Performance of Turkeys in Enrichment Environment with Perches and Outdoor Access under Tropical Conditions

González-Zapata, FA; García, José Roberto Sanginés; Piñeiro-Vázquez, Ángel Trinidad; Velázquez-Madrazo, PA; Itzá-Ortíz, Mateo; Vargas‐Bello‐Pérez, Einar; Chay-Canul, Alfonso J.; Aguilar-Urquizo, Edgar

doi:10.1590/1806-9061-2021-1553

Cited by 1 publication

(2 citation statements)

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“…The chosen thresholds for enthalpy (≥67 kJ/kg) and THI (≥81) of outer air were suspected of causing severe heat stress and severe discomfort, respectively. The effects of such high values on poultry can be manifold and might result in poorer meat quality [ 8 , 10 ], lower productivity [ 9 , 10 , 19 ], or an increased mortality rate [ 9 , 18 , 19 ]. However, although heat stress might already occur at lower values in turkey flocks, this study aimed to show how more extreme weather situations might impair turkeys’ health and welfare due to an ongoing climate change in future.…”

Section: Discussionmentioning

confidence: 99%

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Heat Stress Trends in Regions of Intensive Turkey Production in Germany—A Challenge in Times of Climate Change

Sake,

Volkmann,

Kemper

et al. 2023

Animals

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This study analyzed trends of enthalpy and the temperature–humidity index (THI) over a period of 50 years in outer air, which lead to severe heat stress in turkeys. Weather station data from 15 German districts with high densities of turkey production were used to investigate the heat input into the barns. Therefore, the parameters of enthalpy and THI with specified thresholds were used for heat stress assessment. Trends in extreme weather situations where these thresholds were exceeded were analyzed and tested for significance using the Mann–Kendall test. In all districts, the heat load increased between 1973 and 2022 for both parameters. Statistically significant heat stress trends were found in 9 of the 15 districts for enthalpy and 14 out of 15 districts for THI. Thus, the established THI thresholds seem to be more sensitive for the detection of heat stress than the chosen enthalpy values. As heat stress is an important issue and a rising concern in times of climate change, farmers and constructors of farm animal facilities should take this into account in future sustainable work.

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Section: Discussionmentioning

confidence: 99%

“…Behavioral changes such as lethargy, less activity, and seeking for cooler areas could be observed. If no counter measures are taken and heat stress persists, productivity is affected negatively, and the mortality rate can increase [ 17 , 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%