Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/58819
Title: Compost barn system and its influence on the environment, comfort and welfare of dairy cattle
Keywords: Dairy cattle
Animal welfare
Installations
Issue Date: 2023
Publisher: Estonian University of Life Sciences
Citation: NEPOMUCENO, G. L. et al. Compost barn system and its influence on the environment, comfort and welfare of dairy cattle. Agronomy Research, [S.l.], v. 21(3), p. 1233-1245, 2023.
Abstract: The aim of this study was to evaluate the effect of the thermal environment on behavioral and physiological parameters of crossbred cows of different productivity levels confined in a compost barn system. For this, air temperature (Tdb) and relative humidity (RH) data were measured using sensors/registers and wind speed (Vair) was recorded with the aid of an anemometer. Subsequently, these data were used to calculate the Temperature and Humidity Index (THI). Bedding material variables (pH and humidity) were also evaluated. The animals were evaluated for physiological variables (respiratory rate – RR and surface temperature – ST), scores (body condition, locomotion and dirt) and behavior. The analyses were carried out on two groups of cows (Group 1: high production vs. Group 2: medium and low production). The average pH of the bedding material was 8.5, within the recommended range. In the case of the physiological responses of the cows, the respiratory rate (RR) of Group 1 indicated better conditions of thermal comfort in the morning vs. the afternoon. The system was efficient in both groups based on body condition score, indicating favorable conditions for the health of the animals. Regarding the behavioral evaluation, Group 1 and 2 were statistically similar and had the longest rumination times, in relation to the other evaluated behaviors. Regarding active periods, medium production were the most active. Regarding idle time, low production spent more time idle than the other animals.
URI: https://agronomy.emu.ee/wp-content/uploads/2023/05/Vol21No3_2023_Nepomuceno.pdf#abstract-9549
http://repositorio.ufla.br/jspui/handle/1/58819
Appears in Collections:DEG - Artigos publicados em periódicos

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.