- 期刊
在舍內與陽光曝曬下白色與褐色菜鴨臉部皮膚、背部羽毛、結直腸溫度及血漿電解質濃度之比較
The comparison of face, feather, colon and rectum temperature and plasma electrolytes concentrations between brown-feather and white-feather Tsaiya ducks under the house and sun exposure
摘要
本研究目的係比較白色及褐色菜鴨在畜舍內與陽光曝曬下，對其臉部皮膚、背部羽毛、結直腸溫度及血漿電解質濃度之變化。分為兩個試驗進行，試驗一與二係將各10隻之白色與褐色母菜鴨分別放置於室內及室外，經陽光曝曬0、1.5與3小時後使用紅外線溫度熱像儀進行測溫。試驗二並將鴨隻經陽光曝曬後0與3小時從翼靜脈進行採血以分析血漿鈉、鉀、氯離子及肌酸酐之濃度。結果顯示，無論在室內或室外，大部分時間點測量之白色菜鴨臉部皮膚、背部羽毛與直腸溫度皆顯著低於（P<0.05）褐色菜鴨；試驗二，在褐色菜鴨經曝曬3小時後其血漿鈉與氯離子濃度有較曝曬前（0小時）之數值為高，且其上升幅度較白色菜鴨為大（P<0.05）。綜合上述結果，在氣候變遷炎熱氣候下，白色羽毛菜鴨在飼養管理上可能較具有耐熱的優勢。
並列摘要
The objective of this study is to compare the changes of temperatures taken from face skin, back plumage, colon and rectum, and the plasma electrolytes of brown-feathered and white-feathered Tsaiya ducks under exposure in the barn and the sun. The experiment includes two trials. Ten brown-feathered and 10 white-feathered Tsaiya ducks were put indoors and outdoors in Trial 1 and Trial 2, respectively. The temperatures taken from face skin, back plumage, colon and rectum are measured with an infrared thermal imager or a thermistor probe for 0, 1.5 and 3 hours. In Trial 2, blood is collected from the veins in the wing at the period of 0 and 3 hours after both 10 brown-feathered and 10 white-feathered Tsaiya ducks were exposed under the sun to analyze the concentrations of plasma sodium, potassium, chloride ion and creatinine. Results in Trial 1 shows the temperatures taken from the face skin, back feathers, and colon and rectum of the white-feathered Tsaiya ducks are lower than those of the brown-feathered Tsaiya ducks at most time points (P < 0.05), regardless of birds staying outdoors or indoors. Results in Trial 2 show that the plasma sodium and chloride ion concentrations of brown-feathered Tsaiya ducks after exposure for 3 hours are higher than those before exposure (0 hours), and the increase rate is larger than that of white-feathered Tsaiya ducks (P < 0.05). In summary, based on the temperatures taken from the feathers, facial skin and colon and rectum together with plasma electrolyte concentration, white-feathered Tsaiya ducks may have heat-resistant advantages in feeding and management in hot climates with climate change.