High steam-conditioning temperature during the pelleting process impairs growth performance and nutrient utilization in broiler starters fed barley-based diets, regardless of carbohydrase supplementation

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dc.citation.issue8
dc.citation.volume100
dc.contributor.authorPerera WNU
dc.contributor.authorAbdollahi MR
dc.contributor.authorZaefarian F
dc.contributor.authorWester TJ
dc.contributor.authorRavindran V
dc.coverage.spatialEngland
dc.date.accessioned2023-12-13T23:54:03Z
dc.date.accessioned2024-07-25T06:46:15Z
dc.date.available2021-03-27
dc.date.available2023-12-13T23:54:03Z
dc.date.available2024-07-25T06:46:15Z
dc.date.issued2021-08
dc.description.abstractThe influence of supplemental carbohydrase (Carb) and conditioning temperature (CT) on growth performance, nutrient utilization and intestinal morphometry of broilers (d 1–21) fed barley-based diets was examined in a 2 × 3 factorial arrangement, evaluating 2 levels of Carb (0 and 150 g/tonne of feed) and three CT (60, 74, and 88°C). A total of 288, 1-day-old male broilers (8 birds/cage; 6 cages/treatment) were used. The activities of endo-1,4-β- glucanase, endo-1,3 (4)-β-glucanase and endo-1,4-β-xylanase in the Carb were 800 BGU/g, 700 BGU/g and 2,700 XU/g, respectively. On d 21, ileal digesta was collected for the determination of nutrient digestibility. There was no significant interaction between Carb and CT for any tested parameter. Supplemental Carb, regardless of CT, increased weight gain (WG; P < 0.05) and reduced feed per gain (F/G; P < 0.001) by 30 g/bird and 6.5 points, respectively. Increasing CT to 88°C reduced (P < 0.05) WG, but increased (P < 0.05) F/G compared to the diets conditioned at 60° and 74°C. Regardless of CT, Carb enhanced (P < 0.05) the digestibility of starch and AMEn by 1.15% and 32 kcal/kg, respectively. Compared to the diets conditioned at 60° and 74°C, CT at 88°C reduced (P < 0.05) digestibility of dry matter, nitrogen, phosphorus, gross energy, and AMEn. Birds fed diets conditioned at 88°C showed lower (P < 0.05) starch digestibility compared to those fed diets conditioned at 60°C. Conditioning at 88°C increased (P < 0.05) jejunal digesta viscosity by 10.2% compared to diets conditioned at 60° and 74°C. Overall, Carb supplementation improved WG, F/G, starch digestibility and AMEn in broilers fed barley-based diets, irrespective of CT applied. Conditioning barley-based diets at 88°C impaired the ability of birds to utilize nitrogen, starch, phosphorus and energy, and consequently deteriorated WG and F/G. The lack of significant interactions between Carb and CT indicated that negative impacts caused by high CT on bird performance and nutrient utilization occurred regardless of Carb enzyme supplementation. Supplemental Carb per se could not remedy the adverse effects of high CT.
dc.format.pagination101166-
dc.identifier.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/34214745
dc.identifier.citationPerera WNU, Abdollahi MR, Zaefarian F, Wester TJ, Ravindran V. (2021). High steam-conditioning temperature during the pelleting process impairs growth performance and nutrient utilization in broiler starters fed barley-based diets, regardless of carbohydrase supplementation.. Poult Sci. 100. 8. (pp. 101166-).
dc.identifier.doi10.1016/j.psj.2021.101166
dc.identifier.eissn1525-3171
dc.identifier.elements-typejournal-article
dc.identifier.issn0032-5791
dc.identifier.numberARTN 101166
dc.identifier.piiS0032-5791(21)00200-5
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/70836
dc.languageeng
dc.publisherElsevier Inc. on behalf of Poultry Science Association Inc.
dc.relation.isPartOfPoult Sci
dc.rights(c) 2021 The Author/s
dc.rightsCC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectbarley
dc.subjectbroiler
dc.subjectcarbohydrase
dc.subjectconditioning temperature
dc.subjectenzyme
dc.subjectAnimal Feed
dc.subjectAnimal Nutritional Physiological Phenomena
dc.subjectAnimals
dc.subjectChickens
dc.subjectDiet
dc.subjectDietary Supplements
dc.subjectDigestion
dc.subjectGlycoside Hydrolases
dc.subjectHordeum
dc.subjectMale
dc.subjectNutrients
dc.subjectSteam
dc.subjectTemperature
dc.titleHigh steam-conditioning temperature during the pelleting process impairs growth performance and nutrient utilization in broiler starters fed barley-based diets, regardless of carbohydrase supplementation
dc.typeJournal article
pubs.elements-id447138
pubs.organisational-groupOther
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