Olfaz Mustafa, Kilic Unal, Boga Mustafa, Abdi Abdiwali Mohamoud
University of Ondokuz Mayis, Faculty of Agriculture, Department of Animal Science, 55139 Samsun, Turkey.
University of Omer Halisdemir, Bor Vocational School, 51700 Nigde, Turkey.
Open Life Sci. 2018 Aug 21;13:269-278. doi: 10.1515/biol-2018-0033. eCollection 2018 Jan.
This study was conducted to determine the potential nutritive value and gas production (IVGP) parameters of . (Olive = OL, . (Mulberry = ML) and . (Sour orange = SOL) tree leaves. Hohenheim gas test was used to determine the gas productions of the leaves. The gas production of samples over time was recorded for 3, 6, 9, 12, 24, 48, 72 and 96 h after incubation. Completely Randomized Design was used to compare gas production, and gas production kinetics of samples. The findings of the present study suggested that there were differences among the tree leaves in terms of crude protein, NDF, gas productions, organic matter digestibility (OMD), metabolisable energy (ME), net energy lactation (NE) and relative feed values (RFV) (P<0.01). ML had the highest condensed tannin contents (P<0.05), gas production (IVGP), OMD and energy values (P<0.01). SOL had highest RFV values. OL showed the lowest IVGP when compared to SOL and ML. Low NDF and ADF contents of SOL would probably increase the voluntary intake, digestibility and relative feed values of these leaves by ruminants. In conclusion, it was determined that OL, ML and SOL used in the study have low gas production and can be utilized as alternative roughage feed in ruminants. However, it is recommended that the results obtained from this research should be tested in studies.
本研究旨在确定油橄榄（OL）、桑树（ML）和酸橙（SOL）树叶的潜在营养价值和产气（IVGP）参数。采用霍恩海姆产气试验来测定树叶的产气量。在培养后3、6、9、12、24、48、72和96小时记录样品随时间的产气量。采用完全随机设计来比较样品的产气量和产气动力学。本研究结果表明，在粗蛋白、中性洗涤纤维、产气量、有机物消化率（OMD）、代谢能（ME）、泌乳净能（NE）和相对饲用价值（RFV）方面，树叶之间存在差异（P<0.01）。ML的缩合单宁含量最高（P<0.05），产气量（IVGP）、OMD和能量值最高（P<0.01）。SOL的RFV值最高。与SOL和ML相比，OL的IVGP最低。SOL较低的中性洗涤纤维和酸性洗涤纤维含量可能会提高反刍动物对这些树叶的采食量、消化率和相对饲用价值。总之，研究确定本研究中使用的OL、ML和SOL产气量较低，可作为反刍动物的替代粗饲料。然而，建议本研究获得的结果应在进一步研究中进行验证。
