Influence of age and dietary cellulose levels on ileal endogenous energy losses in broiler chickens

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dc.citation.issue7
dc.citation.volume101
dc.contributor.authorKhalil MM
dc.contributor.authorAbdollahi MR
dc.contributor.authorZaefarian F
dc.contributor.authorChrystal PV
dc.contributor.authorRavindran V
dc.coverage.spatialEngland
dc.date.accessioned2023-12-13T21:56:59Z
dc.date.accessioned2024-07-25T06:51:14Z
dc.date.available2022-05-06
dc.date.available2023-12-13T21:56:59Z
dc.date.available2024-07-25T06:51:14Z
dc.date.issued2022-07
dc.description.abstractTwo experiments were conducted to investigate the influence of age and dietary cellulose levels on the ileal endogenous energy losses (IEEL) in broiler chickens. In experiment 1, a glucose-based purified diet was used to determine the IEEL. Titanium dioxide (5.0 g/kg) was added to the diet as an indigestible marker. Six groups of broiler chickens aged 1 to 7, 8 to 14, 15 to 21, 22 to 28, 29 to 35 or 36 to 42 d posthatch, were utilized. With the exception of 1-7 d, the birds were fed a starter (d 1–21) and/or a finisher (d 22–35) diet before the experimental diet was introduced. The diet was randomly allocated to 6 replicate cages, and the number of birds per cage was 12 (d 1–7), 10 (d 8–14), and 8 (d 15–42). The ileal digesta were collected at the last day of each week (d 7, 14, 21, 28, 35, and 42). Bird age had no effect (P > 0.05) on the IEEL estimates. The IEEL estimates ranged from 263 to 316 kcal/kg dry matter intake (DMI) during weeks 1 to 6. In Experiment 2, 4 glucose-based purified diets were developed using 0, 25, 50 and 75 g/kg cellulose. Titanium dioxide (5.0 g/kg) was added to the diets as an indigestible marker. The diets were randomly allocated to 6 replicate cages (8 birds per cage) and fed from 18 to 21 d posthatch and, ileal digesta were collected on d 21. The IEEL estimates of broiler chickens at 21 d of age showed a quadratic response (P < 0.05) to increasing cellulose contents. The lowest IEEL (88 kcal/kg DMI) was recorded for the diet without cellulose and the highest IEEL (430 kcal/kg DMI) was observed for the diet with 75 g/kg cellulose. Overall, the present findings confirmed that the IEEL in broiler chickens can be quantified by feeding a glucose-based purified diet. Broiler age had no influence on the IEEL estimates. The IEEL increased with increasing dietary cellulose contents and the IEEL determined using a purified diet without cellulose represents a better estimate of IEEL.
dc.format.pagination101948-
dc.identifier.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/35679675
dc.identifier.citationKhalil MM, Abdollahi MR, Zaefarian F, Chrystal PV, Ravindran V. (2022). Influence of age and dietary cellulose levels on ileal endogenous energy losses in broiler chickens.. Poult Sci. 101. 7. (pp. 101948-).
dc.identifier.doi10.1016/j.psj.2022.101948
dc.identifier.eissn1525-3171
dc.identifier.elements-typejournal-article
dc.identifier.issn0032-5791
dc.identifier.piiS0032-5791(22)00240-1
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/71017
dc.languageeng
dc.publisherElsevier Inc. on behalf of Poultry Science Association Inc.
dc.relation.isPartOfPoult Sci
dc.rights(c) 2022 The Author/s
dc.rightsCC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectage
dc.subjectbroiler
dc.subjectcellulose
dc.subjectileal endogenous energy loss
dc.subjectAnimal Feed
dc.subjectAnimal Nutritional Physiological Phenomena
dc.subjectAnimals
dc.subjectCellulose
dc.subjectChickens
dc.subjectDiet
dc.subjectDigestion
dc.subjectGlucose
dc.subjectIleum
dc.titleInfluence of age and dietary cellulose levels on ileal endogenous energy losses in broiler chickens
dc.typeJournal article
pubs.elements-id453912
pubs.organisational-groupOther
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