Physiological Responses and In-Vitro Volatile Fatty Acid Production in Cattle

Rai, Sunil Kumar; Singh, Sukriti; Soren, Simson

doi:10.20546/ijcmas.2017.602.012

Cited by 4 publications

(2 citation statements)

References 15 publications

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“…Results clearly indicated higher magnitude of increase in ear surface temperature at higher THI and in Karan Fries cows than lower THI and Tharparkar. The results of the present study is in accordance to those of Kumar et al (2017) who reported an increase in surface body temperature in crossbred cattle. Roberto and De Souza (2014) reported that ST can be used as an indicator of animal welfare.…”

Section: Peripheral Blood Flowsupporting

confidence: 93%

Impact of temperature humidity index (THI) on physiological responses and milk yield of Tharparkar and Karan Fries cows exposed to controlled environment

Singh¹,

Kumar

2021

J. Agrometeorol.

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Tharparkar and Karan Fries cows were exposed to 25°C, 35°C and 42°C with relative humidity of 50±5%, corresponding to THI of 72.2, 85.3 and 91.0, respectively for three hours continuously for three days consecutively in the control climatic chamber. At THI of 91.0, physiological responses i.e. RR/ min, PR/min and RT (°F) increased by 14, 13, and 1.18 in Tharparkar and 23, 14 and 2.98 in Karan Fries cows, respectively over pre exposure values. At THI of 91.0, the surface body temperature was increased over THI 72.2 by 5.21 to 7.52°C in Tharparkar and 7.45 to 8.42°C in Karan Fries cows. Skin blood flow of Karan Fries cows was increased by 4.98, 4.15 and 3.95 PU at THI 85.3 and 6.84, 9.18 and 8.04 PU at 91 THI over the pre exposure values of respective THI at dorsal, ventral and ear part of body, respectively. The decrease in milk yield was calculated in the THI range of 72.2 - 91.0, the milk yield was decrease (per unit increase in THI) by 135.11ml in Karan Fries and 51.60 ml in Tharparkar cows. The results of the study clearly indicated the more sensitivity of Karan Fries compared to Tharparkar cows at higher THI. Therefore, Karan Fries cows needs protection from extreme heat for sustained production performance.

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Section: Peripheral Blood Flowsupporting

confidence: 93%

Impact of temperature humidity index (THI) on physiological responses and milk yield of Tharparkar and Karan Fries cows exposed to controlled environment

Singh¹,

Kumar

2021

J. Agrometeorol.

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“…The significance of this increased RR under heat stress is that it enables the animals to dissipate the excess of the body heat by respiratory evaporative cooling through the expired air, which accounts for 30% of the total heat dissipation from the body [10]. Davinder [11] reported significantly (p<0.01) higher RR in KF and Murrah calves during summer than winter season.…”

Section: Physiological Responsesmentioning

confidence: 99%

Impact of heat stress and hypercapnia on physiological, hematological, and behavioral profile of Tharparkar and Karan Fries heifers

Pandey¹,

Hooda²,

Kumar³

2017

Vet World

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Aim: The present investigation was undertaken to study the impact of heat stress and hypercapnia on physiological, hematological, and behavioral profile of Tharparkar and Karan Fries (KF) heifers. Materials and Methods:The animals of both the breeds of Tharparkar and KF were exposed at different temperatures and CO 2 levels. Exposure conditions of 25°C, 400 ppm CO 2 level, and 60% relative humidity (RH) were taken as a control condition. The exposure conditions 40°C with two levels of CO 2 500 ppm and 600 ppm with RH 55±5% and exposure conditions 42°C with two levels of CO 2 500 ppm and 600 ppm with RH 55±5% were taken as treatments. The exposure period in each condition was 4 h daily for 5 consecutive days. Results: Physiological responses (respiration rate [RR], pulse rate [PR], and rectal temperature [RT]) were significantly (p<0.01) higher and different during all exposure conditions compared to control condition in both the breeds of cattle. KF heifers had higher RR, PR, and RT than Tharparkar heifers. Hematological parameters, namely, red blood cell, hemoglobin, and packed cell volume were significantly higher and different during all exposure condition than control in both the breeds, whereas no significant changes were observed in total leukocyte count and differential leukocyte count. Blood pH increased with increase in temperature and CO 2 levels and was significantly higher than control conditions. PCO 2 and base excess were significantly (p<0.05) lower, and PO 2 was higher during different exposure conditions than control in both breeds. Restlessness and excitement signs were observed in all the exposure conditions as compared to control condition in both the breeds. Conclusion:Changes in physiological responses, behavioral pattern, and hematological parameters reflect the current functional status of the body system, and it can be used as an index for assessing the adaptation capacity of cattle to predict changes occurring in climate variables due to increasing CO 2 levels and environmental temperature.

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Physiological changes and blood flow in different breeds of dairy cows during different seasons

Aggarwal

Dar

Vats

et al. 2019

Biological Rhythm Research

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Physiological Responses and In-Vitro Volatile Fatty Acid Production in Cattle

Cited by 4 publications

References 15 publications

Impact of temperature humidity index (THI) on physiological responses and milk yield of Tharparkar and Karan Fries cows exposed to controlled environment

Impact of temperature humidity index (THI) on physiological responses and milk yield of Tharparkar and Karan Fries cows exposed to controlled environment

Impact of heat stress and hypercapnia on physiological, hematological, and behavioral profile of Tharparkar and Karan Fries heifers

Physiological changes and blood flow in different breeds of dairy cows during different seasons

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