Nonessential amino acids in tropical ruminant feed: Investigating grass and legume forages of Indonesia.

Autor:	Tresia GE; Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency Cibinong Science Center, Cibinong Science Center, Cibinong, Indonesia., Anggraeny YN; Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency Cibinong Science Center, Cibinong Science Center, Cibinong, Indonesia., Winarsih WH; East Java Regional Research and Innovation Agency, Surabaya, East Java, Indonesia., Setiasih S; Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency Cibinong Science Center, Cibinong Science Center, Cibinong, Indonesia., Rohaeni ES; Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency Cibinong Science Center, Cibinong Science Center, Cibinong, Indonesia., Mariyono M; Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency Cibinong Science Center, Cibinong Science Center, Cibinong, Indonesia., Pamungkas D; Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency Cibinong Science Center, Cibinong Science Center, Cibinong, Indonesia.
Jazyk:	angličtina
Zdroj:	Journal of advanced veterinary and animal research [J Adv Vet Anim Res] 2023 Dec 31; Vol. 10 (4), pp. 820-829. Date of Electronic Publication: 2023 Dec 31 (Print Publication: 2023).
DOI:	10.5455/javar.2023.j739
Abstrakt:	Objective: 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. Materials and Methods: 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). Results: 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. Conclusion: 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. Competing Interests: The authors declare no conflict of interest. (Copyright: © Journal of Advanced Veterinary and Animal Research.)
Databáze:	MEDLINE
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