National Salinity Research Center, Agricultural Research, Education and Extension Organization, Yazd, 8917357676, Iran.
National Salinity Research Center, Agricultural Research, Education and Extension Organization, Yazd, 8917357676, Iran.
Environ Res. 2023 Feb 15;219:114954. doi: 10.1016/j.envres.2022.114954. Epub 2022 Dec 16.
This study was carried out to evaluate the forage quantity and quality of several halophyte species grown in arid-saline environments. After identifying 44 halophytic species in the region and considering the potential of quantitative and qualitative forage production, 13 species from four families, i.e. Amaranthaceae, Asteraceae, Leguminosae and Convolvulaceae, and eight genera were selected for further evaluation. These species differed significantly in terms of both forage quantity, measured in terms of fresh (FW) and dry weight (DW), and forage quality assessed in terms of tissue water content (TWC), ash, nitrogen content (N), crude protein (CP), acid detergent fiber (ADF), neutral detergent fiber (NDF), dry matter digestibility and metabolizable energy (ME). The highest fresh and dry weights were obtained from Suaeda ferticosa (1006.3 g and 306.3 g, respectively) and Noaea mucronata (909.3 g and 309 g, respectively). However, based on forage quality characteristics, Alhagi maurorum, Bassia scoparia, Noaea mucronata, Halostachys belangriana and Cressa cretica showed the best forage potential. Values of ash, CP, ADF, NDF and ME measured in the halophytes species ranged between 7.9% and 33.2%, 6.2% and 15.8%, 30.0% and 50.3%, 33.2% and 56.4%, 5.6 and 8.7 MJ kg, respectively. The forage quality of the evaluated halophytic plants was influenced by unfavorable environmental conditions such as high soil salinity and low rainfall, however, these species can be considered as new sources of forage. Nevertheless, further studies are needed to improve the quality of such halophytic species by reducing the ash content and increasing the ME.
本研究旨在评估在干旱盐渍环境中生长的几种盐生植物的饲用数量和质量。在该地区鉴定出 44 种盐生植物，并考虑到其数量和质量的潜在饲用生产能力后，从 4 个科，即苋科、菊科、豆科和旋花科中选择了 13 个种，以及 8 个属进行进一步评估。这些物种在饲用数量（鲜重 FW 和干重 DW）和饲用质量（组织水分含量 TWC、灰分、氮含量 N、粗蛋白 CP、酸性洗涤纤维 ADF、中性洗涤纤维 NDF、干物质消化率和可代谢能 ME）方面存在显著差异。苏达非托萨（Suaeda ferticosa）和无刺滨藜（Noaea mucronata）的鲜重和干重最高，分别为 1006.3 g 和 306.3 g，909.3 g 和 309 g。然而，根据饲用质量特征，骆驼刺（Alhagi maurorum）、沙拐枣（Bassia scoparia）、无刺滨藜、盐节木（Halostachys belangriana）和滨藜（Cressa cretica）具有最佳的饲用潜力。在所评估的盐生植物中，灰分、CP、ADF、NDF 和 ME 的含量范围分别为 7.9%-33.2%、6.2%-15.8%、30.0%-50.3%、33.2%-56.4%和 5.6-8.7 MJ/kg。评价的盐生植物的饲用质量受到不利环境条件的影响，如高土壤盐分和低降雨量，但这些物种可以被视为新的饲用来源。然而，需要进一步的研究来改善这些盐生植物的质量，方法是降低灰分含量和提高 ME。
