CAJ | 학술논문

本试验旨在研究锰对5～16周龄五龙鹅血清生化指标、组织锰沉积量、抗氧化能力及胫骨发育的影响，以确定鹅饲粮中锰的适宜添加水平。试验选用5周龄体重相近的五龙鹅360只，随机分为6组，每组6个重复，每个重复10只（公母各占1/2）。各组分别在基础饲粮（锰含量为20．00 mg/kg）中添加0（Ⅰ组）、30（Ⅱ组）、60（Ⅲ组）、90（Ⅳ组）、120（Ⅴ组）、150 mg/kg （Ⅵ组）的锰。试验期12周。结果表明：1）各组血清碱性磷酸酶活性及甘油三酯、总胆固醇含量差异不显著（ P＞0．05）。2）Ⅳ、Ⅴ组血清、心脏、肝脏中锰沉积量极显著高于Ⅰ组（ P＜0．01），胰脏中锰沉积量显著高于Ⅰ组（P＜0．05）。3）Ⅳ、Ⅴ组总抗氧化能力和谷胱甘肽过氧化物酶活性显著或极显著高于Ⅰ组（P＜0．05或P＜0．01），丙二醛含量极显著低于Ⅰ组（P＜0．05）。4）Ⅳ、Ⅴ组骨强度、骨重及粗灰分、钙、磷、锰含量显著或极显著高于Ⅰ组（ P＜0．05或P＜0．01）。由此可见，适宜锰添加水平能够提高5～16周龄五龙鹅组织器官中锰沉积量，提高机体抗氧化能力，促进胫骨发育，建议饲粮锰添加水平为90～120 mg/kg。
본시험지재연구맹대5～16주령오룡아혈청생화지표、조직맹침적량、항양화능력급경골발육적영향，이학정아사량중맹적괄의첨가수평。시험선용5주령체중상근적오룡아360지，수궤분위6조，매조6개중복，매개중복10지（공모각점1/2）。각조분별재기출사량（맹함량위20．00 mg/kg）중첨가0（Ⅰ조）、30（Ⅱ조）、60（Ⅲ조）、90（Ⅳ조）、120（Ⅴ조）、150 mg/kg （Ⅵ조）적맹。시험기12주。결과표명：1）각조혈청감성린산매활성급감유삼지、총담고순함량차이불현저（ P＞0．05）。2）Ⅳ、Ⅴ조혈청、심장、간장중맹침적량겁현저고우Ⅰ조（ P＜0．01），이장중맹침적량현저고우Ⅰ조（P＜0．05）。3）Ⅳ、Ⅴ조총항양화능력화곡광감태과양화물매활성현저혹겁현저고우Ⅰ조（P＜0．05혹P＜0．01），병이철함량겁현저저우Ⅰ조（P＜0．05）。4）Ⅳ、Ⅴ조골강도、골중급조회분、개、린、맹함량현저혹겁현저고우Ⅰ조（ P＜0．05혹P＜0．01）。유차가견，괄의맹첨가수평능구제고5～16주령오룡아조직기관중맹침적량，제고궤체항양화능력，촉진경골발육，건의사량맹첨가수평위90～120 mg/kg。
This experiment was conducted to study the effects of manganese on serum biochemical indexes, tis-sue manganese deposition, antioxidant ability and tibia development of Wulong geese aged from 5 to 16 weeks, and to find the appropriate supplemental level of manganese in Wulong geese diets.A total of 360 five-week-old Wulong geese with similar average body weight were randomly divided into 6 groups with 6 replicates per group and 10 geese per replicate ( half male and half female) .Geese in the groups were fed the basal diet ( manganese content was 20.00 mg/kg) supplemented with 0 ( group Ⅰ) , 30 ( group Ⅱ) , 60 ( group Ⅲ) , 90 ( groupⅣ) , 120 ( groupⅤ) and 150 mg/kg ( groupⅥ) manganese, respectively.The experiment lasted for 12 weeks.The results showed as follows:1) there were no significant effects on alkaline phosphatase activ-ity, triglyceride and total cholesterol contents in serum among all groups ( P>0.05) .2) The serum, heart and liver manganese deposition in groups ⅣandⅤwas significantly higher than that in groupⅠ( P<0.01) , and the pancreas manganese deposition in groups Ⅳ and Ⅴ was significantly higher than that in group Ⅰ ( P<0.05) .3) The total antioxidant capacity and glutathione peroxides activity in groups Ⅳ and Ⅴ were signifi-cantly higher than those in groupⅠ( P<0.05 or P<0.01) , while the malondialdehyde content was significant-ly lower than that in group Ⅰ( P<0.05) .4) The bone strength, bone weight and the contents of ash, calci-um, phosphorus and manganese in groupsⅣandⅤwere significantly higher than those in groupⅠ( P<0.05 or P<0.01) .In conclusion, dietary manganese at appropriate supplemental level can improve tissue deposition, antioxidant ability, and promote the tibia development of Wulong geese aged from 5 to 16 weeks, and the opti-mal supplemental level of manganese is 90 to 120 mg/kg.