| 桑叶粉对育肥猪生长性能、肉品质和血清生化指标的影响 |
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| 引用本文： | 宋琼莉,韦启鹏,邹志恒,周泉勇,刘林秀,陈小连,董闽鲜,赖贻奎,严景生.桑叶粉对育肥猪生长性能、肉品质和血清生化指标的影响[J].动物营养学报,2016(2):541-547. |
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| 作者姓名： | 宋琼莉 韦启鹏 邹志恒 周泉勇 刘林秀 陈小连 董闽鲜 赖贻奎 严景生 |
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| 作者单位： | 1. 江西省农业科学院畜牧兽医研究所,南昌,330200;2. 江西省吉安市畜牧兽医局,吉安,343000;3. 江西省井冈山市畜牧兽医局,井冈山,343604 |
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| 基金项目： | 江西省生猪产业技术体系(JXARS-03)；江西省科技三援项目(20133BFB29008)；江西省农业科学院博士基金(2012CBS005) |
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| 摘 要： | 本试验旨在研究饲粮中添加桑叶粉对育肥猪生长性能、肉品质和血清生化指标的影响。选用始重(87.10±5.33)kg]基本一致的健康"杜×大×长"三元杂交育肥猪160头,随机分为4组(每组4个重复,每个重复10头):对照组饲喂基础饲粮,试验组分别饲喂含5%、10%、15%桑叶粉饲粮,试验期50 d。结果表明:与对照组相比,1)饲粮中添加5%和10%的桑叶粉对育肥猪平均日增重影响不显著(P0.05);添加15%的桑叶粉显著降低育肥猪平均日增重和显著提高料重比(P0.05)。2)添加5%和10%桑叶粉对屠宰后45 min、24 h肌肉剪切力和p H影响不显著(P0.05),可提高肌肉的大理石纹评分,但差异不显著(P0.05);当桑叶粉添加15%时,平均背膘厚和肌肉总胆固醇含量显著降低(P0.05)。3)添加5%、10%、15%桑叶粉能显著提高肌肉中超氧化物歧化酶的活性(P0.05),降低肌肉中丙二醛的含量(P0.05),有效提高肌肉的抗氧化能力。4)添加5%、10%、15%桑叶粉血清尿素氮含量均显著提高(P0.05),脂肪酶活性降低,但差异不显著(P0.05),饲粮中添加15%桑叶粉能显著降低血清甘油三酯含量(P0.05)。综合各项指标,饲粮中添加10%的桑叶粉对育肥猪生长速度影响较小,但可有效提高肉品质。
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| 关 键 词： | 桑叶粉 育肥猪 生长性能 肉品质 血清生化指标 |
Effects of Mulberry Leaf Powder on Growth Performance,Meat Quality and Serum Biochemical Indexes in Finishing Pigs |
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| Abstract: | This study was aimed to investigate the effects of mulberry leaf powder on growth performance, meat quality and serum biochemical indexes in finishing pigs.One hundred and sixty‘Duroc×Yorkshire×Land-race’ health finishing pigs with initial weight of (87.10±5.33) kg were randomly divided into four groups with four replicates in each group and ten pigs in each replicate.Pigs in the four groups were fed with a basal diet ( control group, group Ⅰ) , the basal diet containing 5%mulberry leaf powder ( group Ⅱ) , the basal diet containing 10%mulberry leaf powder ( group Ⅲ) , and the basal diet containing 15%mulberry leaf powder ( group Ⅳ) , respectively.The experiment lasted for 50 days.The results showed as follows: compared with the control group, 1) the average daily gain of finishing pigs fed diet containing 5%and 10%mulberry leaf powder was not significantly different ( P>0.05) , the average daily gain was significantly decreased and the ra-tio of feed to gain was significantly increased in pigs fed diet containing 15%mulberry leaf powder ( P<0.05) . 2) Shear force and pH of muscle at 45 min and 24 h post-slaughter were not significantly different in finishing pigs fed diet containing 5%and 10%mulberry leaf powder ( P>0.05) , but marbling score was increased with no significantly different ( P>0.05) .Backfat thickness and cholesterol content in muscle were significantly de-creased in pigs fed diet containing 15%mulberry leaf powder ( P<0.05) .3) As diet mulberry leaf powder lev-el was 5%, 10%and 15%, the SOD activity was significantly increased ( P<0.05) and malonaldehyde content was significantly decreased ( P>0.05) , and the antioxidant performance of muscle was improved.4) Urea ni-trogen content in serum was significantly increased in pigs fed diets containing 5%, 10%and 15%mulberry leaf powder ( P<0.05) , lipase activity was decreased with no significantly different ( P>0.05) , and triglycer-ide content was significantly decreased in pigs fed diet containing 15%mulberry leaf powder ( P<0.05).In conclusion, diet containing 10%mulberry leaf powder has less effect on the growth rate of finishing pigs, while can improve meat quality. |
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| Keywords: | mulberry leaf powder finishing pig growth performance meat quality serum biochemical index |
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