Please use this identifier to cite or link to this item: http://hdl.handle.net/11452/26355
Title: The effect of body weight on some welfare indicators in feedlot cattle in a hot environment
Authors: Uludağ Üniversitesi/Veteriner Fakültesi/Hayvan Bilimleri Anabilim Dalı.
0000-0002-5611-4993
0000-0002-4341-5842
0000-0001-9138-4422
Dikmen, Serdal
Üstüner, Hakan
Orman, Abdulkadir
A-5731-2018
AAG-9127-2021
AAG-9134-2021
8280302600
16065222700
24335834100
Keywords: Biophysics
Environmental sciences & ecology
Meteorology & atmospheric sciences
Physiology
Behavior
Feedlot cattle
Heat stress
Welfare
Lactating dairy-cows
Heat-stress
Holstein cows
Temperature
Performance
Shade
Surface
Traits
Bos
Issue Date: Mar-2012
Publisher: Springer
Citation: Dikmen, S. vd. (2012). "The effect of body weight on some welfare indicators in feedlot cattle in a hot environment". International Journal of Biometeorology, 56(2), 297-303.
Abstract: Heat stress has important effects on the welfare of livestock. The effects of heat stress in cattle include changes in biological functions and behaviors. The aim of this study was to investigate the behavioral differences between light and heavy feedlot cattle reared in a hot environment. Sixteen male Holstein feedlot cattle were allocated to light (353.8 +/- 15.5 kg, n = 8) and heavy (737.1 +/- 15.8 kg, n = 8) groups according to their live weight and were kept in a semi-open feedlot barn. The individual behavioral response variables measured were standing, lying, feeding, drinking, ruminating, locomotor activity and elimination (urinating and defecating). The effects of group, day, observation time, replicate and all interactions were included in an explanatory statistical (GLM) model. The data were analyzed using the PROC GLM procedure of SAS. Overall, the heavy cattle spent more time standing (P < 0.001), lying (P < 0.001), and eliminating (P < 0.05) compared to the light group. In contrast, the light group spent more time eating, drinking and ruminating (P < 0.001). Locomotor activity did not differ significantly between groups (P > 0.05). During the day, heavy cattle spent more time standing (at 1600 hours) and less time eating in comparison with the light cattle (P < 0.001) (at 1300 and 1600 hours). Light and heavy feedlot cattle behaved differently in a hot environment. The findings of the study indicate that the welfare of the heavy Holstein feedlot cattle was impacted negatively when the ambient temperature was high (at 1300 hours).
URI: https://doi.org/10.1007/s00484-011-0433-6
https://link.springer.com/article/10.1007%2Fs00484-011-0433-6
http://hdl.handle.net/11452/26355
ISSN: 0020-7128
1432-1254
Appears in Collections:Web of Science

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