Asian-Australas J Anim Sci. Search


Asian-Australas J Anim Sci > Volume 16(8); 2003 > Article
Animal Breeding and Genetics
Asian-Australasian Journal of Animal Sciences 2003;16(8): 1126-1130.
DOI:    Published online January 1, 2003.
Evaluation of Methods for Determination of Bulk Density of Eight Kinds of Forage under Air-dry and Wet Conditions
J. Sekine, Hossam E. M. Kamel, Abdel Nasir M. A. Fadel El-Seed, M. Hishinuma
The conditions of measurement for the determination of bulk density were evaluated to assess the bulkiness of 8 kinds of forage. The bulkiness of the forages was determined with 4 different sizes of forage samples with 7 different pressure application under air-dry and wet conditions. The dry bulk density (DBD) curvilinearly regressed with the pressure applied. The particle size of the samples and kinds of forage used in the present study did not affect changes in values of DBD determined under pressures over 20 g/cm2 up to 200 g/cm2. The values of the wet bulk density (WBD) increased as an increment of particle size, but were not always regressed on the particle size of the 8 kinds of forage. The DBD determined on 8 mm particles showed a higher correlation coefficient with neutral detergent fiber (NDF) contents. The DBD may be a useful tool for the assessment of NDF in forage, when it is determined under condition of a pressure of 100 g/cm2 or over with a particle size of 8 mm. The WBD may not be utilized for the direct measurement of the physical characteristics of forage, but may be required a thorough consideration on water solubility of forages. Further studies are needed to clarify the DBD contribution to the prediction of forage intake by ruminants.
Keywords: Forage; Dry Bulk Density; Wet Bulk Density; Ruminants
Share :
Facebook Twitter Linked In Google+
METRICS Graph View
  • 0 Crossref
  •  0 Scopus
  • 1,323 View
  • 3 Download

Editorial Office
Asian-Australasian Association of Animal Production Societies(AAAP)
Room 708 Sammo Sporex, 23, Sillim-ro 59-gil, Gwanak-gu, Seoul
08776, Korea   TEL : +82-2-888-6558    FAX : +82-2-888-6559   
E-mail :               

Copyright © 2018 by Asian-Australasian Journal of Animal Sciences. All rights reserved.

Developed in M2community

Close layer
prev next