Milking frequency affects the circadian body temperature rhythm in dairy cows

Kendall, P.E.; Tucker, Cassandra B.; Dalley, D. E.; Clark, D. A.; Webster, Jim

doi:10.1016/j.livsci.2007.12.009

Cited by 51 publications

(37 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In contrast, rain and wind had little effect on the circadian rhythm of body temperature as mean body temperature was higher in early spring than in any other measurement period despite the increased rainfall and windy conditions. Other factors may also play a role in circadian variations in body temperature, particularly locomotor activity and internal heat production associated with milking and intensive grazing, which we have reported previously (Kendall et al, 2008).…”

Section: Discussionmentioning

confidence: 55%

“…Metabolic activity, locomotor activity and physiological changes are all reported to cause short-term perturbations in the body temperature rhythm of cattle (Hahn, 1989). Indeed, pregnant cows have a higher body temperature than cycling cows (Wrenn et al, 1961), while cows milked twice-aday have a higher body temperature during the late afternoon and early evening than cows milked once-a-day (Kendall et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

2009

Self Cite

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 55%

Section: Introductionmentioning

confidence: 99%

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

2009

Self Cite

View full text Add to dashboard Cite

“…Body temperature in cattle exhibits a circadian rhythm with a minimum temperature in the morning and a maximum temperature in the late afternoon (Piccione et al, 2003;Kendall and Webster, 2009). Several variables influence body temperature and the pattern of the circadian rhythm, such as windy and rainy weather conditions , heat stress (Kendall et al, 2006), the effectiveness of cooling methods (Kendall et al, 2007), and milking frequency (Kendall et al, 2008). Furthermore, physiological status (e.g., estrus, pregnancy, lactation) influences the diurnal temperature pattern of dairy cows (Piccione et al, 2003;Kendall and Webster, 2009;Suthar et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Validity of prepartum changes in vaginal and rectal temperature to predict calving in dairy cows

Burfeind

Suthar

Voigtsberger

et al. 2011

Journal of Dairy Science

105

114

View full text Add to dashboard Cite

The prevalence of dystocia is high in many dairy herds and is associated with stillbirth and negative effects for the cow. An accurate predictor of calving would enable supervision of cows more precisely to a relevant time interval so that obstetrical assistance can be provided in a timely manner. This might help to decrease calf mortality rate. Evidence exists that cows exhibit a decrease in body temperature before the onset of calving. The performance of a decrease in body temperature as a test to predict the onset of calving in dairy cows has not been investigated. The objective was to investigate test criteria of a decrease in vaginal and rectal temperature as predictors of calving in dairy cows. In 3 experiments, temperature loggers (Minilog 8, Vemco Ltd., Halifax, Canada) were inserted into the vagina of cows before calving (n = 85), and rectal temperatures were measured twice daily in 55 of these cows. Vaginal temperatures were 0.2 to 0.3 °C and 0.6 to 0.7 °C lower on the day of calving compared with 24 and 48 h before calving, respectively. Rectal temperatures were 0.3 to 0.5 °C and 0.4 to 0.6 °C lower on the day of calving compared with 24 and 48 h before calving, respectively. Vaginal temperatures exhibited a diurnal rhythm during the 120 h before calving, which continued on a lower level during the 48 h preceding parturition. In the 3 experiments, a decrease in vaginal temperature of ≥ 0.3 °C over 24h could predict calving within 24h, with sensitivity ranging from 62 to 71% and specificity ranging from 81 to 87%. Similarly, a decrease in rectal temperature measured at 0730 h of ≥ 0.3 °C could predict calving within 24h, with sensitivity from 44 to 69% and specificity from 86 to 88%. Although dairy cows exhibit a distinctive decrease in vaginal and rectal temperatures commencing approximately 48 h before calving, detecting this decrease does not determine the onset of calving precisely. Nevertheless, it can provide valuable information in addition to the traditional signs (i.e., relaxation of the sacrosciatic ligament) that calving is imminent.

show abstract

“…Weather data (2010)(2011)(2012)(2013)(2014)(2015) were retrieved from meteorological stations. Daily maximum temperature-humidity index was calculated using maximum ambient daily temperature (AT max , °C) and average relative humidity (RH, %) following the equation reported by Kendall et al, (2008) (THI max = (1.8 × AT max + 32) -[(0.55 -0.0055 × RH) × (1.8 × AT max -26)]) and merged with corresponding TD records. This was also done for the 16 d prior to TD.…”

Section: Methodsmentioning

confidence: 99%