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RESEARCH ARTICLE
Contents Vol 50(2)

Effect of microwave treatment on lucerne fodder

Graham Brodie A B , Craig Rath A , Merita Devanny A , Jessica Reeve A , Carmel Lancaster A , Gerry Harris A , Sarah Chaplin A and Chris Laird A
+ Author Affiliations
- Author Affiliations

A Dookie Campus, Melbourne School of Land and Environment, University of Melbourne, Dookie, Vic. 3647, Australia.

B Corresponding author. Email: grahamb@unimelb.edu.au

Animal Production Science 50(2) 124-129 https://doi.org/10.1071/AN09085
Submitted: 26 May 2009  Accepted: 4 January 2010   Published: 11 February 2010

Abstract

Preliminary research has suggested that in vitro dry matter disappearance of some poor-quality fodder materials can be improved by microwave treatment. A laboratory-scale experiment that treated 50-g samples of lucerne hay in a 750-W microwave oven for 0, 40 and 80 s revealed that dry matter percentage increased by 1.7% as microwave treatment time increased from 0 to 80 s. The in vitro dry matter disappearance increased by 14.9% as microwave treatment increased from 0 to 80 s; however, there was no significant change in crude protein due to excessive variability in the results. This experiment was followed up with a larger-sample experiment in which 25-kg bags of lucerne fodder were treated for 7.5, 15, 22.5 or 30 min in an experimental 6-kW microwave chamber. Dry matter percentage increased by 7.2% as microwave treatment time increased from 0 to 30 min. Microwave treatment significantly increased dry matter disappearance during the in vitro digestion study; however, there were no significant differences between the various microwave treatment times. The 15-min treatment resulted in the greatest increase in dry matter disappearance (5.9%). The crude protein retained in the digestion residues increased by 19.2% as microwave treatment increased from 0 to 30 min. These laboratory studies were followed up with an animal response study in which 22 12–14-month-old Merino wethers were randomly allocated into either a group receiving a maintenance ration of untreated lucerne or a group receiving the same weight of microwave-treated lucerne. The average weight of the control group fluctuated around their starting weight during the 5-week-long trial, as would be expected from feeding a maintenance ration. By the end of the trial their average weight was 0.4% higher than when they started. However the group being fed the microwave-treated lucerne gained 8.1% of their initial bodyweight by the end of the trial.


References


Antti AL, Perre P (1999) A microwave applicator for on line wood drying: Temperature and moisture distribution in wood. Wood Science and Technology 33, 123–138.
| Crossref | GoogleScholarGoogle Scholar | CAS | open url image1

Arrieta A, Otaegui D, Zubia A, Cossio FP, Diaz-Ortiz A , et al . (2007) Solvent-free thermal and microwave-assisted [3 + 2] cycloadditions between stabilized azomethine ylides and nitrostyrenes. An experimental and theoretical study. The Journal of Organic Chemistry 72, 4313–4322.
| Crossref | GoogleScholarGoogle Scholar | CAS | PubMed | open url image1

Ayappa KG, Davis HT, Crapiste G, Davis EJ, Gordon J (1991) Microwave heating: An evaluation of power formulations. Chemical Engineering Science 46, 1005–1016.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Barbano DM, Clark JL (1990) Kjeldahl method for determination of total nitrogen content of milk: collaborative study. Journal – Association of Official Analytical Chemists 73, 849–859.
|  CAS |
open url image1

Bond EJ, Li X, Hagness SC, Van Veen BD (2003) Microwave imaging via space-time beamforming for early detection of breast cancer. IEEE Transactions on Antennas and Propagation 51, 1690–1705.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Brodie G (2007) Simultaneous heat and moisture diffusion during microwave heating of moist wood. Applied Engineering in Agriculture 23, 179–187. open url image1

Brodie G (2008a) The influence of load geometry on temperature distribution during microwave heating. Transactions of the ASABE 51, 1401–1413. open url image1

Brodie GI (2008 b) ‘Innovative wood drying: applying microwave and solar technologies to wood drying.’ (VDM Verlag: Saarbruecken, Germany)

Chow Ting Chan TV , Reader HC (1996) Computational design of a multiple magnetron cavity. In ‘IEEE Afrocon 4th’. Stellenbosch, South Africa. pp. 523–527. (Institute of Electrical and Electronic Engineers)

Dong S, Long R, Zhang D, Hu Z, Pu X (2005) Effect of microwave treatment on chemical composition and in sacco digestibility of wheat straw in yak cow. Asian-Australasian Journal of Animal Sciences 18, 27–31. open url image1

Harris GA , Brodie GI , Taube A (2008) Design of a microwave chamber for the purpose of drying of wood components for furniture. In ‘Recent advances in high power microwave research and applications conference’. Geelong, Australia. (Ed. N Tran)

Hasna A, Taube A, Siores E (2000) Moisture monitoring of corrugated board during microwave processing. Journal of Electromagnetic Waves and Applications 14, 1563–1572.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Hill JM, Marchant TR (1996) Modelling microwave heating. Applied Mathematical Modelling 20, 3–15.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Jones RW, Beckwith AC, Khoo U, Inglett GE (1970) Protein composition of Proso Millet. Agricultural and Food Chemistry 18, 37–39.
|  CAS | Crossref |
open url image1

Macfarlane JM, Lewis RM, Emmans GC (2004) Effects of two dried forages, and a choice between them, on intake, growth and carcass composition in lambs of two breeds and their cross. Animal Science 78, 485–496.
|  CAS |
open url image1

McLeod MN, Minson DJ (1978) The accuracy of the pepsin–cellulase technique for estimating the dry matter digestibility in vivo of grasses and legumes. Animal Feed Science and Technology 3, 277–287.
| Crossref | GoogleScholarGoogle Scholar | CAS | open url image1

McLeod MN, Minson DJ (1980) A note on Onozuka 3s cellulase as a replacement for Onozuka SS (P1500) cellulase when estimating forage digestibility in vitro. Animal Feed Science and Technology 5, 347–350.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Meredith RJ (1994) A three axis model of the mode structure of multimode cavities. The Journal of Microwave Power and Electromagnetic Energy 29, 31–44. open url image1

Metaxas AC , Meredith RJ (1983) ‘Industrial microwave heating.’ (Peter Peregrinus: London)

Nelson SO (1972) Insect-control possibilities of electromagnetic energy. Cereal Science Today 17, 377–387. open url image1

Nelson SO (2003) Microwave and radio-frequency power applications in agriculture. In ‘Third world congress on microwave and radio frequency applications’. Sydney. (Eds DC Folz, JH Booske, DE Clark, JF Gerling) pp. 331–340. (The American Ceramic Society: Westerville, OH)

Nelson SO, Stetson LE (1985) Germination responses of selected plant species to RF electrical seed treatment. Transactions of the ASAE. American Society of Agricultural Engineers 28, 2051–2058. open url image1

Sadeghi AA, Shawrang P (2006a) Effects of microwave irradiation on ruminal degradability and in vitro digestibility of canola meal. Animal Feed Science and Technology 127, 45–54.
| Crossref | GoogleScholarGoogle Scholar | CAS | open url image1

Sadeghi AA, Shawrang P (2006b) Effects of microwave irradiation on ruminal protein and starch degradation of corn grain. Animal Feed Science and Technology 127, 113–123.
| Crossref | GoogleScholarGoogle Scholar | CAS | open url image1

Sadeghi AA, Nikkhaha A, Shawrang P (2005) Effects of microwave irradiation on ruminal degradation and in vitro digestibility of soya-bean meal. Animal Science 80, 369–375.
| Crossref | GoogleScholarGoogle Scholar | CAS | open url image1

Sklan D, Tinsky M (1993) Production and reproduction responses by dairy cows fed varying undegradable protein coated with rumen bypass fat. Journal of Dairy Science 76, 216–223.
|  CAS | PubMed |
open url image1

Torgovnikov G , Vinden P (2003) Innovative microwave technology for the timber industry. In ‘Microwave and radio frequency applications: proceedings of the third world congress on microwave and radio frequency applications’. (Eds DC Folz, JH Booske, DE Clark, JF Gerling) pp. 349–356. (The American Ceramic Society: Westerville, OH)

Vriezinga CA (1996) Thermal runaway and bistability in microwave heated isothermal slabs. Journal of Applied Physics 79, 1779–1783.
| Crossref | GoogleScholarGoogle Scholar | CAS | open url image1

Vriezinga CA (1998) Thermal runaway in microwave heated isothermal slabs, cylinders, and spheres. Journal of Applied Physics 83, 438–442.
| Crossref | GoogleScholarGoogle Scholar | CAS | open url image1

Vriezinga CA (1999) Thermal profiles and thermal runaway in microwave heated slabs. Journal of Applied Physics 85, 3774–3779.
| Crossref | GoogleScholarGoogle Scholar | CAS | open url image1

Vriezinga CA, Sanchez-Pedreno S, Grasman J (2002) Thermal runaway in microwave heating: a mathematical analysis. Applied Mathematical Modelling 26, 1029–1038.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Zielonka P, Dolowy K (1998) Microwave drying of spruce: moisture content, temperature and heat energy distribution. Forest Products Journal 48, 77–80. open url image1