複合型床面對二品種土番鴨生長性能與屠體性狀之影響

The effects of composite floors on the growth performance and carcass traits of two-way crossbred mule duck

林榮新(Jung-Hsin Lin) ； 林育安(Yu-An Lin) ； 曾再富(Tsai-Fuh Tseng) ； 鄭智翔(Chih-Hsiang Cheng) ； 劉秀洲(Hsiu-Chou Liu) ； 蘇晉暉(Chin-Hui Su)

《畜產研究》 53卷3期 (2020/09) Pp. 187-194

https://doi.org/10.6991/JTLR.202009_53(3).0007

摘要

本試驗旨在探討複合型床面對土番鴨生長性能、屠體性狀、主翼羽長度及足墊損傷狀況之影響，以評估舍內高床飼養二品種土番鴨之可行性。使用3週齡二品種土番鴨240隻進行試驗，將土番鴨逢機分成4處理組，飼養於4種不同複合型床面，即以一半不銹鋼網狀床面分別搭配一半稻殼墊料床面、一半塑膠床面、一半木條床面及一半橡膠止滑床面，每處理組3重複，每重複20隻，公母各半，各組餵飼相同之飼糧。在試驗之第3、7、10及12週齡時，測定鴨隻之個別體重及各組之飼料消耗量，以計算鴨隻之採食量、增重、飼料轉換率等生長性能；於7、10及12週齡時並測定第八主翼羽長度與足墊損傷狀況；於12週齡時每重複逢機取樣公母各1隻犧牲，測定鴨隻之屠體性狀。試驗結果顯示：各處理組12週齡平均活體重介於3,105－3,283g，以橡膠止滑床面組平均活體重3,105g顯著較其它三組為輕（P＜0.05）。各處理組12週齡主翼羽平均長度介於20.8－22.6公分，以橡膠止滑床面組之主翼羽長度顯著較其它三組為短（P＜0.05）。12週齡足墊損傷，評分以稻殼墊料床面組的0.40分顯著較其它三組為佳（P＜0.05）。由本試驗結果得知，若同時考量活體重、飼料轉換率、主翼羽長度、足墊損傷及胸肉重等性能表現，建議鴨舍複合型床面採用以一半不銹鋼網狀床面搭配一半稻殼墊料床面為宜。

關鍵字

屠體性狀 ； 複合型床面 ； 生長性能 ； 土番鴨

並列摘要

The purpose of this study was to investigate the effects of composite floors on mule ducks' growth performances, carcass traits, primarily feather length and foot pad damage condition to evaluate the feasibility of rearing mule ducks in a raised floor duck house. A total of 240 two-way crossbred mule ducklings aged 3 weeks were allocated randomly into 4 treatment groups and fed on four different composite floors; namely half stainless mesh floor with half rice hull, half stainless mesh floor with half plastic floor, half stainless mesh floor with half wooden slats floor, and half stainless mesh floor with half non-slip rubber floor. Each of the treatment group repeats 3 times, with 20 ducks repeated, consisting 50% each of male and female duck, all treatments given the same diets. Ducks individual body weight, feed consumption was determined for calculating feed intake, body weight gain, feed conversion ratio at 3, 7, 10 and 12 weeks of age and the 8^(th) primary feather length and footpad damage scores at 7, 10 and 12 weeks of age. One male and one female duck from each replicate were sacrificed at 12 weeks of age for carcass traits determination. The results showed that average body weight at 12 weeks of age was in the range of 3,105 ~ 3,283 g. The average body weight of ducks raised on the non-slip rubber floor group was 3,105 g and was significantly lighter than the other three groups (P ＜ 0.05). The average primarily feather length at 12 weeks of age was in the range of 20.8 ~ 22.6 cm. The primarily feather length of ducks raised on the non-slip rubber floor group was significantly shorter than the other three groups (P ＜ 0.05). The foot pad damage score at 12 weeks of age of ducks raised on the rice hull treatment was 0.4, significantly better than the other three groups (P ＜ 0.05). According to the results of this experiment, it is recommended to apply the half stainless mesh floor with half rice hull in the duck house when ducks' live body weight, feed conversion ratio, primarily feather length, footpad damage and breast meat weight were taken into consideration concurrently.

並列關鍵字

Carcass traits ； Composite floors ； Growth performance ； Mule duck