季节对内蒙古白绒山羊采食牧草及粪便特性的影响 |
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引用本文: | 季节对内蒙古白绒山羊采食牧草及粪便特性的影响. 季节对内蒙古白绒山羊采食牧草及粪便特性的影响[J]. 畜牧与饲料科学, 2015, 36(8): 26-26. DOI: 10.12160/j.issn.1672-5190.2015.08.008 |
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作者姓名: | 季节对内蒙古白绒山羊采食牧草及粪便特性的影响 |
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作者单位: | 内蒙古农业大学动物科学学院,内蒙古呼和浩特010018 |
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基金项目: | 项目来源:现代农业产业技术体系建设专项资金(CARS-40-05);公益性行业(农业)科研专项经费资助(201303059,201003019);内蒙古农业大学博士后基金(108599). |
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摘 要: | 试验分别在春、夏、秋、冬季对内蒙古3种类型白绒山羊成年母羊群所采食主要牧草进行了营养成分分析,并采集粪便以测定其粪便特性,旨在研究季节因素对内蒙古白绒山羊采食牧草及粪便特性的影响,从而为内蒙古白绒山羊粪便的利用提供理论依据。结果表明,内蒙古鄂尔多斯市、阿拉善盟、巴彦淖尔市的牧草DM含量在春季、夏季、秋季、冬季分别为39.60%。53.21%、40.39%~48.81%、64.55%~94.50%、92.00%~95.00%;牧草NDF含量表现为秋、冬季较高,春、夏季较低;牧草CP含量,冬季最低(4.68%~6.17%),春季最高(14.65%~17.44%)。春夏秋冬四季粪便磷浓度平均为1.10%、0.75%、0.71%、0.59%,3种类型内蒙古白绒山羊粪便磷含量季节间差异显著(P〈0.05),春夏两季大于秋冬两季;粪便氮浓度在春夏秋冬四季平均为1.99%、1.7l%、1.61%、1.44%,季节因素对粪便氮含量影响差异显著(P〈0.05),且春季最高,然后呈现逐渐降低的趋势;季节对内蒙古白绒山羊粪便干物质影响较大,阿尔巴斯型白绒山羊季节间表现为差异显著(P〈0.05),二狼山型白绒山羊季节间表现为差异极显著(P〈0.01),阿拉善型白绒山羊季节间表现为差异不显著(P〉0.05),粪便中干物质平均含量春夏秋冬四季依次为72.56%、79.60%、65.52%、95.87%,其中。冬季最高、秋季最低。
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Effects of Seasons on Forage Ingestion and Fecal Characteristics in Inner Mongolian White Cashmere Goats |
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Abstract: | In order to investigate the effect of different seasons on forage ingestion and fecal characteristics in Inner Mongolian white cashmere goats and to provide theoretical basis for the utilization of their faeces, the nutrient analysis was conducted on the main forage ingested by three types of female Inner Mongolian white cashmere goats in spring, summer, autumn, and winter, respectively, and the faecal samples were collected to access their characteristics. The results showed that the ranges of DM of forge in four consecutive seasons in Erdos, Alashan and Bayannur were 39.60%-53.21%, 40.39%-48.81%, 64.55%-94.50% and 92.00%-95.00%. The NDF of the forge was higher in autumn and winter, while it was lower in spring and summer. The CP of the forge was lowest in winter (4.68%-6.17%) and highest in spring (14.65%-17.44%). The mean phosphorus concentrations of faces in four consecutive seasons were 1.10%, 0.75%, 0.71% and 0.59%, respectively. Significant differences were observed in phosphorus concentrations of faces between three types Inner Mongolian white cashmere goats (P 〈 0.05), the phosphorus concentrations in spring and summer were higher than those in autumn and winter; the average nitrogen concentrations of faces in four consecutive seasons were 1.99%, 1.71%, 1.61% and 1.44%, respectively. The effect of different seasons on faecal nitrogen concentrations was statistically significant (P 〈 0.05 ) with peak in spring and then gradually decreasing; seasons had relatively great influences on the faecal dry matter of different types of cashmere goats. In Arbas and Erlangshan cashmere goats, there were significant differences in faecal dry matter between different seasons (P 〈 0.05 and P 〈 0.01). However, in Alxa goats, no significant differences were observed among different seasons (P 〉 0.05), the mean contents of faecal dry matter in four consecutive seasons were 72.56%, 79.60%, 65.52% and 95.87%, respectively. |
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