飼糧粗蛋白質及代謝能含量對高肉質黑豬雜交肉豬生長性能之影響

Effects of dietary crude protein and metabolizable energy levels on the growth performance of Duroc x KHAPS black pig in growing period

王漢昇(Han-Sheng Wang) ； 李秀蘭(Hsiu-Lan Lee) ； 黃憲榮(Hsien-Juang Huang) ； 王治華(Chih-Hua Wang) ； 林正鏞(Cheng-Yung Lin) ； 許晉賓(Chin-Bin Hsu)

《畜產研究》 53卷4期 (2020/12) Pp. 205-212

https://doi.org/10.6991/JTLR.202012_53(4).0001

摘要

本研究旨在探討飼糧中不同粗蛋白質或代謝能含量對高肉質黑豬雜交肉豬生長期之生長性能與血液生化值影響，試驗分為兩部分進行，每試驗各進行6週試驗，每組以體重30 kg肉豬16頭進行，分為4欄，公母各半。試驗一以30 kg肉豬64頭探討代謝能（Metabolizable energy, ME）3,250 kcal/kg與3,100 kcal/kg及粗蛋白質（Crude protein, CP）15.5%與14%組成之2×2複因子試驗對豬隻生長之影響。試驗二以30 kg肉豬48頭進一步探討代謝能3,250 kcal/kg搭配粗蛋白質18、16.5及15%對豬隻生長之影響。試驗一結果顯示，試驗結束之體重，以粗蛋白質15.5%顯著（P＜0.05）大於粗蛋白質14%，試驗全期之ADG以粗蛋白質15.5%極顯著（P＜0.01）大於粗蛋白質14%，飼料轉換率（Gain/Feed, G/F）亦以粗蛋白質15.5%顯著（P＜0.05）大於粗蛋白質14%。而第4週之血中尿素氮（Blood urea nitrogen, BUN）及肌酸酐（Creatinine）含量以粗蛋白質15.5%極顯著（P＜0.01）大於粗蛋白質14%。試驗二結果顯示，提升粗蛋白質含量由15%至18%，不影響試驗全期ADG、平均每日採食量（Average daily feed intake, ADFI）及G/F，而試驗於第4週之BUN以粗蛋白質18%顯著（P＜0.05）大於粗蛋白質16.5%。綜合兩試驗結果，可發現粗蛋白質含量相較於ME含量，對生長期高肉質黑豬之生長性能有顯著影響，而於ME 3,250 kcal/kg之含量，以粗蛋白質含量18%則對生長性能無顯著增進之效果。

關鍵字

粗蛋白質 ； 代謝能 ； 生長性能 ； 血液生化值

並列摘要

Two trials were conducted to investigate the effects of dietary different crude protein (CP) and metabolizable energy (ME) levels on the growth performance and blood parameters of Duroc x Kaohsiung Animal Propagation Station black pig (DK black pigs) during growing period. In each trial, sixteen pigs (eight males and eight females) were randomly allotted to different diets and were fed for six weeks. In experiment 1, sixty-four pigs (30 kg BW) were assigned to one of the dietary treatments in a 2 × 2 factorial arrangement with two CP levels (14% and 15.5%) and two ME levels (3,100 kcal/kg and 3,250 kcal/kg). In experiment 2, forty-eight pigs (30 kg BW) were assigned to one of the three dietary CP treatments (18%, 16.5% and 15%) to assess the effect of higher CP levels under 3,250 kcal/kg ME. In experiment 1, the results showed that the average body weight in CP 15.5% was higher (P ＜ 0.05) than CP 14%. The average daily gain (ADG) of CP 15.5% was higher (P ＜ 0.01) than CP 14% and the Gain/Feed (G/F) of CP 15.5% was higher (P ＜ 0.05) than CP 14%. The blood urea nitrogen (BUN) and creatinine in CP 15.5% at the 4th week were higher (P ＜ 0.01) than CP 14%. In experiment 2, the results showed that the increase of CP levels did not influence the ADG, Average daily feed intake and G/F during the whole experimental period. The BUN in CP 18% at the 4th week was higher (P ＜ 0.05) than CP 16.5%. In conclusion, the CP level was more important than ME level on the growth performance while the diet with CP 18% did not improve the growth performance of DK black pig growers.

並列關鍵字

Crude protein ； Metabolizable energy ； Growth performance ； Blood parameters