茴香、向日葵、棉花副产品配比苜蓿对饲粮组合效应研究

doi:10.11686/cyxb2017121

草业学报 ›› 2018, Vol. 27 ›› Issue (2): 163-172.DOI: 10.11686/cyxb2017121

茴香、向日葵、棉花副产品配比苜蓿对饲粮组合效应研究

袁玖^{1, *}, 万欣杰²

1.甘肃农业大学动物科学技术学院, 甘肃兰州 730070;
2.兰州联邦饲料有限公司,甘肃兰州 730060

收稿日期:2017-03-20 修回日期:2017-05-05 出版日期:2018-02-20 发布日期:2018-02-20
作者简介:袁玖(1980-),女,新疆乌鲁木齐人,讲师,硕士。E-mail: yuanj@gsau.edu.cn；*通信作者Corresponding author.
基金资助:
甘肃农业大学动物科学技术学院青年教师基金项目(2017001)资助

In vitro study on the effect of supplementing an alfalfa diet with straw or shells of fennel, sunflower, and cotton, and their associative effects

YUAN Jiu^{1, *}, WAN Xin-jie²

1.College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China;
2.Lanzhou Federal Feed Limited Company, Lanzhou 730060, China

Received:2017-03-20 Revised:2017-05-05 Online:2018-02-20 Published:2018-02-20

摘要/Abstract

摘要： 为了探讨茴香秸秆、茴香秕壳、向日葵秸秆、向日葵盘、棉花秸秆、棉桃壳6种农作物副产品(秸秆或秕壳)与苜蓿配比对饲粮组合效应的影响,本试验采用体外产气法测定了在精粗比30∶70时,精料补充料∶秸秆或秕壳∶苜蓿干草为30∶70∶0,30∶63∶7,30∶56∶14,30∶49∶21,30∶42∶28,30∶35∶35,30∶28∶42,30∶21∶49,30∶14∶56,30∶7∶63,30∶0∶70时的11组饲料组合及8种原料分别培养2,4,6,9,12,24,36,48,72,96 h内的产气量,并通过24 h产气量和各组合的加权估算值计算出各组合的组合效应值(AE)。6种秸秆或秕壳共(11×6)+8个原料=74种饲粮组合。结果表明:14%、7%和0茴香秸秆组的效应较大,依次为58.74%,54.18%和77.91%,极显著高于70%、63%和56%组(P<0.01)。茴香秕壳各组的AE均为正值。7%、14%、21%、28%向日葵秸秆组的AE较大,其中7%向日葵秸秆组的AE最大,为124.84%。向日葵盘各组的AE均为正值,7%向日葵盘组的AE值最大,为143.84%。0,70%,7%棉花秆组的AE依次为77.91%,57.76%和54.56%。7%,14%,21%和0棉桃壳组的AE分别为139.05%,100.09%,86.22%和77.91%。结论7%,14%,21%秸秆或秕壳组AE较大,可节省苜蓿干草。

Abstract: We investigated the effects of supplementing an alfalfa diet with fennel straw, fennel shells, sunflower straw, sunflower plates, cotton straw, and cotton shells, and their associative effects (AE), in an in vitro experiment. The concentrate∶straw/shell∶alfalfa ratios were 30∶70∶0, 30∶63∶7, 30∶56∶14, 30∶49∶21, 30∶42∶28, 30∶35∶35, 30∶28∶42, 30∶21∶49, 30∶14∶56, 30∶7∶63, 30∶0∶70 in diets with a concentrate∶roughage ratio of 30∶70. Gas production (GP) was recorded at 0, 2, 4, 6, 9, 12, 24, 36, 48, 72, and 96 h. The AE was defined as the difference between the observed in vitro GP and the predicted value from the individual feed fermented alone. In total, there were 74 groups that included straws or shells: (11×6)+8=74. The AEs of the groups with 14%, 7%, and 0% fennel straw were 58.74%, 54.18%, and 77.91%, respectively, significantly higher than the AEs of the groups with 70%, 63%, and 56% fennel straw (P<0.01). The AEs of all groups with fennel shell were positive. The AEs were also high for the groups containing 7%, 14%, 21%, and 28% sunflower straw, with the highest AE (124.84%) for the group containing 7% sunflower straw. The AE of all groups containing sunflower plates were positive, and the highest AE was in the group with 7% sunflower plates (143.84%). The AE of the groups containing 0%, 70%, and 7% cotton straw were 77.91%, 57.76%, and 54.56%, respectively. The highest AE among the groups containing cotton shells was 139.05% in the group containing 7% cotton shell. The AE of the groups containing 14%, 21%, and 0% cotton shells were 100.09%, 86.22%, and 77.91%, respectively. We conclude that addition of straw or shells at 7%, 14%, or 21% is an effective strategy to extend alfalfa.

袁玖, 万欣杰. 茴香、向日葵、棉花副产品配比苜蓿对饲粮组合效应研究[J]. 草业学报, 2018, 27(2): 163-172.

YUAN Jiu, WAN Xin-jie. In vitro study on the effect of supplementing an alfalfa diet with straw or shells of fennel, sunflower, and cotton, and their associative effects[J]. Acta Prataculturae Sinica, 2018, 27(2): 163-172.

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茴香、向日葵、棉花副产品配比苜蓿对饲粮组合效应研究

In vitro study on the effect of supplementing an alfalfa diet with straw or shells of fennel, sunflower, and cotton, and their associative effects

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