雷州山羊喜食牧草养分含量及其与相对采食频度相关性分析

发布时间：2018-04-20 12:36

本文选题：雷州山羊 + 天然草场　；参考：《中国畜牧兽医》2017年10期

【摘要】：为了解南方地区天然草场放牧雷州山羊牧食行为,以及天然牧草养分含量与其相对采食频度的相关性,连续7 d跟踪放牧观察记录雷州山羊牧食行为,并且根据雷州山羊采食情况采集牧草样本。试验结果表明,雷州山羊对于大花牵牛、牛筋草、柳叶箬和白茅的相对采食频度分别为55.51%、28.70%、8.13%和(P0.05)1.18%;在测定的几种牧草中,白茅的干物质(DM)(P0.05)、中性洗涤纤维(NDF)(P0.05)和酸性洗涤纤维(ADF)最高,鬼针草的粗蛋白质(CP)(P0.05)、钙(Ca)(P0.05)、磷(P)(P0.05)、粗灰分(Ash)和粗脂肪(EE)最高,柳叶箬的粗纤维(CF)含量最高;雷州山羊的相对采食频度与牧草CP含量的相关系数为0.793(P0.05),与CF含量的相关系数为-0.813(P0.05),与ADF含量的相关系数为-0.328(P0.05),与NDF含量的相关系数为-0.945(P0.01),与Ca含量的相关性系数为0.804(P0.05),与P含量的相关系数为0.735(P0.05)。综上可得,雷州山羊的相对采食频度与天然草场牧草中的CP、Ca和P含量具有显著的正相关关系;与CF、NDF含量具有显著或极显著的负相关关系。
[Abstract]:In order to understand the grazing behavior of Leizhou goats on natural pasture in southern China and the correlation between the nutrient content of natural forage and the relative feeding frequency, the grazing behavior of Leizhou goats was observed and recorded for 7 days. According to the feeding situation of Leizhou goats, forage samples were collected. The results showed that the relative feeding frequency of Leizhou goat was 55.51%, 28.70% and 1.18%, respectively, and the relative feeding frequency of Leizhou goat was 55.51% and 28.70%, respectively, and the dry matter, neutral washing fiber (NDF0. 05) and acid washing fiber (ADF) of white fescue were the highest in several forage grasses, respectively, and the relative feeding frequency of Leizhou goat was 55.51% and 28.70%, respectively, and the relative feeding frequency of Leizhou goat was 28.70% and 1.18%, respectively. The content of crude protein (P0. 05), Cam (P0. 05), P0. 05 (P0. 05), P0. 05 (crude ash) and crude fat (EE) were the highest, and the content of CFC in Indocalamus willow was the highest. The correlation coefficient between relative feeding frequency and CP content of forage grass was 0.793P0.05U, correlation coefficient with CF content was -0.813p 0.05N, correlation coefficient with ADF content was -0.328p 0.05N, correlation coefficient with NDF content was -0.945g P 0.01, correlation coefficient with Ca content was 0.804P0.05a, and with Ca content was 0.804P0.05. The correlation coefficient of P content was 0.735% P0.05A. It can be concluded that the relative feeding frequency of Leizhou goats has a significant positive correlation with the content of CPC Ca and P in natural pasture, and a significant or extremely significant negative correlation with the content of CFC NDF.
【作者单位】：广东海洋大学农学院;
【基金】：雷州山羊杂交改良技术创新(201201149) 雷州山羊提纯复壮及杂交改良技术研究(2013A03009) 舍饲条件下雷州山羊全混合日粮(TMR)的研制(2013A01042) 舍饲条件下雷州山羊养殖关键技术研究与示范(2015A03029) 舍饲雷州山羊全混合日粮(TMR)配方研制及应用(2016LM3189) 广东省大学生创新实验项目(524000087206、CXXL2016048、201610566061)
【分类号】：S827

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