{"title":"中暑和酷暑下呼吸反应对大足类有袋动物血气值的影响","authors":"Terence J. Dawson, R.W. Rose","doi":"10.1016/0010-406X(70)90957-6","DOIUrl":null,"url":null,"abstract":"<div><p></p><ul><li><span>1.</span><span><p>1. Blood pH, <em>p</em>O<sub>2</sub> and <em>p</em>CO<sub>2</sub> values of the unanaesthetized tammar wallaby (<em>Macropus eugenii</em>) were determined at rest, and during moderate and severe heat stress. Values from anaesthetized animals were also obtained.</p></span></li><li><span>2.</span><span><p>2. Similarities between the resting values and normal eutherian values are discussed in relation to the lower metabolic rates of marsupials.</p></span></li><li><span>3.</span><span><p>3. The respiratory response of the tammar to heat was found to be similar to that of many eutherians. Exposure to moderate heat resulted in the respiratory rate increasing gradually until it stabilised at about 350 breaths/min. During severe heat stress the respiratory rate increased to higher values, and then decreased. The decrease in rate was similar to second-phase breathing as observed in some eutherians.</p></span></li><li><span>4.</span><span><p>4. No major changes were observed in the acid-base status of the blood, when the tammar was panting during moderate heat. However during second-phase breathing a respiratory alkalosis occurred, apparently due to the excessive alveolar ventilation.</p></span></li></ul></div>","PeriodicalId":78189,"journal":{"name":"Comparative biochemistry and physiology","volume":"37 1","pages":"Pages 59-66"},"PeriodicalIF":0.0000,"publicationDate":"1970-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0010-406X(70)90957-6","citationCount":"9","resultStr":"{\"title\":\"Influence of the respiratory response to moderate and severe heat on the blood gas values of a macropodid marsupial (Macropus eugenii)\",\"authors\":\"Terence J. Dawson, R.W. Rose\",\"doi\":\"10.1016/0010-406X(70)90957-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p></p><ul><li><span>1.</span><span><p>1. Blood pH, <em>p</em>O<sub>2</sub> and <em>p</em>CO<sub>2</sub> values of the unanaesthetized tammar wallaby (<em>Macropus eugenii</em>) were determined at rest, and during moderate and severe heat stress. Values from anaesthetized animals were also obtained.</p></span></li><li><span>2.</span><span><p>2. Similarities between the resting values and normal eutherian values are discussed in relation to the lower metabolic rates of marsupials.</p></span></li><li><span>3.</span><span><p>3. The respiratory response of the tammar to heat was found to be similar to that of many eutherians. Exposure to moderate heat resulted in the respiratory rate increasing gradually until it stabilised at about 350 breaths/min. During severe heat stress the respiratory rate increased to higher values, and then decreased. The decrease in rate was similar to second-phase breathing as observed in some eutherians.</p></span></li><li><span>4.</span><span><p>4. No major changes were observed in the acid-base status of the blood, when the tammar was panting during moderate heat. However during second-phase breathing a respiratory alkalosis occurred, apparently due to the excessive alveolar ventilation.</p></span></li></ul></div>\",\"PeriodicalId\":78189,\"journal\":{\"name\":\"Comparative biochemistry and physiology\",\"volume\":\"37 1\",\"pages\":\"Pages 59-66\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1970-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0010-406X(70)90957-6\",\"citationCount\":\"9\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Comparative biochemistry and physiology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0010406X70909576\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Comparative biochemistry and physiology","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0010406X70909576","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Influence of the respiratory response to moderate and severe heat on the blood gas values of a macropodid marsupial (Macropus eugenii)
1.
1. Blood pH, pO2 and pCO2 values of the unanaesthetized tammar wallaby (Macropus eugenii) were determined at rest, and during moderate and severe heat stress. Values from anaesthetized animals were also obtained.
2.
2. Similarities between the resting values and normal eutherian values are discussed in relation to the lower metabolic rates of marsupials.
3.
3. The respiratory response of the tammar to heat was found to be similar to that of many eutherians. Exposure to moderate heat resulted in the respiratory rate increasing gradually until it stabilised at about 350 breaths/min. During severe heat stress the respiratory rate increased to higher values, and then decreased. The decrease in rate was similar to second-phase breathing as observed in some eutherians.
4.
4. No major changes were observed in the acid-base status of the blood, when the tammar was panting during moderate heat. However during second-phase breathing a respiratory alkalosis occurred, apparently due to the excessive alveolar ventilation.
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