Air velocity spatial variability in open Compost-Bedded Pack Barn system with positive pressure ventilation

Oliveira, Carlos Eduardo Alves; Tinôco, Ilda de Fátima Ferreira; Damasceno, Flávio Alves; Oliveira, Victor Crespo de; Rodrigues, Pedro; Ferraz, Gabriel Araújo e Silva; Sousa, Fernanda Campos de; Andrade, Rafaella Resende; Nascimento, João Antônio Costa do; Silva, Leonardo França da

doi:10.1590/0001-3765202320220415

Cited by 1 publication

(1 citation statement)

References 23 publications

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“…However, it is essential to evaluate which forms of thermal conditioning best suit the local reality, considering technical, economic, and social factors [71]. Therefore, regardless of the construction type of the facility, the thermal conditioning techniques to be used must ensure optimal conditions for the animals, allowing them to express their maximum productive and reproductive potential [16,64,79,80].…”

Section: Thermal Comfortmentioning

confidence: 99%

Health and Thermal Comfort of Dairy Cattle in Compost-Bedded Pack Barns and Other Types of Housing: A Comparative Systematic Review

Oliveira,

Tinôco,

Sousa

et al. 2024

AgriEngineering

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This systematic review was conducted to describe and discuss the main research findings available in the literature concerning the health and thermal comfort of dairy cattle housed in Compost-Bedded Pack Barn (CBP) systems, in comparison to Free Stall (FS), Tie-Stall (TS), and/or Loose Housing (LH) systems. Searches for peer-reviewed experimental articles in English were performed in the Scopus and Web of Science databases. Forty-three non-duplicated scientific articles were obtained and subjected to a four-stage evaluation process, according to the PRISMA methodology and predefined eligibility criteria. This process resulted in the selection of 13 articles for inclusion. Regarding animal health, the results provide evidence that the incidence of problems such as lameness, limb injuries, and reproductive disorders is lower in CBP systems. However, if bedding management is not effective in ensuring the provision of dry and comfortable surfaces, an increase in somatic cell count (SCC) and prevalence of mastitis incidence (PMI) may occur. For thermal comfort, it was found that the CBP system exhibited higher temperatures during summer and lower temperatures during winter when compared to FS with cross-ventilation in association with evaporative cooling. However, no differences were observed in terms of thermal comfort in spring and autumn. As this is a recent research area, caution should be exercised when extrapolating the results, considering the specificities of each cited study.

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Section: Thermal Comfortmentioning

confidence: 99%