pH, moisture, temperature |
Longevity | Maintains odour control until physically removed or saturated | Short-term; frequent reapplication |
Safety | Non-toxic, safe for pets, poultry, and livestock | Generally safe; some formulations may contain allergens or stabilizers |
Practical Applications Across Animal Environments
Pets: Sprinkle adsorbent powders on bedding, carpets, and litter boxes to neutralize ammonia and urine odours
Poultry: Mix powders into chicken coop litter to absorb moisture, reduce ammonia, and maintain air quality
Livestock: Apply to stalls, barns, or bedding to maintain hygiene and reduce odour exposure for workers and animals
Hybrid Approach: Enzyme formulations can be used alongside powders for surface-level odour breakdown, but adsorbent powders provide the primary, long-term solution
Conclusion
While bio-enzymatic odour control formulations have niche applications for surface organic matter, adsorbent powders such as diatomaceous earth and attapulgite clay are scientifically superior for comprehensive odour management. Their mineral structure, cation exchange capacity, and moisture adsorption enable consistent and long-lasting odour control across pets, poultry, and livestock environments. For effective ammonia and odour mitigation, adsorbent powders should be the foundation of any odour management program, with enzyme products serving as a supplemental surface treatment.

