饲粮减少矿物元素对育肥猪生长性能、肉品质、血清生化指标以及骨骼肌矿物元素含量的影响

发布时间：2018-09-02 06:04

【摘要】：本试验旨在研究饲粮中减少铁、锰、锌、镁和铜5种矿物元素添加量对育肥猪后期生长性能、肉品质、血清生化指标以及骨骼肌矿物元素含量的影响。选用体况良好、体重接近[(76.17±1.58)kg]的"杜×长×大"三元杂交育肥猪300头,随机分成3个组,每组10个重复,每个重复10头猪,公母各占1/2。对照组饲喂基础饲粮,试验组饲喂在基础饲粮基础上减少30%或60%矿物元素的饲粮。预试期3 d,正试期30 d。结果表明:与对照组相比,1)饲粮减少30%和60%矿物元素对育肥猪的生长性能和肉品质无显著影响(P0.05);2)饲粮减少30%和60%矿物元素,育肥猪血清氨含量显著升高(P0.05);减少60%矿物元素显著降低血清中总胆固醇的含量(P0.05),同时有降低血清总蛋白含量的趋势(P0.10);3)饲粮减少30%矿物元素对育肥猪骨骼肌中各矿物元素含量并无显著影响(P0.05),而减少60%矿物元素使得骨骼肌铜、铁和锰元素含量显著降低(P0.05)。由此得知,育肥猪饲粮中铁、锰、锌、镁和铜元素的含量可减少NRC(2012)推荐量的30%,而不会影响育肥猪后期的生长性能和肉品质。
[Abstract]:The purpose of this experiment was to study the effects of reducing iron, manganese, zinc, magnesium and copper in diet on growth performance, meat quality, serum biochemical index and skeletal muscle mineral element content of fattening pigs. A total of 300 "du 脳 long 脳 large" crossbred fattening pigs with a body weight close to [(76.17 卤1.58) kg] were selected and randomly divided into 3 groups, 10 replicates in each group, 10 pigs in each group, and 1 / 2 in male and female. The control group was fed with basic diet and the experimental group was fed with 30% or 60% reduction of mineral elements on the basis of basic diet. The pre-test period was 3 days and the current test period was 30 days. The results showed that: compared with the control group, there was no significant effect on the growth performance and meat quality of fattening pigs by 30% and 60% mineral elements in diet (P0.05). The content of ammonia in serum of fattening pigs increased significantly (P0.05), the content of total cholesterol in serum decreased significantly by 60% mineral element (P0.05), and the content of total protein in serum decreased (P0.10) / 3) the mineral elements in skeletal muscle of fattening pigs were reduced by 30%. There was no significant effect on the content of substance elements (P0.05), but the reduction of mineral elements by 60% resulted in copper in skeletal muscle. The contents of Fe and mn decreased significantly (P0.05). The results showed that the contents of Fe, mn, Zn, mg and Cu in diet of fattening pigs could decrease 30% of the recommended amount of NRC (2012), but not affect the growth performance and meat quality of fattening pigs.
【作者单位】：中国科学院亚热带农业生态研究所中国科学院亚热带农业生态过程重点实验室;湖南师范大学生命科学学院动物营养与人类健康实验室;新希望六和股份有限公司;中国科学院大学研究生院;湖南畜禽安全生产协同创新中心;
【基金】：国家重点研发计划(2016YFD0501201,2016YFD0200900) 湖南省自然科学基金面上项目(S2014J504I) 中国科学院青年创新促进会项目(2016326)
【分类号】：S828.5

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