A review of okara (soybean curd residue) utilization as animal feed : Nutritive value and animal performance aspects

© 2021 Japanese Society of Animal Science..

Year by year, huge quantities of by-products are generated during the manufacturing process of soybean-based products. Okara is one of the by-products, and it is an insoluble portion of the soybean. It consists of high moisture (8.4-22.9%); on dry matter basis, it contains high metabolizable energy (9.0-14.2 MJ/kg) and other components that include crude protein (20.9-39.1%), crude fiber (12.2-61.3%), crude fat (4.9-21.5%), and ash (3.4-5.3%). Fermentation of okara improves its nutritional quality and reduces its anti-nutrient contents. Due to animals' palatability, okara can be used to replace the soybean meal/concentrate feed partially or completely in ruminant's diet and partially in nonruminant's diet. Okara feeding does not depress the intake, digestibility, growth, milk production, blood metabolic profiles, and meat quality of animals. However, this by-product decays quickly due to its high moisture content, and its heavy weight and sticky nature make it difficult to process and expensive to dry using conventional methods. This paper thoroughly summarizes the utilization of okara as animal feed in the cause of developing a general guideline with favorable levels of inclusion in the diets of animals for its exploitation and valorization. This review will encourage further research to develop eco-friendly and value added feed for animals.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:92

Enthalten in:

Animal science journal = Nihon chikusan Gakkaiho - 92(2021), 1 vom: 07. Jan., Seite e13594

Sprache:

Englisch

Beteiligte Personen:

Rahman, Mohammad Mijanur [VerfasserIn]
Mat, Khairiyah [VerfasserIn]
Ishigaki, Genki [VerfasserIn]
Akashi, Ryo [VerfasserIn]

Links:

Volltext

Themen:

Animal performance
Anti-nutrients
Chemical composition
Fermentation
Journal Article
Okara
Review

Anmerkungen:

Date Completed 10.02.2022

Date Revised 13.12.2023

published: Print

Citation Status MEDLINE

doi:

10.1111/asj.13594

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM328342297