锰对1~4周龄五龙鹅生长性能、屠宰性能、胫骨发育及酶活性的影响  被引量:4

Effects of Manganese on Growth Performance,Slaughter Performance,Tibia Development and Enzyme Activities of Wulong Geese Aged from 1 to 4 Weeks

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作  者:王宝维[1] 张雪君[1] 葛文华[1] 张名爱[1] 岳斌[1] 史雪萍[1] 王鑫[1] 徐晨晨[1] 

机构地区:[1]青岛农业大学优质水禽研究所,青岛266109

出  处:《动物营养学报》2014年第4期877-884,共8页CHINESE JOURNAL OF ANIMAL NUTRITION

基  金:国家水禽产业技术体系专项基金(CARS-43-11);青岛市公共领域科技支撑计划(12-1-3-17-nsh)

摘  要:本试验旨在研究锰对1~4周龄五龙鹅生长性能、屠宰性能、胫骨发育和酶活性的影响,以确定鹅饲粮中锰的适宜添加水平。试验选用1日龄体重相近的五龙鹅360只,随机分为6个组,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20mg/kg)中添加0(Ⅰ组)、30(Ⅱ组)、60(Ⅲ组)、90(Ⅳ组)、120(Ⅴ组)、150mg/kg(Ⅵ组)的锰。试验期为4周。结果表明:1)采用不相关比较法进行分析,饲粮锰添加水平为117.74mg/kg时平均日增重最大,饲粮锰添加水平为105.71mg/kg时料重比最低。2)V组屠宰率、半净膛率、全净膛率和腿肌率显著或极显著高于Ⅰ组(P〈0.05或P〈0.01),腹脂率极显著低于I组(P〈0.01)。3)IV、V组骨密度、骨强度及粗灰分、钙含量显著或极显著高于Ⅰ组(P〈0.05或P〈0.01)。4)Ⅳ、Ⅴ组血清含锰超氧化物歧化酶(MnSOD)活性显著或极显著高于Ⅰ组(P〈0.05或P〈0.01),肝脏苹果酸脱氢酶(MDH)和脂蛋白脂酶(LPL)活性显著或极显著低于Ⅰ组(JP〈0.05或P〈0.01)。由此可见,适宜饲粮锰添加水平能够提高1~4周龄五龙鹅的生长性能、屠宰性能和胫骨发育.建议鹅饲粮中锰添加水平为105.71~117.74mg/kg。This experiment was conducted to study the effects of manganese on growth performance, slaughter performance, tibia development and enzyme activities of Wulong geese aged from 1 to 4 weeks, and to find the appropriate supplemental level of manganese. A total of 360 one-day-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 mg/kg) sup- plemented with 0 ( group Ⅰ ), 30 ( group Ⅱ) , 60 ( group Ⅲ) , 90 ( group Ⅳ ) , 120 ( group Ⅴ ) and 150 mg/kg ( group Ⅵ ) manganese, respectively. The experiment lasted for 4 weeks. The results showed as follows: 1 ) using unrelated comparative analysis method, when the dietary manganese level was 117.74 mg/kg, the average daily gain reached the highest, and when the dietary manganese level was 105.71 mg/kg, the ratio of feed to gain reached the lowest. 2 ) The dressed percentage, percentage of half-e- viscerated yield, percentage of eviscerated yield and percentage of leg muscle in groups Ⅳ and Ⅴ were signifi- cantly higher than those in group Ⅰ ( P 〈 0.05 or P 〈 0.01 ), and the percentage of abdominal fat in group Ⅴ was significantly lower than that in group Ⅰ (P 〈 0.05 ). 3 ) The bone mineral density, bone strength, ash and calcium contents in groups IV and V were significantly higher than those in group Ⅰ ( P 〈 0.05 or P 〈 0.01 ). 4) The serum manganese superoxide dismutase activity in groups IV and V was significantly higher than that in group Ⅰ (P 〈0.05 or P 〈0.01 ), and the activities of malic dehydrogenase and lipoproteinester- ase in liver in groups IV and V were significantly lower than those in group Ⅰ ( P 〈 0.05 or P 〈 0.01 ). In conclusion, dietary manganese at appropriate supplemental level can promote growth performance, slaughter performance and tibia development of Wulong g

关 键 词:  生长性能 屠宰性能 胫骨发育 酶活性 适宜添加水平 

分 类 号:S835[农业科学—畜牧学]

 

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