水簾式與傳統式鴨舍對熱季菜鴨產蛋性能之影響

本試驗旨在利用水簾式鴨舍，以緩和產蛋菜鴨遭受之熱緊迫，提升其產蛋性能。試驗分為水簾式鴨舍及傳統式鴨舍兩組，每處理組3重複，每重覆50隻，總計300隻，飲水採乳頭式自動飲水器，飼糧調配依照「鴨隻營養分需要量手冊」，係CP 19%、ME 2850 kcal/kg之粒狀飼料，採自由任食。試驗結果顯示，水簾式鴨舍近水簾端（前端）、中間及近風扇端（後端）之風速分別為2.0、1.9及1.7公尺／秒；水簾式鴨舍之降溫效果在前端較佳，且水簾式鴨舍前、後端溫差隨外界環境溫度而異，其範圍介於0.4-2.3℃；至於濕度方面，水簾式鴨舍因受水簾牆水流通風冷卻關係，濕度較傳統式鴨舍為高。採食量方面，水簾式鴨舍組要比傳統式鴨舍組高2.7%（P＜0.05）。產蛋率在水簾式鴨舍組為81.6%，比傳統式鴨舍78.3%為佳（P＜0.05），且試驗期間水簾式鴨舍組產蛋狀況亦較平穩。傳統式鴨舍組飼養鴨隻在23及28週齡時之蛋殼強度比水簾式鴨舍組者為高（P＜0.05），但38週齡時則兩處理組間並無顯著差異；受精率、孵化率方面，水簾式鴨舍組與傳統式鴨舍組無顯著差異；水簾式鴨舍與傳統式鴨舍組平均死亡率分別為2.0%及5.3%。由此可見，水簾式鴨舍確可提高菜鴨之產蛋率並降低死亡率。

關鍵字

水簾式鴨舍；傳統式鴨舍；產蛋性能

並列摘要

The objectives of this study were to compare the laying performance of laying Tsaiya ducks raised in the duck house with water pad and forced ventilation (WF) versus traditional duck house (TR). There were three replicates in each treatment with 50 ducks in each replicate. Egg production, mortality, and environmental temperature and humidity were recorded throughout this study. Feed intake, body weight, egg weight, eggshell strength, fertility and hatchability were also determined. The results showed that wind velocities on the anterior side (close to water pads), middle and posterior side (close to fans) in the WF duck house were 2.0, 1.9, and 1.7 m/sec, respectively. The ambient temperature difference between anterior and posterior sides of the WF duck house was dependent on the outside environmental temperature, with the range of 0.4-2.3℃ Higher relative humidity in the WF duck house was observed. Feed intake in the WF group was significantly higher than that in the TR group (P ＜ 0.05). Egg production in the WF group was 81.6%, which was significantly higher than 78.3% in the TR group (P ＜ 0.05). In addition, egg production in the WF group was more stable than that in the TR group. The eggshell strength in the TR group at 23 and 28 weeks of age was significantly higher than that in the WF group (P ＜ 0.05). However, this difference was not observed at 33 and 38 weeks of age (P ＞ 0.05). Fertility and hatchability were not different between the two groups. Mortalities in the WF and TR group were 2.0% and 5.3%, respectively. In conclusion, ducks raised in the duck house with water pad and forced ventilation had higher egg production and lower mortality than those in the traditional duck house.

並列關鍵字

Duck house with water pad and forced ventilation ； Traditional duck house ； Laying performance

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