Balyen İlyas, Bozkurt Kiraz Ayfer
Harran University, Graduate School of Natural and Applied Sciences, Şanlıurfa, Turkey.
Harran University, Faculty of Agriculture, Department of Animal Science, Şanlıurfa, Turkey.
Heliyon. 2024 Jul 20;10(14):e34750. doi: 10.1016/j.heliyon.2024.e34750. eCollection 2024 Jul 30.
This study aimed to determine the effect of nutritional values of the "styrax tree" (Styrax officinalis L.) on in vitro gas production, organic matter digestibility (OMD), and metabolic energy (ME) content. In this study, styrax leaf samples were collected for analysis in three different periods: May, July and September. According to the analysis results, crude ash (CA), dry matter (DM), crude fat (CF), acid detergent fiber (ADF) values, and neutral detergent fiber (NDF) increased in September compared to May and July. In September, compared to May, CA has increased by 23 %, DM by 64 %, CM by 30.5 %, ADF by 9.8 %, and NDF by 9.8 %. During the vegetation period, there was an increase in dry matter content in parallel with maturation. The dry matter content of Styrax tree leaves (STL) increased in May (30 %), July (40 %) and September (50 %). Crude protein amounts were found 19 % in May, 17 % in July, and 15 % in September. As the STL grows, decreases in CP, which plays a role in plant growth, and increases in the cell membrane were observed. The CF content in STL changed to 3.2 %, 4.4 %, and 4.3 % in May, July, and September, respectively, with the highest value determined in July and very close to the September value. CA content in styrax tree plants varied by 8.58 % in May, in July by 9.86 %, and in September by 10.56 %. As the amount of dry matter increased according to the periods, the amount of CA also increased. NDF and ADF levels increased in parallel with the vegetation period's development in STL. NDF was found to be 37.5 %, 39.0 %, and 41.5 % according to the periods. ADF amount was found 27 % in May, 28.5 % in July, and 30 % in September. Metabolic energy varied between 8.86 and 10.06 (MJ/kg KM) depending on the periods. When organic matter digestion levels were examined, it was seen that the highest OMD was in July with 58.71 %. Gas production was determined by incubations of 0, 3, 6, 12, 24, 48, 72, and 96 h, and the maximum gas measurement value was in September, July, and May, respectively. As a result of the study, STL can be a good alternative feed source for ruminants when adequate amounts of high-quality feed materials cannot be provided.
本研究旨在确定“安息香树”（Styrax officinalis L.）的营养价值对体外产气、有机物消化率（OMD）和代谢能（ME）含量的影响。在本研究中，于三个不同时期采集安息香叶样本进行分析：五月、七月和九月。根据分析结果，与五月和七月相比，九月的粗灰分（CA）、干物质（DM）、粗脂肪（CF）、酸性洗涤纤维（ADF）值和中性洗涤纤维（NDF）有所增加。九月与五月相比，CA增加了23%，DM增加了64%，CM增加了30.5%，ADF增加了9.8%，NDF增加了9.8%。在植被生长期间，干物质含量随着成熟而增加。安息香叶（STL）的干物质含量在五月为30%，七月为40%，九月为50%。粗蛋白含量在五月为19%，七月为17%，九月为15%。随着STL的生长，观察到在植物生长中起作用的CP含量下降，细胞膜含量增加。STL中的CF含量在五月、七月和九月分别变为3.2%、4.4%和4.3%，最高值在七月，且与九月的值非常接近。安息香树植物中的CA含量在五月变化了8.58%，七月变化了9.86%，九月变化了10.56%。随着干物质含量按时期增加，CA的含量也增加。STL中的NDF和ADF水平随着植被生长时期的发展而平行增加。按时期NDF分别为37.5%、39.0%和41.5%。ADF含量在五月为27%，七月为28.5%，九月为30%。代谢能根据时期在8.86至10.06（MJ/kg KM）之间变化。当检查有机物消化水平时，发现最高的OMD在七月，为58.71%。通过0、3、6、12、24、48、72和96小时的培养测定产气，最大气体测量值分别在九月、七月和五月。研究结果表明，当无法提供足够数量的优质饲料原料时，STL可以成为反刍动物良好的替代饲料来源。
