Fatores Que Influenciam a Sanidade E Conforto Térmico De Bovinos Em Sistemas Compost Barn

Piovesan, Sandra Mara; Oliveira, Daniela dos Santos de

doi:10.31512/vivencias.v16i30.154

Cited by 2 publications

(4 citation statements)

References 6 publications

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“…According to Damasceno (2020), the studies conducted in Brazil are still scarce in terms of efficiency and quality of alternative materials for the bed available in each region. Piovesan and Oliveira (2020) reported in studies in southern Brazil, that the use oatmeal husk as alternative material resulted significant increase in bedding fermentation and BIT increase, indicating favorable results.…”

Section: Arqmentioning

confidence: 89%

“…The temperature range of 43 to 65ºC can be considered reasonable for the composting process (On-Farm…, 1992). However, as it is a process in which the bedding composes a material that undergoes partial composting (Russelle et al, 2009), reaching optimum temperatures becomes a challenge for milk producers. Following this fact, research using Compost barn in Brazil, including the present work, reported systems in which the ideal temperature range was not reached (Mota et al, 2019;Piovesan and Oliveira, 2020).…”

Section: Discussionmentioning

confidence: 99%

“…Brazilian producers have used materials such as peanut shells, coffee shell, and rice straw, according to the availability of these materials in their regions (Damasceno, 2020). Studies have shown the use of alternative materials in Brazil (Oliveira et al, 2019;Piovesan and Oliveira, 2020;Valente et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Carnauba (copernicia prunifera) straw as an alternative bedding material for dairy cows housed in a Compost barn system

Sampaio

Peixoto

Filho

et al. 2021

Arq. Bras. Med. Vet. Zootec.

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The replacement of bedding in compost dairy barns (CB) comprises a recurrent management practice, but bedding materials are often not readily available in all regions and the choice of alternative materials is necessary. The objective was to evaluate the thermal attributes of carnauba straw (CS) bedding in compost dairy barn facilities. Environmental monitoring operations were performed at a commercial farm located in Northeast Brazil. Mini weather stations were used to evaluate environmental variables. The THI was evaluated as one of the comfort parameters. Analysis of the spatial distribution of bed surface temperature (BST) in the CB was performed using geostatistical techniques. The cows remained out of the comfort zone according to THI results. The BST indicated satisfactory performance and from the thermal point of view can be used as alternative bedding material in CB facilities. However, it was observed that the CS showed fast biomass degradation compared to conventional materials, widely known. In addition, inadequate temperature values (< 45°C) were found in the deeper of the CS bed, signaling higher risks of pathogenic microbial activity. Additional studies are needed for searching the proper management plans that increase the life span of the bed formed by carnauba straw.

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Section: Arqmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 99%

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Carnauba (copernicia prunifera) straw as an alternative bedding material for dairy cows housed in a Compost barn system

Sampaio

Peixoto

Filho

et al. 2021

Arq. Bras. Med. Vet. Zootec.

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“…The use of confined systems for housing of dairy cows has been growing among dairy farmers, with the aim of optimizing land use, ensuring animal welfare, and providing greater animal comfort [1,2]. Among them, the compost-bedded pack barn (CBPB) housing system, which is characterized by an open bedding area, without individual stalls, and with a bedding surface covered with organic material, is one of the most used confinement systems for dairy cows.…”

Section: Introductionmentioning

confidence: 99%

Factors Influencing Milk Quality and Subclinical Mastitis in Dairy Herds Housed in Compost-Bedded Pack Barn System

Nogara,

Busanello,

Tavares

et al. 2023

Animals

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The compost-bedded pack barn (CBPB) system has been increasingly adopted by dairy farms due to its ability to enhance animal comfort and milk production. This study evaluated the associations among bedding characteristics, milk quality and composition, and subclinical mastitis (SCM) occurrence in dairy herds housed in CBPB systems. Over a period of six months, data related to milk quality and udder health and bedding sampling were collected from eight dairy farms. Monthly measurements of the bedding temperature and wind speed inside the CBPB were taken, while temperature and relative humidity data inside the CBPB were recorded using a datalogger. Bedding samples were subjected to analysis of moisture, pH, microbiological count, and carbon/nitrogen ratio. Data on milk composition (fat, protein, milk urea nitrogen, and total solids) and quality (somatic cell count and standard plate count) of bulk tank milk were obtained from DHIA results. Canonical correlation analyses were used to evaluate the association between the analyzed group variables, and linear regression models were used to identify associations between bedding characteristics and SCM occurrence in the studied herds. The bedding characteristics that most influenced milk composition and quality were moisture, temperature at 30 cm depth (T30), and bedding pH. Environmental variables played an important role in bedding composting, as they were closely related to the surface temperature and pH. Overall, 62.71% of the variation in milk quality and composition could be explained by the bedding variables, and 77.50% of the variation in the bedding variables was associated with environmental variables. Median SCM prevalence and incidence were 28.6 and 13.8%, respectively. An increase of 1 °C for T30 resulted in a 0.6% reduction in the prevalence of SCM. Additionally, the bedding surface temperature at 22.3 °C resulted in the highest incidence of SCM (~18.1%). Our results demonstrate the importance of controlling microclimatic conditions in the CBPB to optimize the bedding composting process and milk quality.

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Fatores Que Influenciam a Sanidade E Conforto Térmico De Bovinos Em Sistemas Compost Barn

Cited by 2 publications

References 6 publications

Carnauba (copernicia prunifera) straw as an alternative bedding material for dairy cows housed in a Compost barn system

Carnauba (copernicia prunifera) straw as an alternative bedding material for dairy cows housed in a Compost barn system

Factors Influencing Milk Quality and Subclinical Mastitis in Dairy Herds Housed in Compost-Bedded Pack Barn System

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