| dc.creator | Martínez,María Eugenia | |
| dc.creator | Benavente,Aldo | |
| dc.creator | Morales,Rodrigo | |
| dc.date | 2017-12-01 | |
| dc.date.accessioned | 2019-05-17T13:12:05Z | |
| dc.date.available | 2019-05-17T13:12:05Z | |
| dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-16202017000300239 | |
| dc.identifier.uri | https://revistaschilenas.uchile.cl/handle/2250/98278 | |
| dc.description | Abstract The objective of this study was to evaluate the effect of diet (grazing vs. pasture silage with concentrate) and changes in diet on n-alkane concentrations in cattle feces. The experiment lasted 35 d (15 d of adaptation and 20 d of sampling). Thirty Holstein-Friesian steers were divided into three groups of ten, and each group was randomly allocated to one of the following three treatments: GZ, diet consisting of 100% pasture; SC, diet consisting of pasture silage: concentrate in a 60:40 ratio; and MX, diet consisting of a gradual decrease in pasture and a gradual increase in SC. Fecal samples were taken daily from every animal, and their n-alkane content was analyzed using gas chromatography. The data obtained in this study showed detectable changes in n-alkane concentrations in steer feces. The changes were noticeable within two to three d after a change in diet, whereas concentrations of n-alkanes remained stable in the feces of animals that did not experience any change in diet. These results can be used as the basis for developing a tool that can determine the type of feed bovines received prior to slaughter. | |
| dc.format | text/html | |
| dc.language | en | |
| dc.publisher | Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal | |
| dc.relation | 10.7764/rcia.v44i3.1741 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.source | Ciencia e investigación agraria v.44 n.3 2017 | |
| dc.subject | Authentication | |
| dc.subject | beef | |
| dc.subject | feedlot | |
| dc.subject | grazing | |
| dc.subject | traceability | |
| dc.title | Potential of n-alkanes as biomarkers in grass-feeding steers | |
