01658naa a2200325 a 450000100080000000500110000800800410001910000130006024501090007326000090018252007470019165000220093865000220096065000170098265000100099965000190100965000100102865000100103865000190104865000220106765000100108965000220109965000170112165300290113865300310116765300150119865300230121370000170123677300790125320617442017-01-25       1980    bl uuuu     u00u1 u    #d1 aMORE, T.  aEffect of water deprivation on blood and urine components of lactating sheep under semi-arid conditions.  c1980  aAbstract : Water was liberally provided once every 24, 72 and 96 h to 21 lactating Chokla sheep which were bled on days 30 and 60 after lambing. Watering every 96 h depressed extracellular fluid values on days 30 and 60; drinking every 24 and 72 h reduced the values on day 60. Dehydration significantly increased plasma free fatty acids and urea nitrogen but there was a decrease in Hb and haematocrit. There was no definite trend in plasma sodium, potassium or bicarbonate concentration during dehydration, but there were increases in urine osmolarity and conductivity and also sodium concentration. The findings indicated that lactating Chokla ewes can tolerate dehydration for 3 to 4 days during rains and mild summer in a semi-arid area.  aAnimal physiology  aAnimal production  aBiochemistry  aIndia  aSemiarid zones  aSheep  aÁgua  aDesidratação  aFisiologia animal  aOvino  aProdução animal  aResistência  aNecessidade fisiológica  aPhysiological requirements  aSemiárido  aWater requirements1 aSAHNI, K. L.  tThe Indian Journal of Animal Sciencesgv. 50, n. 5, p. 411-416, May. 1980.