Influence of barley inclusion method and protease supplementation on growth performance, nutrient utilisation, and gastrointestinal tract development in broiler starters

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dc.citation.issue1
dc.citation.volume8
dc.contributor.authorTari LM
dc.contributor.authorPerera WNU
dc.contributor.authorZaefarian F
dc.contributor.authorAbdollahi MR
dc.contributor.authorCowieson AJ
dc.contributor.authorRavindran V
dc.coverage.spatialChina
dc.date.accessioned2023-12-13T00:25:47Z
dc.date.accessioned2024-07-25T06:35:12Z
dc.date.available2021-09-23
dc.date.available2023-12-13T00:25:47Z
dc.date.available2024-07-25T06:35:12Z
dc.date.issued2022-03
dc.description.abstractThe influence of the method of barley inclusion (fine, coarse and whole barley) in a wheat-based diet and protease supplementation (0 and 0.20 g/kg) on growth performance, nutrient utilisation and gastrointestinal tract development of broilers (d 1 to 21) was evaluated in a 3 × 2 factorial arrangement. Whole barley (WB) grains were ground in a hammer mill to pass through the screen sizes of 2.5 and 8.0 mm to achieve fine (FB) and coarse (CB) barley particle sizes, respectively. A total of 288, one-day-old male broilers were allotted to 36 cages (6 cages/treatment; 8 birds/cage). There was no significant (P > 0.05) interaction between barley inclusion method and protease for any growth performance or nutrient utilisation parameters. Birds fed diets containing CB and WB showed higher (P < 0.05) weight gain, and digestibility of dry matter, nitrogen, calcium, gross energy, and ileal digestible energy compared to those fed FB diets. Compared to the birds fed FB diets, feed per gain was lower (P < 0.05) in birds fed diets made of WB. Fat digestibility of the birds fed CB was higher (P < 0.05) than those fed FB and WB birds. Compared to FB and CB diets, inclusion of WB resulted in heavier (P < 0.05) gizzards but reduced (P < 0.05) gizzard pH. Supplemental protease, however, had no effects (P > 0.05) on growth performance and nutrient utilisation, most likely due to the well balanced digestible amino acids and high inherent digestibility of protein in the basal diet, and/or the presence of exogenous carbohydrase and phytase. In conclusion, the present results showed that the inclusion of coarsely ground and whole barley in a wheat-based diet can enhance nutrient and energy utilisation and is beneficial to the growth performance of young broilers.
dc.format.pagination61-70
dc.identifier.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/34977376
dc.identifier.citationTari LM, Perera WNU, Zaefarian F, Abdollahi MR, Cowieson AJ, Ravindran V. (2022). Influence of barley inclusion method and protease supplementation on growth performance, nutrient utilisation, and gastrointestinal tract development in broiler starters.. Anim Nutr. 8. 1. (pp. 61-70).
dc.identifier.doi10.1016/j.aninu.2021.06.008
dc.identifier.eissn2405-6383
dc.identifier.elements-typejournal-article
dc.identifier.issn2405-6545
dc.identifier.piiS2405-6545(21)00152-9
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/70484
dc.languageeng
dc.publisherElsevier B.V. on behalf of KeAi Communications Co. Ltd
dc.relation.isPartOfAnim Nutr
dc.rightsCC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectBarley
dc.subjectBroiler
dc.subjectParticle size
dc.subjectProtease
dc.subjectWhole grain
dc.titleInfluence of barley inclusion method and protease supplementation on growth performance, nutrient utilisation, and gastrointestinal tract development in broiler starters
dc.typeJournal article
pubs.elements-id450227
pubs.organisational-groupOther
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