Kornegay E T, Meldrum J B, Schurig G, Lindemann M D, Gwazdauskas F C
J Anim Sci. 1986 Aug;63(2):484-91. doi: 10.2527/jas1986.632484x.
Three trials using 240 weanling pigs were conducted during winter months to determine the influence of nursery temperature ("comfortable" vs "cold") on the response of weanling pigs to added vitamin C (700 ppm) or E (55 IU/kg) to a corn-soybean meal diet. A "comfortable" temperature schedule (27 C initially with a weekly 2 C drop) was maintained in one nursery, with the temperature schedule in the "cold" nursery about 8 C lower. Plasma concentrations of vitamin C and vitamin E were elevated when the respective vitamins were added to the diet, but were not consistently influenced by nursery temperatures. Daily gain, daily feed intake and feed efficiency were not improved with the added C or E. Daily feed intake was increased and feed-to-gain ratios were larger for pigs housed in the "cold" nursery compared with pigs housed in the "comfortable" nursery; however, daily gains were similar in the two environments. Pigs housed in the "cold" nursery were slightly stressed, as indicated by heavier adrenal glands, but the antibody response and serum glucocorticoid concentrations were not significantly affected by either diet or temperature.
在冬季进行了三项试验，使用240头断奶仔猪，以确定保育温度（“舒适”与“寒冷”）对断奶仔猪在玉米 - 豆粕日粮中添加维生素C（700 ppm）或维生素E（55 IU/kg）时反应的影响。一个保育室维持“舒适”的温度方案（初始温度27℃，每周下降2℃），“寒冷”保育室的温度方案比其低约8℃。日粮中添加相应维生素时，血浆维生素C和维生素E浓度升高，但未持续受到保育温度的影响。添加维生素C或E并未提高日增重、日采食量和饲料效率。与饲养在“舒适”保育室的仔猪相比，饲养在“寒冷”保育室的仔猪日采食量增加，料重比更大；然而，两个环境中的日增重相似。“寒冷”保育室中的仔猪略有应激，表现为肾上腺更重，但日粮或温度对抗体反应和血清糖皮质激素浓度均无显著影响。
