CAJ | 학술논문

本试验采用单因子完全随机试验设计研究维生素B6对1～21日龄雄性北京鸭生产性能的影响，进而探讨1～21日龄北京鸭维生素B6需要量。试验设7个维生素B6添加水平（0、0.66、1.32、1.98、2.64、3.30、3.96 mg/kg），维生素B6添加形式为盐酸吡哆醇。336只1日龄雄性北京鸭随机分为7组，每组8个重复，每重复6只，饲养至21日龄。试验结果表明，维生素B6缺乏会显著抑制肉鸭生长，随维生素B6添加水平升高，北京鸭日增重显著增加（P＜0.05），而采食量和料重比未发生显著变化（P＞0.05）。以日增重为评价指标，依据折线模型，1～21日龄北京鸭维生素B6适宜添加量为1.24 mg/kg。当考虑到基础日粮中维生素B6含量时，1～21日龄北京鸭维生素B6总需要量为3.17 mg/kg。
본시험채용단인자완전수궤시험설계연구유생소B6대1～21일령웅성북경압생산성능적영향，진이탐토1～21일령북경압유생소B6수요량。시험설7개유생소B6첨가수평（0、0.66、1.32、1.98、2.64、3.30、3.96 mg/kg），유생소B6첨가형식위염산필치순。336지1일령웅성북경압수궤분위7조，매조8개중복，매중복6지，사양지21일령。시험결과표명，유생소B6결핍회현저억제육압생장，수유생소B6첨가수평승고，북경압일증중현저증가（P＜0.05），이채식량화료중비미발생현저변화（P＞0.05）。이일증중위평개지표，의거절선모형，1～21일령북경압유생소B6괄의첨가량위1.24 mg/kg。당고필도기출일량중유생소B6함량시，1～21일령북경압유생소B6총수요량위3.17 mg/kg。
An completely randomized one-factorial experiment was conducted to determine the effects of vitamin B6 on growth performance of White Pekin ducks from 1 to 21 d of age and to estimate vitamin B6 requirement of these birds during this period.Seven supplemental vitamin B6 levels(0,0.66,1.32,1.98,2.64,3.30,3.96 mg/kg)were used and pyridox-ine hydrochloride was used as vitamin B6 source. A total of 336 one-day-old male White Pekin ducks were divided into 7 experimental treatments and each treatment contained 8 replicate pens with 6 birds per pen.These birds were raised from 1 to 21 d of age.In this study,vitamin B6 deficiency could reduce duck growth markedly and the daily weight gain in-creased significantly with the increase of supplemental vitamin B6 level (P < 0.05),but feed intake and feed/gain did not change significantly (P > 0.05).According to broken-line regression,the supplemental vitamin B6 requirement of Pekin ducks from 1 to 21 days of age was 1.24 mg/kg for optimum weight gain.Considering the vitamin in basal diets,total vita-min B6 requirement for the birds during this period was 3.17 mg/kg.