饲粮蛋氨酸水平对29～91日龄杂交鸡生长性能和屠宰性能的影响
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摘要
为研究不同饲粮蛋氨酸水平对杂交鸡生长性能和屠宰性能的影响,将126只29日龄杂交鸡(罗斯308公鸡×大骨鸡母鸡,公母鸡各半),按2×3因子分别随机分成3组,每组3个重复,每个重复7只,分别饲喂低、中、高水平蛋氨酸饲粮,饲养期9周,测定生长性能及屠宰性能。结果表明:(1)不同蛋氨酸水平对29～49日龄杂交公母鸡的平均采食量影响显著,中水平组和低水平组极显著高于高水平组(P<0.01),50～91日龄杂交公母鸡平均采食量低水平组高于高水平组(P<0.01),中水平组显著高于高水平组(P<0.05)。(2)屠宰性能结果显示:49、91日龄公鸡腿比率、胸肌率、腿肌率中水平组显著高于其他两组(P<0.05);91日龄母鸡在中水平下腿比率显著低于其他两组(P<0.05)。提示中水平组饲粮有利于提高29～49日龄杂交鸡生长性能,低水平组饲粮有利于提高50～91日龄杂交鸡生长性能,中水平组饲粮有利于提高杂交公鸡屠宰性能。
The study was designed to investigate the effects of different dietary methionine levels on growth performance and slaughter performance in hybrid broilers.One hundred and twenty-six hybrid broilers at 29 days of age(White feather cock×Big bone hen) with 63 hens were allocated to a 2×3 factorial arrangement and randomly divided into 3 groups with 3 replicates in each group and 7 birds in each replicate,fed with low,middle and high levels of methionine respectively.The growth performance and slaughter performance were measured during the feeding period of 9 weeks.The results showed that different methionine levels had a significant impact on the average intake of hybrid chickens at 29 to 49 days of age.The middle level group and the low level group was higher than the high level group(P<0.01).The low level group hybrid chickens at 50 to 91 days of age was higher than the high level group(P<0.01),and the middle level group was higher than the high level group(P<0.05).The results of slaughter performance showed that the ratio of male chicken leg,breast muscle and leg muscle at 49 and 91 days of age was significantly higher in the middle level group than those in the other two groups(P<0.05).The leg ratio of hens at 91 days of age at the middle level was significantly lower than those of the other two groups(P<0.05).The results suggested that the middle level diet could improve the growth performance of 29 to 49 days of age crossbred chickens,the low level diet could improve the growth performance of 50 to 91 days of age crossbred chickens,and the middle level group could improve the slaughter performance of hybrid cock.
The study was designed to investigate the effects of different dietary methionine levels on growth performance and slaughter performance in hybrid broilers.One hundred and twenty-six hybrid broilers at 29 days of age(White feather cock×Big bone hen) with 63 hens were allocated to a 2×3 factorial arrangement and randomly divided into 3 groups with 3 replicates in each group and 7 birds in each replicate,fed with low,middle and high levels of methionine respectively.The growth performance and slaughter performance were measured during the feeding period of 9 weeks.The results showed that different methionine levels had a significant impact on the average intake of hybrid chickens at 29 to 49 days of age.The middle level group and the low level group was higher than the high level group(P<0.01).The low level group hybrid chickens at 50 to 91 days of age was higher than the high level group(P<0.01),and the middle level group was higher than the high level group(P<0.05).The results of slaughter performance showed that the ratio of male chicken leg,breast muscle and leg muscle at 49 and 91 days of age was significantly higher in the middle level group than those in the other two groups(P<0.05).The leg ratio of hens at 91 days of age at the middle level was significantly lower than those of the other two groups(P<0.05).The results suggested that the middle level diet could improve the growth performance of 29 to 49 days of age crossbred chickens,the low level diet could improve the growth performance of 50 to 91 days of age crossbred chickens,and the middle level group could improve the slaughter performance of hybrid cock.
引文
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[2]HADINIA S,SHIVAZAD M,MORAVEJ H,et al.Bio-efficacy comparison of herbal-methionine and DL-methionine based on performance and blood parameters of broiler chickens[J].Veterinary Research Forum,2014,5(2):81-87.
[3]WEN C,CHEN Y,WU P,et al.MSTN,mTOR and FoxO4are involved in the enhancement of breast muscle growth by methionine in broilers with lower hatching weight[J].PLoS One,2014,9(12):1-11.
[4]马闯.白羽肉鸡鸡肉产量突破千万吨后的战略选择[J].中国畜牧杂志,2014,50(18):3-22.
[5]李利.太行鸡、罗斯308和肉杂鸡肌肉品质的比较研究[D].保定:河北农业大学,2011.
[6]高健保,韩佳琪,张宇婷,等.庄河大骨鸡及其杂交鸡外形、生长性能和屠宰性能的研究[J].畜牧与兽医,2017,49(12):29-33.
[7]刘文斐.不同形式蛋氨酸对肉种鸡生产性能、血清生化指标和氨基酸平衡的影响[C]//第七届中国饲料营养学术研讨会论文集,2014:1.
[8]车向荣.蛋雏鸡蛋氨酸需要量和羟基蛋氨酸相对生物学效价的评定[C]//第六次全国饲料营养学术研讨会论文集,2010:1.
[9]娜仁格日勒,哈斯其木格,宝花,等.肉鸡蛋氨酸的营养研究进展[J].现代农业,2015(5):92-94.
[10]谢明,侯水生,刘福柱.蛋氨酸毒性及其中毒机制的研究进展[J].饲料博览,2002(4):14-15.
[11]李亮.蛋氨酸对雉鸡的生长、肉质、抗氧化性及免疫功能的影响[D].长春:吉林大学,2017.
[12]姚元枝,贺建华,简友全,等.雪峰乌骨鸡蛋氨酸需要量的研究[J].湖南农业大学学报(自然科学版),2004(2):148-152.
[13]瞿明仁,游金明,熊玲玲,等.泰和丝毛乌骨鸡早期(0~12周龄)蛋氨酸需要量研究[J].畜牧兽医学报,2004(5):590-593.
[14]洪平,蒋守群,胡友军,等.46~53周龄黄羽肉种鸡蛋氨酸需要量研究[J].中国畜牧杂志,2013,49(23):31-35.
[15]张静,闵育娜,刘少凯,等.略阳乌鸡13~18周龄蛋氨酸需要量的研究[J].畜牧与兽医,2015,47(1):9-15.
[16]杨秀娟,顾娇娇,邓斌,等.7~12周龄武定鸡蛋氨酸需要量的研究[J].饲料工业,2016,37(8):6-11.
[17]寇涛,胡志萍,董丽,等.二甲基甘氨酸钠对肉鸡屠宰性能、肉品质及肌肉抗氧化能力的影响[J].食品科学,2015,36(5):179-184.
[18]蒋雪樱,张相伦,陆鹏,等.蛋氨酸对肉鸡屠宰性能、肉品质及肌肉抗氧化的影响[J].食品科学,2016,37(21):114-118.
[19]MCDEVITT R,MACK S,WALLISS I.The effect of DL-methionine and betaine supplementation on growth performance and carcass composition in male broilers[C]//Proceedings of the Australian Poultry Science Symposium Sydney Australia,1999,73-77.