飼糧添加靈芝萃取物對臺灣土雞生長、屠體性狀及免疫反應之影響

本試驗目的為探討飼糧添加靈芝發酵產物（Ganoderma lucidum fermented product, GLFP）對臺灣土雞生長、屠宰率及免疫反應之影響。試驗飼糧分別為（1）對照組於各生長階段飼糧中均無添加抗生藥物或球蟲藥；（2）添加GLFP 500 ppm；（3）添加GLFP 1,000 ppm；（4）藥物組添加羥四環素125 ppm。以312隻初生土雞，逢機分為四組，每組三重複，各重複試驗雞隻26隻，試驗期間飲水與飼料均採任食。試驗結果，土雞各階段生長期及飼養全期之採食量處理組之間，並無顯著差異。增重除5－8週齡添加GLFP 1,000 ppm組顯著較對照組佳（P ＜ 0.05）外，各飼養階段及全期雞隻處理組間均無顯著差異；飼料轉換率以添加1,000 ppm GLFP組於9－12週齡階段顯著較對照組及添加GLFP 500 ppm組佳（P ＜ 0.05）；雞隻育成率方面，添加1,000 ppm GLFP與藥物組顯著高於對照組（P ＜ 0.05），且餵飼GLFP具顯著減少屠體腹脂率之效果（P ＜ 0.05），但屠宰率及可食性內臟重量處理組間，並無顯著差異。土雞第4、8或16週齡時，腸道絨毛型態或高度與腺窩深度比均以含GLFP處理組顯著較對照組或藥物組提高（P ＜ 0.05）或呈較高之趨勢；添加GLFP或藥物組其土雞皮膚腫脹評分顯著高於對照組（P ＜ 0.05），血液中華氏囊炎之抗體力價與免疫球蛋白IgA均以GLFP處理組明顯較高（P ＜ 0.05）。綜上所述，土雞餵飼含1,000 ppm靈芝發酵產物可取代藥物飼養，而不影響生長及育成率，具有提高十二指腸絨毛發育及降低腹脂重量之趨勢。

關鍵字

靈芝發酵產物；生長性能；土雞；存活率

並列摘要

The purpose of this study was to investigate the effects of Ganoderma lucidum fermented products (GLFP) on the growth performances, carcass characteristics and immune response for the Native chickens. A total of three hundred and twelve day-old Native chickens were randomly grouped with equal sex in four groups for three replicates as following treatments: (1) basal diet (control); (2) addition of 500 ppm GLFP; (3) addition of 1,000 ppm GLFP; (4) addition of 125 ppm oxytetracycline (OTC). Feed and water are supplied ad libitum. There was no diet effect on feed intake during the whole growth stages. At ages of 5-8 weeks, the birds fed the 1,000 ppm GLFP had higher (P ＜ 0.05) weight gains than the other treatments. Feed conversion ratios were significantly (P ＜ 0.05) improved when GLFP or drug were added in the chicken diets during 9 - 12 weeks of age. The control group had significantly (P ＜ 0.05) lower survival rate during the experimental period. The chickens fed the GLFP diets had significantly (P ＜ 0.05) lower percentage of abdominal fat. However, the percentages of edible internal organs did not affected among the treatments. The birds fed with GLFP diet had significantly (P ＜ 0.05) higher or increasing tendency of villous height and crypt ratio at 4, 8 and 16 weeks of age, respectively. The PHA score had significantly higher by GLFP diets, however, IBD antibody and IgA contents were increased those supplementation of GLFP groups than that of control group. In conclusion, the growth performances, survival rate, carcass characteristics and immune response of the Native chickens could be improved by the supplementation of Ganoderma lucidum fermentative products, especially at 1,000 ppm was supplemented.

並列關鍵字

Ganoderma lucidum Fermentative Products ； Growth performances ； Native chicken ； Survival rate

國際替代計量

飼糧添加靈芝萃取物對臺灣土雞生長、屠體性狀及免疫反應之影響

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