Effect of heat stress on acid-base balance in Polish Merino sheep

被引：11

作者：

Wojtas, Krzysztof ^{[1
]}

Cwynar, Przemyslaw ^{[1
]}

Kolacz, Roman ^{[1
]}

Kupczynski, Robert ^{[1
]}

机构：

[1] Wroclaw Univ Environm & Life Sci, Fac Biol & Anim Sci, Dept Environm Hyg & Anim Welf, PL-51630 Wroclaw, Poland

来源：

ARCHIV FUR TIERZUCHT-ARCHIVES OF ANIMAL BREEDING | 2013年 / 56卷

关键词：

sheep; heat stress; acid-base balance; cortisol; air movement; LACTATING EWES; SUPPLEMENTATION; RESPONSES; CLIMATE; SHADE; COWS;

D O I：

10.7482/0003-9438-56-092

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

Effect of heat stress on changes in acid-base balance, physiological parameters and cortisol level were evaluated in Polish Merino sheep. Fifteen sheep were exposed to high temperature conditions (30 degrees C) in order to induce heat stress. All environmental parameters such as temperature, humidity and air movement were monitored. A decrease of partial pressure of CO2 (pCO(2)) in blood and concentration of total CO2 tCO(2)) and an increase of pO(2) were observed. The cortisol level also significantly increased. In the next stage of the experiment the soothing effect of air movement was examined. An increased air movement led to reduction of thermal stress. An increase in pCO(2) and decrease in cortisol level were observed. The study showed that heat stress leads to changes in acid base balance and cortisol secretion. Air movement has a soothing effect on heat stress in Polish Merino sheep.

引用

页码：917 / 923

页数：7

共 22 条

[1] Physiological responses of Australian Merino wethers exposed to high heat load [J].

Alhidary, I. A. ;

Shini, S. ;

Al Jassim, R. A. M. ;

Gaughan, J. B. .

JOURNAL OF ANIMAL SCIENCE, 2012, 90 (01) :212-220

[2] Effects of shade and flaxseed supplementation on the welfare of lactating ewes under high ambient temperatures [J].

Caroprese, M. ;

Albenzio, M. ;

Bruno, A. ;

Annicchiarico, G. ;

Marino, R. ;

Sevi, A. .

SMALL RUMINANT RESEARCH, 2012, 102 (2-3) :177-185

[3] Effect of heat stress on production of Mediterranean dairy sheep [J].

Finocchiaro, R ;

van Kaam, JBCHM ;

Portolano, B ;

Misztal, I .

JOURNAL OF DAIRY SCIENCE, 2005, 88 (05) :1855-1864

[4]

Gaughan John, 2009, V1, P131, DOI 10.1007/978-1-4020-8921-3_7

[5]

Goel N., 2012, PAEDIAT CHILD HLTH, V22, P142, DOI [DOI 10.1016/J.PAED.2011.09.005, 10.1016/j.paed.2011.09.005]

[6]

Greenbaum J., 2005, CURR ANAESTH CRIT CA, V16, P137, DOI [10.1016/j.cacc.2005.03.009, DOI 10.1016/J.CACC.2005.03.009]

[7]

HABEEB AAM, 1992, FARM ANIMALS AND THE ENVIRONMENT, P27

[8]

Hahn GL, 1999, J ANIM SCI, V77, P10

[9] NET ENERGETIC AND THERMOREGULATORY EFFICIENCY DURING PANTING IN SHEEP [J].

HALES, JRS ;

BROWN, GD .

COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY, 1974, 49 (3A) :413-422

[10]

Houpt T.R., 1989, DUKES PHYSL DOMESTIC, P486

← 1 2 3 →