蘭嶼豬餵飼飼料及狼尾草對其生長及屠體性能之影響

The effects of feed and Napiergrass intake on growth performance and carcass characteristics of Lanyu pigs

李啟忠(Chii-Jong Lee) ； 廖宗文(Chung-Wen Liao) ； 黃政齊(Jan-Chi Huang) ； 曾穎玉(Ying-Yu Tseng) ； 朱賢斌(Hsien-Pin Chu) ； 陳文誠(Wen-Cherng Chen) ； 鄭連春(Lien-Chun Cheng)

《畜產研究》 36卷2期 (2003/06) Pp. 157-164

摘要

本試驗目的在瞭解不同飼料及狼尾草餵飼量對蘭嶼豬生長、飼料利用效率及屠體性能之影響。採用蘭嶼豬24頭，依開始體重逢機分別日餵0.4、0.7、1.0kg或任食四種飼料餵量組，前三組另供給切短之新鮮牧草（狼尾草台畜2號）任食，自體重30kg開始迄50kg結束。另選取LYD三品種雜交豬4頭，自體重50kg開始至100kg結束，給予飼料任食。試驗期間，進行豬隻之生長、屠體性狀、屠肉化學成分等相關數據之分析。試驗結果顯示，蘭嶼豬日餵1.0kg飼料及任食狼尾草組與完全以飼料任食組之日增重及飼料利用效率無差異，但日餵飼料量低於1.0kg之各組之日增重顯著減低（P＜0.05）。飼料任食組較日餵1.0kg飼料及任食狼尾草組採食量約增加0.3kg、日增重亦有較高的趨勢、背脂厚度則增加而肌間脂肪含量降低，但是兩組之瘦肉率並無差異。蘭嶼豬日餵1.0kg飼料及任食狼尾草組與飼料任食組之精肉色澤較其它組有較佳之趨勢，而日餵1.0kg飼料及任食狼尾草組顯著高於其他各組（P＜0.05）。綜觀之，體重30-50kg蘭嶼豬日餵1.0kg飼料及任食狼尾草可獲得和任食飼料組豬相同之生長及飼料利用效率而不影響屠體品質。

關鍵字

蘭嶼豬 ； 狼尾草 ； 生長性能 ； 屠體性狀

並列摘要

The aim of this study was to investigate the effect of feed and Napiergrass intake on growth performance, feed efficiency (F/G) and carcass characteristics of Lanyu pigs. A total of 24 Lanyu pigs were allocated into 4 groups which were daily provided 0.4 (L-0.4), 0.7 (L-0.7), 1.0 kg (L-1.0) feed and fed ad libitum (L-Ad). Besides, 4 LYD hybrid pigs were fed ad libitum for control. The first 3 groups were also provided with fresh Napiergrass (Taishi No. 2) ad libitum. Experiments were started when body weight (BW) for Lanyu pigs were 30 kg and 50 kg for LYD pigs, and slaughtered when Lanyu pigs's BW reached 50 kg and 100 kg for LYD. Results showed that there was no difference in ADG and F/G between L-1.0 and L-Ad. The ADG significantly decreased in L-0.4 and L-0.7 (P＜0.05). The feed intake in L-Ad was increased for 0.3 kg/d than the L-1.0 and the backfat thickness was larger and intramuscular fat was reduced. The L values of meat color in L-1.0 and L-Ad were larger than other groups. The crude fat of loin in L-1.0 was significantly higher than the other groups (P＜0.05). In conclusion, daily provision of 1.0 kg of feed and roughage fed on ad libitum basis to Lanyu pigs could obtain good growth and carcass performance.

並列關鍵字

Lanyu pig ； Napiergrass ； Growth performance ； Carcass characteristics