Predicting the Feed Intake of Artificially Reared Pre-Weaned Lambs from Faecal and Dietary Chemical Composition

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dc.citation.issue2
dc.citation.volume2
dc.contributor.authorAnim-Jnr AS
dc.contributor.authorMorel PCH
dc.contributor.authorKenyon PR
dc.contributor.authorBlair HT
dc.contributor.editorLeury BJ
dc.date.accessioned2024-06-26T02:43:34Z
dc.date.available2024-06-26T02:43:34Z
dc.date.issued2022-06
dc.description.abstractPredicting feed intake in suckling lambs consuming both milk and pasture can be challenging, and thus intake values are often derived from solely milk or solid feed consumption. The present study investigated if dry matter (DM), organic matter (OM), and metabolisable energy (ME) intakes of lambs given a combination of milk and pellets under controlled conditions could be predicted with enough precision using dietary and faecal chemical composition. A total of 34 pre-weaned lambs bottle-fed milk replacer with or without access to pellets and kept in metabolic cages for four days were used. To develop the prediction equations, 54 faecal samples with detailed information on their chemical compositions, and the feed consumed by the lambs, were used. Pellet DMI was predicted from neutral detergent fibre concentration in faeces and pellets, pellets %DM, and live weight (LW) of lambs. Milk DMI was predicted from faecal Nitrogen concentration and LW. Milk and pellet DMI and their ME content were combined to predict DMI/d and ME intake/d. The equations developed were validated against 40 spot faecal samples randomly selected from the lambs. DM, OM, and ME intakes were predicted with high accuracy and precision. The results showed that the developed equations can be used with enough accuracy to predict ME, OM, and DM intakes in pre-weaned lambs ingesting milk and pellets concurrently, thus the results revealed that the established equations may be used to predict ME, OM, and DM intakes in pre-weaned lambs drinking milk and pellets at the same time, allowing feeding regimens for young lambs to be developed.
dc.description.confidentialfalse
dc.edition.editionJune 2022
dc.format.pagination244-254
dc.identifier.citationAnim-Jnr AS, Morel PCH, Kenyon PR, Blair HT. (2022). Predicting the Feed Intake of Artificially Reared Pre-Weaned Lambs from Faecal and Dietary Chemical Composition. Ruminants. 2. 2. (pp. 244-254).
dc.identifier.doi10.3390/ruminants2020016
dc.identifier.eissn2673-933X
dc.identifier.elements-typejournal-article
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/70018
dc.languageEnglish
dc.publisherMDPI (Basel, Switzerland)
dc.publisher.urihttps://www.mdpi.com/2673-933X/2/2/16
dc.relation.isPartOfRuminants
dc.rights(c) 2022 The Author/s
dc.rightsCC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectlamb
dc.subjectmilk
dc.subjectpellet
dc.subjectfeed intake
dc.subjectdiet composition
dc.subjectfaeces composition
dc.titlePredicting the Feed Intake of Artificially Reared Pre-Weaned Lambs from Faecal and Dietary Chemical Composition
dc.typeJournal article
pubs.elements-id488578
pubs.organisational-groupOther
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