Why are lamb growth rates on lucerne not as high as expected?

Research output: Book chapter/Published conference paperConference paper

Abstract

• Lucerne is a valuable forage for finishing lambs in late spring and summer, but growth rates of lambs grazing lucerne may be lower than expected, and higher growth rates can be achieved on other forages despite similar apparent nutritive values
• Lucerne is a natrophobe as it has low forage sodium levels
• A recent survey in south-eastern Australia demonstrated most dryland lucerne samples had sodium concentrations below livestock requirements
• Supplementation with salt may increase lamb liveweight gain when grazing lucerne
• Supplementation with barley grain does not appear to increase liveweight gain in lambs but may result in substitution of barley for lucerne.
Original languageEnglish
Title of host publicationGraham Centre Livestock Forum 2019 Proceedings
Publication statusPublished - 26 Jul 2019

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alfalfa
forage
barley
grazing
sodium
nutritive value
livestock
substitution
salt
summer

Cite this

McGrath, S. (2019). Why are lamb growth rates on lucerne not as high as expected? In Graham Centre Livestock Forum 2019 Proceedings
McGrath, Shawn. / Why are lamb growth rates on lucerne not as high as expected?. Graham Centre Livestock Forum 2019 Proceedings. 2019.
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abstract = "• Lucerne is a valuable forage for finishing lambs in late spring and summer, but growth rates of lambs grazing lucerne may be lower than expected, and higher growth rates can be achieved on other forages despite similar apparent nutritive values • Lucerne is a natrophobe as it has low forage sodium levels• A recent survey in south-eastern Australia demonstrated most dryland lucerne samples had sodium concentrations below livestock requirements• Supplementation with salt may increase lamb liveweight gain when grazing lucerne• Supplementation with barley grain does not appear to increase liveweight gain in lambs but may result in substitution of barley for lucerne.",
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McGrath, S 2019, Why are lamb growth rates on lucerne not as high as expected? in Graham Centre Livestock Forum 2019 Proceedings.

Why are lamb growth rates on lucerne not as high as expected? / McGrath, Shawn.

Graham Centre Livestock Forum 2019 Proceedings. 2019.

Research output: Book chapter/Published conference paperConference paper

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AB - • Lucerne is a valuable forage for finishing lambs in late spring and summer, but growth rates of lambs grazing lucerne may be lower than expected, and higher growth rates can be achieved on other forages despite similar apparent nutritive values • Lucerne is a natrophobe as it has low forage sodium levels• A recent survey in south-eastern Australia demonstrated most dryland lucerne samples had sodium concentrations below livestock requirements• Supplementation with salt may increase lamb liveweight gain when grazing lucerne• Supplementation with barley grain does not appear to increase liveweight gain in lambs but may result in substitution of barley for lucerne.

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McGrath S. Why are lamb growth rates on lucerne not as high as expected? In Graham Centre Livestock Forum 2019 Proceedings. 2019