Talukder, S., Gardiner, C., O'Reagain, J., and Cavalieri, J. (2026) Evaluation of protein fractionations of two recognised and two novel tropical legumes for the seasonally dry tropics of northern Australia. In: Proceedings of the 37th Biennial Conference of the Australian Association of Animal Sciences (36) p. 37. From: 37th Biennial Conference of the Australian Association of Animal Sciences, 13-17 July 2026, Adelaide, SA, Australia.

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Abstract

The results confirm the hypothesis that substantial variation exists in protein fractionation among tropical legumes, with important implications for grazing system design. Leucaena leucocephala demonstrated superior protein concentration and ruminal degradability, supporting its established role as a high-quality protein supplement for northern Australian beef production systems. Conversely, Cajanus cajan with a greater undegradable protein fraction, may provide a complementary nitrogen source that moderates rapid rumen ammonia release when included in mixed-legume pastures. Stylosanthes viscosa and Vigna lanceolata were intermediate in CP and degradability. These findings provide practical information for producers seeking to optimise pasture composition to improve nitrogen-use efficiency, reduce urinary nitrogen losses, and enhance animal productivity in seasonally dry tropical environments. Strategic inclusion of legumes with contrasting protein degradation profiles may improve rumen function and overall system performance.

Item ID:	92919
Item Type:	Conference Item (Abstract / Summary)
Date Deposited:	13 Aug 2026 00:37
FoR Codes:	30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3003 Animal production > 300303 Animal nutrition @ 100%
SEO Codes:	10 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 1005 Pasture, browse and fodder crops > 100599 Pasture, browse and fodder crops not elsewhere classified @ 100%
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