Season and physiological status affects the circadian body temperature rhythm of dairy cows

Kendall, P.E.; Webster, James R.

doi:10.1016/j.livsci.2009.04.004

Cited by 121 publications

(84 citation statements)

References 20 publications

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“…Rectal and auricular temperature values changed with time of day, and in relation to breed and side of collection. Breed differences in body temperature have also been reported in cows, as Holstein cows were found to have higher body temperature than Jersey and Brown Swiss cows (Kendall and Webster 2009 …”

Section: Discussionmentioning

confidence: 90%

Accuracy of auricular temperature determination as body temperature index and its daily rhythmicity in healthy dog

Piccione

Giannetto

Fazio

et al. 2011

Biological Rhythm Research

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To establish the accuracy of the auricular temperature assessment in alternative to the rectal temperature determination in canine medicine, we compared the rhythmicity of rectal temperature with the rhythmicity of auricular temperature in healthy dogs. Eight Rottweilers, eight Beagles and eight Teckels were housed in individual pens under natural photoperiod and environmental conditions. Rectal and auricular temperatures were recorded every 3 hours over a 48 hour period. A significant effect of time of day, breed and side of temperature collection on the temperature values was observed. Strong similarity between rectal and auricular temperature trend and daily rhythmicity was observed. In dogs, it could be possible to utilize auricular temperature for estimating body temperature, taking into consideration that it is 1.38C lower than rectal temperature.

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Section: Discussionmentioning

confidence: 90%

Accuracy of auricular temperature determination as body temperature index and its daily rhythmicity in healthy dog

Piccione

Giannetto

Fazio

et al. 2011

Biological Rhythm Research

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show abstract

“…The daily relative humidity and ambient temperature in the farm area were collected from the nearest meteorological station, approximately 10 km far away. These raw data were used to calculate the temperature-humidity index (THI), using a previously reported equation (Kendall and Webster 2009)…”

Section: Animals and Managementmentioning

confidence: 99%

Economic impacts of calving season and parity on reproduction and production traits of buffaloes in the sub-tropics

Hassan

Ali

2017

Environ Sci Pollut Res

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In order to enhance the profitability of dairy buffaloes, it is necessary to develop an understanding of the factors affecting their reproduction and milk production ability. Thus, the objective of this study was to elucidate the economic impacts of calving season and parity on reproduction and production indices of Egyptian dairy buffaloes (1180) reared under subtropical environmental conditions. Buffaloes calving in the autumn season had lesser days open, calving interval, and service per conception (108.25 days, 414.16 days, and 1.67, respectively), while spring calvers showed the greater calculations (210.27 days, 522.82 days, and 2.39, respectively). The buffaloes calving for the first time had the longest days open, calving interval, and number of services per conception among different parities (176.21 days, 490.05 days, and 2.18, respectively), then decreased thereafter. Furthermore, buffaloes calving in the winter season had the significantly highest total milk yield, milk revenue, total revenue, profit, and profit/cost ratio (1981.4 kg, 1769.1 $, 2019.5 $, 662.9 $, and 0.49, respectively) in comparison with other seasons. The total milk yield, lactation period, profit, and profit/cost ratio were increased to reach the peak values in the fourth parity (2051.5 kg, 252.44 days, 674.8 $, and 0.48, respectively), then decreased thereafter. In conclusion, buffaloes at the fourth parity and those calving in the winter season had the best milk yield, milk revenue, total revenue, and profit/cost ratio. Therefore, breeders must pay more attention to calving season and parity as they play an important role in the farm profitability and productivity and should counteract the adverse effects of periodical and seasonal changes. It is recommended to make estrus synchronization for more calvings in the winter season. Finally, choose the best lifetime for keeping the animal in production.

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“…The daily relative humidity and ambient temperature in the farm area were collected from the nearest meteorological station, approximately 10 km away from the farm site. These raw data were used to calculate the daily THI at TAI, using a previously reported equation (Kendall and Webster, 2009)…”

Section: Metrological Datamentioning

confidence: 99%

Impact of thermal stress on the efficiency of ovulation synchronization protocols in Holstein cows

El‐Tarabany

El-Tarabany

2015

Animal Reproduction Science

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Season and physiological status affects the circadian body temperature rhythm of dairy cows

Cited by 121 publications

References 20 publications

Accuracy of auricular temperature determination as body temperature index and its daily rhythmicity in healthy dog

Accuracy of auricular temperature determination as body temperature index and its daily rhythmicity in healthy dog

Economic impacts of calving season and parity on reproduction and production traits of buffaloes in the sub-tropics

Impact of thermal stress on the efficiency of ovulation synchronization protocols in Holstein cows

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