Compost barns in Brazilian Subtropical region (Part 2): classification through multivariate analysis

Radavelli, Wilian Maurício; Danieli, Beatriz; Zotti, Maria Luísa Appendino Nunes; Gomes, F. J.; Endres, Márcia I.; Schogor, Ana Luiza Bachmann

doi:10.33448/rsd-v9i8.5229

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…Properly designed ventilation in CBP barns influences the comfort of the animals as well as the quality of the bed, assisting in its drying [ 43 , 44 ]. For the ventilation system to be efficient, wind speed throughout the length of the barn of around 3 m∙s −1 has to be provided [ 22 ].…”

Section: Discussionmentioning

confidence: 99%

Compost Dairy Barn Layout and Management Recommendations in Kentucky: A Descriptive Study

Damasceno

Day

Taraba

et al. 2022

Animals

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This study was conducted to describe the building layout and dimensions, characterize the bedding material, and observe the management practices in 42 compost-bedded pack (CBP) barns in Kentucky (USA). The average herd size found in the study was 90 cows and the breeds consisted of Jersey (6.8%), Holstein (72.7%), and mixed (20.5%). The average CBP barn dimensions were 49.1 m (length) by 21.9 m (width). Many of these barns had feed alleys and driveways; overshot ridges with frequent orientation from NE to SW; and green sawdust, kiln-dried sawdust, or a mixture of both as the most common bedding materials. The bed-turning process was performed mechanically at depths of less than 0.25 m, and the loading of fresh material was performed every one to five weeks, varying by season, weather conditions, barn size, and cow density. The average bedding moisture content was found to be 59.0% (wet bulb—w.b.) and ranged from 36.2 to 71.8%. Coliforms were not present in barns that had a higher compost temperature, and the E. coli, Bacillus, and Streptococcus counts were higher in the barns that had a lower moisture content. In conclusion, it was observed that heterogeneous management was used among the barns and that the producers were satisfied with the compost barn system.

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Section: Discussionmentioning

confidence: 99%

Compost Dairy Barn Layout and Management Recommendations in Kentucky: A Descriptive Study

Damasceno

Day

Taraba

et al. 2022

Animals

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Effect of Grazing on the Welfare of Dairy Cows Raised Under Different Housing Conditions in Compost Barns

Danieli,

de Vitt,

Schogor

et al. 2024

Animals

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There is currently no established information for assessing the general welfare conditions and behavior of dairy cows housed in compost-bedded pack barns (CBPs) that allow access to pasture. Therefore, the objective of this study was to evaluate and classify the welfare and behavior of dairy cows in three different housing conditions within CBPs in southern Brazil. During both the cold and hot seasons, nine farms were divided into three groups: CONV (conventional, large, full-time barns), ADAP (conventionally adapted, full-time barns), and PART (part-time barns). The European Welfare Quality® (WQ®) protocol takes into account the characteristics of the animals, animal housing, and farm management to set an overall score to assess animal welfare, which is why WQ® was used in this study. Daytime behavior was monitored over a period of four consecutive hours on two days. The 29 WQ® measures were grouped into 11 criteria, then into four principles, and finally into the general welfare category. The experimental design employed was a randomized block design in a 2 × 3 factorial scheme (two climatic seasons and three groups), with the means of the measures, principles, and criteria for each group, season, and interaction (group × season) compared using the Tukey test. The diurnal behavior of the cows was described by the average absolute frequency of each observed behavioral measure. There were no differences among the groups in any of the measures assessed by the WQ® protocol. However, there was a significant increase in both the incidence of diarrhea and the duration of lying down during the cold season. Only the principle of appropriate behavior varied among the groups, with the PART group demonstrating superior scores. Regardless of the season, the welfare of dairy cows maintained in CBPs was classified as “improved”. No abnormalities in behavior were observed among cows housed in the different groups or seasons. Cows in the PART group laid down less frequently during the hot season. Overall, the CBP system provided favorable welfare and behavioral conditions for cows in Brazil, and access to grazing further enhanced the welfare of animals housed in the PART group.

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Compost barns in Brazilian Subtropical region (Part 2): classification through multivariate analysis

Cited by 2 publications

References 10 publications

Compost Dairy Barn Layout and Management Recommendations in Kentucky: A Descriptive Study

Compost Dairy Barn Layout and Management Recommendations in Kentucky: A Descriptive Study

Effect of Grazing on the Welfare of Dairy Cows Raised Under Different Housing Conditions in Compost Barns

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