Estimating delivery rates of intra-ruminal controlled release devices using faecal excretion curves

dc.contributor	Hendricksen, RE
dc.contributor	Reich, MM
dc.contributor	Roberton, RF
dc.contributor	Gazzola, C
dc.contributor	Hill, RA
dc.date.accessioned	2012-01-25T12:32:25Z
dc.date.available	2012-01-25T12:32:25Z
dc.date.issued	2002
dc.identifier.citation	Proc. Aust. Soc. Anim. Prod. (2002) 24: 310
dc.identifier.uri	http://livestocklibrary.com.au/handle/1234/9131
dc.description.abstract	Intra-ruminal controlled release devices (CRDs) are plastic winged capsules containing an active ingredient which is slowly extruded by a spring-loaded plunger. More recently the technology has been used to administer mineral markers (Parker, 1990), as well as n-alkanes (Dove et al. 1991) to ruminants in order to estimate faecal output.. The CRD delivery rate used in calculations is usually determined by the manufacturer on a batch subsample utilising plunger travel and matrix ingredient concentration following a period suspended in the rumen of test steers. If rumen-fistulated animals are not available then plunger displacement and a delivery rate estimate can only be calculated following slaughter and CRD recovery.
dc.publisher	ASAP
dc.source.uri	http://www.asap.asn.au/livestocklibrary/2002/hendricksen1C.pdf
dc.subject	faecal analysis
dc.subject	delivery rate
dc.title	Estimating delivery rates of intra-ruminal controlled release devices using faecal excretion curves
dc.type	Research
dc.identifier.volume	24
dc.identifier.page	310