Contamination of water through salinization will affect the well-being of livestock. Therefore, it is necessary to understand how animals respond to increasing levels of salts in their water supply. This short communication describes the effects of a two-week salinity stress (0, 6, 12 g L^− 1 NaCl) on Pelibuey sheep. The parameters measured in response to salinity stress were animal weight, rectal temperature, and levels of hemoglobin, hematocrits, lymphocytes, neutrophils, leukocytes and proteins. Specific activities of superoxide dismutase (SOD) and catalase (CAT) in blood samples were also recorded. The results showed that the 6 g L^− 1 NaCl treatment resulted in the significantly highest body weight. There were no significant differences in the rectal temperature of animals. In terms of the hematological parameters, animals exposed to 6 g L^− 1 NaCl displayed the significantly highest hemoglobin and hematocrit contents. There appeared to be no effect of consumption of saline water on the amount of lymphocytes, neutrophils, leukocytes or proteins. It was found that animals that consumed 12 g L^− 1 NaCl supplemented water had the lowest levels of SOD activity. There were no significant differences in CAT specific activities in animals exposed to the saline water or the control. This is the first report on the response of Pelibuey sheep to short-term saline stress under Cuban environmental conditions.

盐渍化造成的水污染将影响牲畜的福祉。因此，有必要了解动物对供水中盐分含量增加的反应。这篇短文描述了为期两周的盐度胁迫（0, 6, 12 g L ^{− 1} NaCl）对 Pelibuey 绵羊的影响。响应盐分胁迫而测量的参数是动物体重、直肠温度以及血红蛋白、血细胞比容、淋巴细胞、中性粒细胞、白细胞和蛋白质的水平。还记录了血样中超氧化物歧化酶 (SOD) 和过氧化氢酶 (CAT) 的比活性。结果表明，6 g L ^{− 1}NaCl处理导致显着最高的体重。动物的直肠温度没有显着差异。在血液学参数方面，暴露于 6 g L ^{- 1} NaCl 的动物显示出显着最高的血红蛋白和血细胞比容含量。食用盐水似乎对淋巴细胞、中性粒细胞、白细胞或蛋白质的数量没有影响。发现消耗 12 g L ^{- 1} NaCl 补充水的动物具有最低水平的 SOD 活性。在暴露于盐水或对照的动物中，CAT 比活性没有显着差异。这是关于在古巴环境条件下 Pelibuey 羊对短期盐胁迫的反应的第一份报告。