■这项研究旨在检查热带地区反刍动物饲料中非必需氨基酸(NEAA)的浓度,专注于印度尼西亚的牧草和豆类。
■总共11种草(Chrysopogonzizanioides,Brachiariabrizantha,肱骨腕带,膨胀天冬树,Paspalumatatum,Chlorisgayana,狼尾草,Panicummaximum,Cenchrusbiflorus,仙人掌,和Digotariadecumbens)和六种豆类(Arachishypogaea,PuearariaJavanica,毛囊,丁香,和Arachispintoi)使用高效液相色谱(HPLC)分析NEAA含量。
■根据这项研究的结果,发现牧草中几乎所有NEAA含量均低于3%(丝氨酸(Ser),丙氨酸(Ala),甘氨酸(Gly),酪氨酸(Tyr),脯氨酸(Pro),半胱氨酸(Cys),和天冬酰胺(Asn),除了谷氨酸(Glu)酸和精氨酸(Arg)在一些豆类。草中的Glu含量范围为0.76%至2.61%,Arg含量范围为0.92%至2.09%。这两个NEAA在草和豆类中最丰富,浓度为5.10%至6.27%和3.10%至5.53%,分别。
■我们的研究得出结论,Glu和Arg是印度尼西亚热带牧草中最丰富的NEAA,与草相比,豆科植物的NEAA浓度更高。在豆类中,A.hypogaea具有最高的NEAA含量(23.40%),而在牧草中,zizanioides的NEAA含量最高(12.37%)。然而,据观察,无论是豆类还是草都无法满足获得牛的可代谢TNEAA要求(250公斤的空体重增加),与商业浓缩物不同,被发现符合要求,尤其是对于Arg,Glu,还有甲状腺氨酸.必须提供浓缩物以补充饲料,以满足NEAA对牛的需求。
UNASSIGNED: This study aimed to examine the concentration of nonessential amino acids (NEAAs) in ruminant feed in tropical areas, with a focus on forage grasses and legumes in Indonesia.
UNASSIGNED: A total of 11 grasses (Chrysopogon zizanioides, Brachiaria brizantha, Brachiaria humidicola, Paspalum dilatatum, Paspalum atatum, Chloris gayana, Pennisetum polystachion, Panicum maximum, Cenchrus biflorus, Andropogon canaliculatus, and Digotaria decumbens) and six legumes (Arachis hypogaea, Pueararia Javanica, Centrosema pubescens, Clitoria ternatea, and Arachis pintoi) were analyzed for NEAA content using high-performance liquid chromatography (HPLC).
UNASSIGNED: Based on the results of this research, it was found that almost all NEAA content in forage was less than 3% (Serine (Ser), Alanine (Ala), Glycine (Gly), Tyrosine (Tyr), Proline (Pro), Cysteine (Cys), and Asparagine (Asn), except for glutamic (Glu) acid and arginine (Arg) in some legumes. The Glu content in grass ranges from 0.76% to 2.61%, and the Arg content ranges from 0.92% to 2.09%. These two NEAAs were most abundant in grasses and legumes, with concentrations of 5.10% to 6.27% and 3.10% to 5.53%, respectively.
UNASSIGNED: Our study concluded that Glu and Arg were the most abundant NEAAs in tropical forages in Indonesia, with legumes having a higher concentration of NEAAs compared to grasses. Among the legumes, A. hypogaea had the highest NEAA content (23.40%), while among the forages, C. zizanioides had the highest NEAA content (12.37%). However, it was observed that neither legumes nor grasses could fulfill the metabolizable TNEAAs requirements for gaining cattle (250 kg of empty body weight gain), unlike commercial concentrates, which were found to meet the requirements, especially for Arg, Glu, and thyronine. The provision of
concentrate is necessary to supplement forage to meet the NEAA needs for cattle.