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You are here: Home > Journals > AN > EA06149
RESEARCH ARTICLE
Contents Vol 47(8)

Supplementary feeding with grain improves the performance of sheep grazing saltbush (Atriplex nummularia) in autumn

J. Franklin-McEvoy A B D , W. D. Bellotti A B and D. K. Revell A B C
+ Author Affiliations
- Author Affiliations

A Discipline of Agricultural and Animal Sciences, The University of Adelaide, Roseworthy, SA 5371, Australia.

B CRC for Plant-Based Management of Dryland Salinity.

C CSIRO Livestock Industries, Private Bag 5, Wembley, WA 6913, Australia.

D Corresponding author. Email: jim.franklinmcevoy@adelaide.edu

Australian Journal of Experimental Agriculture 47(8) 912-917 https://doi.org/10.1071/EA06149
Submitted: 1 May 2006  Accepted: 9 February 2007   Published: 16 July 2007

Abstract

Merino wethers aged 1.5 years grazed a saltland pasture comprising old man saltbush (Atriplex nummularia) with an inter-row of senesced grasses and medic for 6 weeks in autumn, in a cereal–livestock zone with a Mediterranean-type environment in South Australia. The experimental treatments were a control (old man saltbush, SB), supplementation with 250 g/sheep.day barley straw (SB + S), supplementation with 250 g/sheep.day barley grain (SB + G) and supplementation with 250 g/sheep.day barley straw + 250 g/sheep.day barley grain (SB + S + G). The sheep in SB + G finished the experimental period significantly heavier (53.6 kg, P < 0.001) than SB (51.0 kg), SB + S (50.5 kg) or SB + S + G (51.1 kg) animals. Feeding grain also increased length of wool grown daily by 16% and would have increased the value of the sheep by being able to sell them ‘out of season’ when prices are higher. Sheep supplemented with grain alone had a higher liveweight than those provided with grain and straw, a result that cannot be explained but may be associated with altered grazing behaviour. It appears that, while old man saltbush provides sheep with an acceptable intake of protein and minerals, the addition of a cereal grain supplement improves energy balance and optimises rumen protein capture to improve liveweight and wool growth performance.


Acknowledgements

The authors thank Wolford and Marie Parsons for their tremendous cooperation in running the experimental work on their property.


References


Andrew MH, Noble IR, Lange RT (1976) A non-destructive method for estimating the weight of forage on shrubs. Australian Rangelands Journal 1, 225–231.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Arieli A, Naim E, Benjamin RW, Pasternak D (1989) The effect of feeding saltbush and sodium chloride on energy metabolism in sheep. Animal Production 49, 451–457. open url image1

Atiq-ur-Rehman , Mackintosh JB, Fortune JA, Warren BE (1994) Can the voluntary feed intake of wheat straw in sheep be improved by mixing with saltbush (Atriplex amnicola)? Animal Production in Australia 20, 175–177. open url image1

Australian Dryland Salinity Assessment (2001) ‘National Land and Water Resources Audit.’ (National Land and Water Resources Audit: Canberra)

Barrett-Lennard EG (2002) Restoration of saline land through revegetation. Agricultural Water Management 53, 213–226.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Barrett-Lennard EG, Malcolm CV (1999) Increased concentrations of chloride beneath stands of saltbushes (Atriplex species) suggest substantial use of groundwater. Australian Journal of Experimental Agriculture 39, 949–955.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Barrett-Lennard EG, George RJ, Hamilton G, Norman HC, Masters DG (2005) Multi-disciplinary approaches suggest profitable and sustainable farming systems for valley floors at risk of salinity. Australian Journal of Experimental Agriculture 45, 1415–1424.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Bondi AA (1987) ‘Animal nutrition.’ (John Wiley & Sons: London)

Chapman RE, Wheeler JL (1963) Dyebanding: a technique for fleece growth studies. Australian Journal of Science 26, 53–54. open url image1

Condon RW, Weir HN, Herbert RG, Naylor JL, Meares RC (1994) Old man saltbush for saline soils and high water tales – some case studies. In ‘The 3rd national workshop on productive use of saline land’. pp. 113–118. (Murray-Darling Basin Commission and Salt Action: Canberra)

Hemsley JA, Hogan JP, Weston RH (1975) Effect of high intakes of sodium chloride on the utilization of a protein concentrate by sheep. II. Digestion and absorption of organic matter and electrolytes. Australian Journal of Agricultural Research 26, 715–727.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Hungerford TG (1998) ‘Diseases of livestock.’ (McGraw-Hill Book Company: Sydney)

Knight A, Blott K, Portelli M, Hignett C (2002) Use of tree and shrub belts to control leakage in three dryland cropping environments. Australian Journal of Agricultural Research 53, 571–586.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Lynch JJ, Hinch GN, Adams DB (1992) ‘The behaviour of sheep: biological principles and implications for production.’ (CSIRO Australia and CAB International: East Melbourne)

Manson D (1993) ‘Saltbush – an alternative feed for sheep.’ (Primary Industries South Australia: Murray Bridge, SA)

Masters DG, Norman HC, Dynes RA (2001) Opportunities and limitations for animal production from saline land. Asian-Australian Journal of Animal Science 14, 199–211. open url image1

Masters DG, Norman HC, Barrett-Lennard EG (2005a) Agricultural systems for saline soil: the potential role of livestock. Asian-Australasian Journal of Animal Sciences 18, 296–300. open url image1

Masters DG, Rintoul AJ, Dynes RA, Pearce KL, Norman HC (2005b) Feed intake and production in sheep fed diets high in sodium and potassium. Australian Journal of Agricultural Research 56, 427–434.
| Crossref | GoogleScholarGoogle Scholar | open url image1

McDonald P, Edwards RA, Greenhalgh JFD, Morgan CA (1995) ‘Animal nutrition.’ 5th edn. (Longman Scientific & Technical: Edinburgh Gate, Harlow, UK)

McFarlane DJ, George RJ, Caccetta PA (2004) The extent and potential area of salt-affected land in Western Australia estimated using remote sensing and digital terrain models. In ‘Proceedings of the 1st national salinity engineering conference, Perth, Western Australia’. pp. 55–60. (Institute of Engineers Australia: Canberra)

Norman HC, Dynes RA, Masters DG (2002) Nutritive value of plants growing on saline land. In ‘8th national conference and workshop on the productive use and rehabilitation of saline land, Fremantle, Western Australia’. pp. 59–69. (Promaco Conventions Pty Ltd: Canning Bridge)

Pearce K, Masters DG, Friend C, Rintoul A, Pethick DW (2002) Wool growth and liveweight gain in sheep fed a saltbush and barley ration. Animal Production in Australia 24, 337. open url image1

Peirce AW (1963) Studies on salt tolerance in sheep. V. The tolerance of sheep for mixtures of sodium chloride, sodium carbonate and sodium bicarbonate in the drinking water Australian Journal of Agricultural Research 14, 815–823.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Potter BJ (1961) The renal response of sheep to prolonged ingestion of sodium chloride Australian Journal of Agricultural Research 12, 440–445.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Potter BJ (1963) The effect of saline water on kidney tubular function and electrolyte excretion in sheep. Australian Journal of Agricultural Research 14, 518–528.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Provenza FD, Villalba JJ, Dziba LE, Atwood SB, Banner RE (2003) Linking herbivore experience, varied diets, and plant biochemical diversity. Small Ruminant Research 49, 257–274.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Purser DB (1980) Nutritional value of Mediterranean pastures. In ‘Grazing animals’. (Ed. FHW Morley) pp. 159–180. (Elsevier Scientific Publishing Company: Amsterdam, The Netherlands)

Tothill JC, Hargreaves JNG, Jones RM (1978) ‘BOTANAL: a comprehensive sampling and computing procedure for estimating pasture yield and composition. I. Field sampling.’ (CSIRO Division of Tropical Crops and Pastures: Brisbane)

Warren BE, Casson T (1994) Sheep and saltbush – are they compatible? In ‘Third national workshop on productive use of saline land’. pp. 125–129. (Murray-Darling Basin Commission and Salt Action: Canberra)

Warren BE, Casson T (1996) Saltbushes for forage – where have we been and where are we going. Australian Journal of Soil and Water Conservation 9, 41–44. open url image1

Warren BE, Bunny CJ, Bryant ER (1990) A preliminary examination of the nutritive value of four saltbush (Atriplex) species. Animal Production in Australia 18, 424–427. open url image1

Williams AJ (1991) Wool growth. In ‘Australian sheep and wool handbook’. (Ed. DJ Cottle) pp. 224–242. (Inkata Press: Melbourne)

Wilson AD (1994) Utilisation of halophytes by livestock: an overview. In ‘Third national workshop on productive use of saline land’. pp. 119–124. (Murray-Darling Basin Commission and Salt Action: Canberra)

Yensen N (2000) New horizons in the use of saline resources. Natural Resource Management Special Issue June, 4–8.