Article Number: DRJA36074545
Vol.4 (7), pp. 176-181, July 2016
Copyright © 2016
Author(s) retain the copyright of this article
Original Research Article
Red (Brassica oleracea var. capitata) and White (Brassica oleracea var. botrytis) Cabbage Leaves Nutritional Value as Forage Feed: Comparison Study of In Vitro Gas Production and Determination of Chemical Composition
An in vitro rumen gas production technique was used to compare chemical composition and nutritive value of red (Brassica oleracea var. capitata) and white (Brassica oleracea var. botrytis) cabbage leaves (Brassicaceae). There were no significant differences in either extract concentration, but other chemical composition (such as Neutral detergent fiber: NDF; Acid detergent fiber: ADF; Ash, and Dry matter concentrations) was significantly higher for red cabbage leaves (RCL) and the crude protein (CP) concentration was higher (p<0.05) for white cabbage leaves (WCL). Total gas produced at 24, 48 h and Bgas (gas production from the insoluble but fermentable fraction; ml) was significantly highest for WCL than to RCL (p<0.05). The highest (P<0.05) estimated parameters from in vitro gas production values (Organic matter digestibility: OMD; Metabolisable energy: ME; Short chain fatty acid: SCFA, and microbial protein yield) were observed for WCL. In vitro rumen gas production can be used as a method to distinguish differences in nutritive value of forages like this study. A difference between two forage species in chemical composition is responsible for the fermentation pattern. Fresh agricultural waste, particularly leaves from RCL and WCL, should be a suitable feed for ruminants, although it seems that the nutritional value of WCL is better than RCL.
Key words: Brassicaceae, in vitro, chemical composition, gas production.
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MANUSCRIPT REVIEWED BY:
Dr. G.A. Pesewu
Department of Medical Laboratory Sciences (MEDLAB), School of Biomedical and Allied Health Sciences, College of Health Sciences, University of Ghana, PO Box KB 143, Korle-Bu, Accra, Ghana.
PMAS-ARID AGRICULTURE UNIVERSITY, RAWALPINDI,PAKISTAN.