SERUM ELECTROLYTE AND ENZYME RESPONSES TO HEAT-STRESS AND DEHYDRATION IN THE FOWL (GALLUS-DOMESTICUS)
SERUM ELECTROLYTE AND ENZYME RESPONSES TO HEAT-STRESS AND DEHYDRATION IN THE FOWL (GALLUS-DOMESTICUS)
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DOI：
10.1016/0300-9629(83)90629-1
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发表时间：
1983-01-01
影响因子：
2.3
通讯作者：
EYLATH, U
中科院分区：
文献类型：
--
作者：
ARAD, Z;MARDER, J;EYLATH, U
对高温脱水鸡的血清电解质、酶及各种代谢产物进行了测定。在正常水分的家禽中，热应激对血液成分没有显著影响。缺水48h(脱水)显著增加Na+、渗透压、血清谷丙转氨酶和三碘甲腺原氨酸滞留。在高温脱水过程中，Na+、Cl-、渗透压(P<；0.001)、血尿素氮(BUN)、血糖、T3-保留率(P<；0.02)和尿酸(P<；0.001)显著升高。结果与Na+/Ca~(2+)比值的变化可能提高下丘脑体温调节设定点的说法一致，并支持了先前的研究结果，即驯化家禽可以有效地调节体温和酸碱状态，同时避免在热暴露和脱水过程中发生极端的代谢和酶变化。
Serum electrolytes, enzymes and various metabolites were determined in the hyperthermic and dehydrated fowl. In normally-hydrated fowls, heat stress did not significantly affect blood constituents. Water deprivation for 48 h (dehydration) significantly (P < 0.05) increased Na+, osmolality, SGPT [serum glutamic pyruvic transaminase] and T3[triiodothyronine]-retention. During hyperthermic dehydration, Na+, Cl-, osmolality (P < 0.01), BUN [blood urea N], glucose, T3-retention (P < 0.02) and uric acid (P < 0.001) significantly increased. Findings are consistent with the suggestion that changes in Na+/Ca2+ ratio might raise the hypothalamic thermoregulatory set-point, and support previous findings that acclimated fowls could efficiently regulate body temperature and acid-base status while avoiding extreme metabolic and enzymatic changes during heat exposure and dehydration.