Compost Dairy Barns in Minnesota: A Descriptive Study

Barberg, Abby E.; Endres, Márcia I.; Janni, K. A.

doi:10.13031/2013.22606

Cited by 55 publications

(157 citation statements)

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“…However, mean concentration of total bacteria on the bedding surface was mostly > 8.0 log10 cfu/g for all farms during the course of the study. Likewise, Barberg et al (2007) and Black et al (2014) reported that mean concentration of total bacteria on the CBP bedding surface was 7.0 log10 cfu/cc and 8.2 log10 cfu/g, respectively.…”

Section: Factors Associated With Bedding Bacterial Concentrationsmentioning

confidence: 90%

“…Bedding samples were collected biweekly by a trained farm personnel, as described by Barberg et al (2007). All samples were collected immediately before milking time (approximately 10 hours after bedding was last revolved) and kept frozen until monthly pick up.…”

Section: Farm Selection and Sampling Strategymentioning

confidence: 99%

“…Despite using different laboratory methodologies, results of recent studies demonstrated that compost bedding contains high bacterial concentrations. Barberg et al (2007) and Black et al (2014) reported that concentration of total bacteria on the CBP bedding surface was 9.1 × 10 6 cfu/cc and 158 × 10 6 cfu/g, respectively. Lobeck, Endres, Janni, Godden, and Fetrow (2012) reported that mean concentration of coliforms, Klebsiella spp, and streptococci were 14000, 280, and 3 × 10 6 cfu/mL of bedding solution, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…Bedding is aerated twice a day between milking time to incorporate animal waste and ensure that the composting process continues aerobic and results in a comfortable, dry, and clean bedding surface to the animals. New bedding material is added systematically and after periods as long as 1 year, the bedding can be entirely replaced and used as fertilizer (Barberg, Endres, & Janni, 2007;Janni et al, 2007). Tucker, Weary, & von Keyserlingk, 2004).…”

Section: Introductionmentioning

confidence: 99%

“…Nonetheless, results of recent studies indicated that temperatures observed in the deep layers of the CBP (< 48.1 °C) are not high enough to substantially decrease bacterial concentrations in the material (Barberg et al, 2007;Shane, Endres, & Janni, 2010;Black et al, 2014). Despite using different laboratory methodologies, results of recent studies demonstrated that compost bedding contains high bacterial concentrations.…”

Section: Introductionmentioning

confidence: 99%

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Longitudinal Trends and Associations between Compost Bedding Characteristics and Bedding Bacterial Concentrations

Favero¹,

Portilho²,

Oliveira³

et al. 2015

JAS

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The objectives were to quantify bedding concentrations of total bacteria and selected groups of mastitis pathogens (coliforms and streptococci), to identify bedding factors associated with these bacterial populations, and to describe longitudinal variation of bedding characteristics. Bedding samples from the superficial and deep (20 cm) layers were collected biweekly during 1 year from 3 compost bedded pack (CBP) dairies. Bedding bacterial concentrations and physical-chemical characteristics (moisture, organic matter, carbon-nitrogen ratio (C/N), pH, and density) were determined. Mixed models were used to identify predictors for bacterial concentrations. Shewhart control charts were produced to describe longitudinal variation of bedding characteristics and define alerts of out-of-control variation. Bedding temperature was greater in the deep layer than on the surface (difference = 27.0, 12.1, and 14.4 °C for farms A, B and C, respectively). Except for farm B, bacterial concentrations were greater on the surface than in the deep layer. Organic matter and dry density were associated with concentration of total bacteria and coliforms. For all farms, C/N (positive association) and dry density (negative association) were associated with bedding concentration of streptococci. Deep temperature and moisture remained within the control limits defined in farm A and B during most of the period, whereas 7 and 9 alerts for temperature and moisture were observed on farm C, respectively. For all farms, organic matter, C/N, and pH exhibited great variation, resulting in several out-of-control alerts. Results of this study can be used to manage the CBP towards reducing cows' exposure to mastitis pathogens.

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Section: Factors Associated With Bedding Bacterial Concentrationsmentioning

confidence: 90%

Section: Farm Selection and Sampling Strategymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Longitudinal Trends and Associations between Compost Bedding Characteristics and Bedding Bacterial Concentrations

Favero¹,

Portilho²,

Oliveira³

et al. 2015

JAS

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Thermoregulatory, behavioral, and productive responses and physical integrity of primiparous and multiparous cows on compost barn in Brazilian tropical conditions

2023

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Innovative bedding materials for compost bedded pack barns: enhancing dairy cow welfare and sustainable dairy farming

Eberl,

Smith,

Megram

et al. 2024

Environ Dev Sustain

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Compost bedded pack (CBP) barns are an innovative housing system that improves the comfort and welfare of dairy cows, compared to cubicle style housing or free stalls with artificial surfaces, such as rubber or concrete. This type of bedding system also has the potential to improve lameness scores, overall health, welfare, and productivity of dairy cows. In CBP barns, carbon materials or organic materials are composted in the barn while being used as bedding for livestock. The animals pass manure on these surfaces providing the nitrogen, microorganisms, and moisture necessary for the composting process. Historically, dry sawdust originating from mills, furniture and pallets have been used as a substrate for compost. However, due to these materials becoming increasingly expensive and hard to source, other materials have been trailed as potential substitutes. Furthermore, there is an increasing interest in making dairy production more environmentally friendly by reducing carbon footprint. This review summarises and highlights appropriate alternative materials that, subject to their management, can be successfully used in the CBP barn system. This will act as an aid for farmers and decision makers when choosing materials to be incorporated in CBP barns. Using alternative materials to sawdust, wood chips and wood shavings, which are the current industry standard, will contribute to a more circular economy and sustainable dairy production, while simultaneously contributing to sustainable development goals, and improved animal health and welfare.

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Compost Dairy Barns in Minnesota: A Descriptive Study

Cited by 55 publications

References 0 publications

Longitudinal Trends and Associations between Compost Bedding Characteristics and Bedding Bacterial Concentrations

Longitudinal Trends and Associations between Compost Bedding Characteristics and Bedding Bacterial Concentrations

Thermoregulatory, behavioral, and productive responses and physical integrity of primiparous and multiparous cows on compost barn in Brazilian tropical conditions

Innovative bedding materials for compost bedded pack barns: enhancing dairy cow welfare and sustainable dairy farming

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