An alternative approach for sustainable sheep meat production: implications for food security

Journal of Animal Science and Biotechnology
E N PonnampalamJ L Jacobs

Abstract

A pelleted diet containing camelina hay (CAMH) or camelina meal (CAMM) as a supplement along with a control pellet (CONT) diet formulated with commonly available feeds during summer was used to investigate an alternative pathway for sustainable meat production. Sustainable meat production was based on a simple estimation of income from meat produced versus feed costs if animals were fed for an extended period over summer compared to early slaughter at the beginning of summer. Eighty maternal composite wether lambs (Composite) based on Coopworth genetics and 80 pure Merino wether yearlings were divided into 10 groups within breed (n = 8) using stratified randomisation based on liveweights. Following 1 week of adaptation to experimental diets, animals were fed experimental diets for up to10 weeks. Animals were slaughtered after either 8, 9 or 10 weeks of full feeding when the average liveweight of diet/genetic combination reached a weight appropriate for either 'heavy lamb' or 'heavy hogget' production, which occurred between 8 and 10 weeks of full feeding. There was no diet × breed interactions except for dressing percentage (DP), where Composite lambs fed the CAMH diet had the greatest DP (48.1 ± 0.35) and the Merino yearlings ...Continue Reading

References

Oct 1, 2004·Biological Research·Artemis P Simopoulos
Nov 29, 2011·Domestic Animal Endocrinology·E N PonnampalamF R Dunshea
Jan 27, 2012·The Journal of Nutrition·Eric A DeckerRichard S Wilkes
Jun 1, 2014·Grass and Forage Science : the Journal of the British Grassland Society·A LüscherJ L Peyraud
Nov 5, 2015·PloS One·Benjamin Leon BodirskyHermann Lotze-Campen

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Methods Mentioned

BETA
infrared spectrometry
X-ray

Software Mentioned

GenStat
WinISI ( Foss )

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