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dc.contributor.authorLandau, S. Y.
dc.contributor.authorPerevolotsky, A.
dc.contributor.authorKababya, D.
dc.contributor.authorSilanikove, N.
dc.contributor.authorNitzan, R.
dc.contributor.authorBaram, H.
dc.contributor.authorProvenza, F. D.
dc.date.accessioned2020-09-18T05:05:23Z
dc.date.available2020-09-18T05:05:23Z
dc.date.issued2002-11-01
dc.identifier.citationLandau, S. Y., Perevolotsky, A., Kababya, D., Silanikove, N., Nitzan, R., Baram, H., & Provenza, F. D. (2002). Polyethylene glycol affects goats' feeding behavior in a tannin-rich environment. Journal of Range Management, 55(6), 598-603.
dc.identifier.issn0022-409X
dc.identifier.doi10.2307/4004003
dc.identifier.doi10.2458/azu_jrm_v55i6_landau
dc.identifier.urihttp://hdl.handle.net/10150/643704
dc.description.abstractHigh concentrations of condensed tannins in browse impair brush clearing by goats. We studied the effect of polyethylene glycol (PEG, MW 4000), a polymer that binds condensed tannins, on the feeding behavior of Damascus goats (Capra hircas) on a range dominated by tannin-rich lentisk (Pistacia lentiscus L.). This was done with or without a nutritious alternative to browse (alfalfa hay) available at pasture. In phase 1, no hay was provided to goats; in phase 2, hay was distributed daily in the field. In both phases, 6 goats had free access to PEG while at pasture, while 6 goats that grazed separately on another paddock did not. All goats received each night an allowance of concentrate (400 g day-1 of 40% ground corn grain, 40% ground barley, 17% soybean meal and 3% of a mineral-vitamin premix, and contained as fed 16% crude protein (CP) and 2.66 Mcal kg-1 of Metabolizable Energy). The 2 groups of goats alternated daily between paddocks. Goats supplemented with PEG spent more time browsing lentisk than goats in the control group (73 and 41%, respectively, P < 0.0001). Goats in the control group spent more time foraging on dry grasses than their PEG-fed counterparts (28 and 12%, respectively, P < 0.0001). Goats from the PEG group gained body weight at a higher rate than controls. The daily intake of PEG was 450 g, with an intake rate of 1.2 g sec-1. Supplemental alfalfa hay substituted partly for dry grasses in goats' diets, but did not modify the percent of time goats in either treatment spent browsing lentisk. Our data suggest that PEG has the potential to increase intake of tannin-rich species, even where alternative fodder of better nutritional quality is present. However, self-feeding of PEG may not be the best way to provide PEG because goats may ingest more PEG than needed to annul the aversive effects of tannins on food intake.
dc.language.isoen
dc.publisherSociety for Range Management
dc.relation.urlhttps://rangelands.org/
dc.rightsCopyright © Society for Range Management.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectEphedra
dc.subjectdosage
dc.subjectphysical activity
dc.subjectfeed additives
dc.subjectconcentrates
dc.subjectpolyethylene glycol
dc.subjectCeratonia siliqua
dc.subjectPistacia lentiscus
dc.subjectproanthocyanidins
dc.subjectself administration
dc.subjectephedra foemina
dc.subjectalfalfa
dc.subjectalfalfa hay
dc.subjectIsrael
dc.subjectbrowse plants
dc.subjectliveweight gain
dc.subjectbody weight
dc.subjecttannins
dc.subjecthay
dc.subjectfeed supplements
dc.subjectgoats
dc.subjectbrowsing
dc.subjectfeed intake
dc.subjectfeeding preferences
dc.subjectMediterranean browse
dc.subjectself-regulation
dc.subjectnutrition
dc.titlePolyethylene glycol affects goats' feeding behavior in a tannin-rich environment
dc.typetext
dc.typeArticle
dc.identifier.journalJournal of Range Management
dc.description.collectioninformationThe Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform August 2020
dc.source.volume55
dc.source.issue6
dc.source.beginpage598-603
refterms.dateFOA2020-09-18T05:05:23Z


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