Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/48920
Title: Assessment of spatial variability of bedding variables in compost bedded pack barns with climate control system
Keywords: Dairy cattle
Compost barns
Geostatistics
Spatial variability
Issue Date: 2021
Publisher: Academia Brasileira de Ciências (ABC)
Citation: OLIVEIRA, C. E. A. et al. Assessment of spatial variability of bedding variables in compost bedded pack barns with climate control system. Anais da Academia Brasileira de Ciências, [S.l.], v. 93, n. 3, p. 1-14, 2021. DOI: 10.1590/0001-3765202120200384.
Abstract: The aim of this research was to evaluate the spatial distribution of bedding variables in a climate-controlled compost bedded pack barn (CBP) equipped with an evaporative cooling system associated with a tunnel ventilation mode. The study was conducted on a farm in the West Mesoregion of Minas, MG, Brazil. The interior of the animal facility was divided into a mesh of 120 equidistant points, where the bedding surface temperature (tb-sur), the bedding temperature at 0.20 m depth (tb-20) and the bedding penetration resistance (PRb) of layer 0 to 0.20 m depth were measured. Bedding samples were collected to obtain the moisture (Mb) and pH in the surface and at 0.20 m depth. Geostatistics technique was used to evaluate the dependence and spatial distribution. Through the bedding area, the tb-sur presented low variability, with 6 ºC of amplitude, and tb-20 presented highest values (up to 55 °C). The spatial distribution of Mb-20 was similar to that observed on the surface and its highest levels occurred in the region near the feed alley (> 40%). The distribution of pH was similar in both layers. The tendency of high PRb occurred in the layer between 0.15 and 0.20 m (0 and 1500 kPa).
URI: http://repositorio.ufla.br/jspui/handle/1/48920
Appears in Collections:DEG - Artigos publicados em periódicos



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