Influence of External Thermal Conditions on Temperature–Humidity Parameters of Indoor Air in a Czech Dairy Farm during the Summer

Kic, Pavel

doi:10.3390/ani12151895

Cited by 12 publications

(8 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This consideration, although the number of sheds in our study was decidedly lower, also appears to be valid for Mugello where some sheds have sprayers and fans while others have none. The sheds construction materials also have their influence, concerning this a recent study conducted in the Czech Republic (Kic 2022 ) showed as older brick cowsheds, used after reconstruction and modernization in many cases, for housing certain groups of cows, such as dry cows, or before and after calving, have a better heat storage. This is reflected in a good attenuation of indoor air temperatures and a shift of the highest temperatures by several hours.…”

Section: Discussionmentioning

confidence: 99%

Temperature–humidity index monitoring during two summer seasons in dairy cow sheds in Mugello (Tuscany)

et al. 2023

View full text Add to dashboard Cite

Many studies have reported that the impact of high temperatures affects physiology, welfare, health, and productivity of farm animals, and among these, the dairy cattle farming is one of the livestock sectors that suffers the greatest effects. The temperature–humidity index (THI) represents the state of the art in the evaluation of heat stress conditions in dairy cattle but often its measurement is not carried out in sheds. For this reason, the aim of this study was the monitoring of the THI in three dairy cattle farms in Mugello (Tuscany) to understand its influence on dairy cows. THI values were calculated using meteorological data from direct observation in sheds and outdoor environments. Data relating to the animal’s behavior were collected using radio collars. The Pearson test and Mann–Kendall test were used for statistical analysis. The results highlighted a significant (P < 0.001) upward trend in THImax during the last 30 years both in Low Mugello (+ 1.1 every 10 years) and in High Mugello (+ 0.9 every 10 years). In Low Mugello sheds, during the period 2020–2022, more than 70% of daytime hours during the summer period were characterized by heat risk conditions (THI > 72) for livestock. On average the animals showed a significant (P < 0.001) decrease in time spent to feeding and rumination, both during the day and the night, with a significant (P < 0.001) increase in inactivity. This study fits into the growing demand for knowledge of the micro-climatic conditions within farms in order to support resilience actions for protecting both animal welfare and farm productivity from the effects of climate change. This could also be carried out thanks to estimation models which, based on the meteorological conditions forecast, could implement the thermal stress indicator (THI) directly from the high-resolution meteorological model, allowing to get a prediction of the farm’s potential productivity loss based on the expected THI.

show abstract

Section: Discussionmentioning

confidence: 99%

Temperature–humidity index monitoring during two summer seasons in dairy cow sheds in Mugello (Tuscany)

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Metric (fiber length), morphological (skin thickness), and morphometric (fiber diameter) methods were used (4,12). The Temperature and Humidity Index (THI) was calculated according to the following formula: THI=0.8 x dry bulb temperature of the air + (relative humidity x (dry bulb temperature of the air -14.4)/100+46.4 (14). A statistical analysis of the skin thickness and coat characteristics (weight, length and diameter) traits was performed using commercial statistical program (Statistica 10.0, StatSoft Inc. Tulsa, OK, USA), based on a linear model that included the effect of the breed and season, and the interaction between breed and season.…”

Section: Methodsmentioning

confidence: 99%

Growth Dinamics on the Skin and the Coat in Normandian and Simmental Cattle During Adaptation to the Farming Technology in Southwestern Part of Bulgaria

Markov

Stoycheva

Bancheva

et al. 2022

Macedonian Veterinary Review

View full text Add to dashboard Cite

The aim of the present study was to identify the adaptability of Normandy cows raised in a loose system to the climatic and technological conditions and to compare their adaptability with already acclimatized Simmental cows in one farm in Southwestern Bulgaria. Total of 20 cows at same age (II – IV lactation) and same body weight (630-660 kg) from both breeds were classified into 2 groups (each having 10 cows) and subjected to skin thickness measurement, fibers total weight determination and fiber categorization during the winter and summer season. The results have shown that during the winter season, the Normandy breed had significantly higher skin thickness at the elbow compared to the Simmental breed, whereas no differences were observed in the skin thickness between both breeds either at the neck or at the middle of the last rib. During the summer season, the differences on the skin thickness compared to the Simmental breed were observed at the neck (p<0.05), whilst at the elbow and at the middle of the last rib no differences were recorded (p>0.05). During the winter seasons, the coat of Normandy cows contained more soft fibers in comparison to the Simmentals cows. Furthermore, the changes in the observed parameters, influenced by climatic conditions showed similar pattern in both breeds. It can be concluded that the two breeds have emphasized their genetic potential and have a good adaptability to the temperate continental climate of the region.

show abstract

“…While the natural sounds are related to the animals, mechanical ones come from devices installed inside the barn or periodically pass through the building or its surroundings. One example of a permanent noise source is mechanical ventilation, which depends on the structure of barns (Herbut and Angrecka, 2015;Kic, 2017Kic, , 2022. The selection of the type of fans and air mixers is based on technical specifications which determine, among others, the power, efficiency, and volume of the operating equipment.…”

Section: Sources and Intensity Of Sound In Cattle Barn/facilitiesmentioning

confidence: 99%

Noise as a factor of environmental stress for cattle – A review

Angrecka

Solecka

Vieira

et al. 2023

Annals of Animal Science

View full text Add to dashboard Cite

One of the minor studied stress factors in cattle breeding is noise. Noise is any unwanted chronic or intermittent sound and the amount and type of noise sources are related to the cattle production system. The aim of the review was to highlight the literature regarding noise as a robust environmental stressor and the following impact on the behavioural, physiological and performance reactions of cattle. In addition, was showed how often this problem is discussed in the scientific literature. Review was conducted with a search strategy of peer-reviewed articles written in English before June 2022. The systematic searches were performed using the Web of Science and Scopus databases with the integration of Boolean operators to string together words or phrases. It is recommended to create an environment around cows in which the acoustic stimuli affecting the animals are under their control. Therefore, if the sound source cannot be eliminated, animals should be able to choose places with a lower sound intensity appropriate for the perceptual abilities of cattle. On the other hand, attention is paid to the positive aspects of some groups of sound signals i.e. positive nature of music for cows and people during milking. The scientific publications analysed by the methodology drew attention to the repeatability of the discussed results. Further research on this subject should be considered because developing farms use modern solutions in barns which can negatively affect the acoustic comfort of cows, and their impact has yet to be determined.

show abstract

Influence of External Thermal Conditions on Temperature–Humidity Parameters of Indoor Air in a Czech Dairy Farm during the Summer

Cited by 12 publications

References 49 publications

Temperature–humidity index monitoring during two summer seasons in dairy cow sheds in Mugello (Tuscany)

Temperature–humidity index monitoring during two summer seasons in dairy cow sheds in Mugello (Tuscany)

Growth Dinamics on the Skin and the Coat in Normandian and Simmental Cattle During Adaptation to the Farming Technology in Southwestern Part of Bulgaria

Noise as a factor of environmental stress for cattle – A review

Contact Info

Product

Resources

About