Please use this identifier to cite or link to this item:
https://hdl.handle.net/1959.11/29211
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Chrystal, Peter V | en |
dc.contributor.author | Moss, Amy F | en |
dc.contributor.author | Yin, Dafei | en |
dc.contributor.author | Khoddami, Ali | en |
dc.contributor.author | Naranjo, Victor D | en |
dc.contributor.author | Selle, Peter H | en |
dc.contributor.author | Liu, Sonia Y | en |
dc.date.accessioned | 2020-08-07T05:22:04Z | - |
dc.date.available | 2020-08-07T05:22:04Z | - |
dc.date.issued | 2020-03 | - |
dc.identifier.citation | Animal Feed Science and Technology, v.261, p. 1-14 | en |
dc.identifier.isbn | 03778401 | - |
dc.identifier.issn | 1873-2216 | en |
dc.identifier.issn | 0377-8401 | en |
dc.identifier.uri | https://hdl.handle.net/1959.11/29211 | - |
dc.description.abstract | Maize-based diets were formulated to contain 208, 193, 179 and 165 g/kg crude protein (CP) were prepared and the last diet was supplemented with 4.33 g/kg glycine equivalents and 1.10 g/ kg threonine, individually and in combination, to provide seven dietary treatments. Each dietary treatment was offered to eight replicate cages (6 birds per cage) of off-sex, male Ross 308 chickens from 7 to 35 days post-hatch. The transition from 208 to 165 g/kg CP diets numerically compromised weight gain and feed conversion ratios (FCR) by 5.41% and 3.44%, respectively, and linearly increased relative fat-pad weights from 7.62 to 13.31 g/kg. The same transition linearly increased ileal starch:protein disappearance rate ratios from 2.01 to 3.23 (r=-0.823; P<0.001) which were linearly related with relative fat-pad weights and quadratically related with FCR to significant extents across all seven dietary treatments. However, tandem inclusions of glycine equivalents and threonine in the 165 g/kg CP diet significantly decreased disappearance rate ratios from 3.23 to 2.64; moreover, this tandem inclusion increased weight gain from 1994 to 2150 g/bird, decreased relative fat-pad weights from 13.31 to 11.65 g/kg and numerically improved FCR from 1.562 to 1.520. Instructively, birds offered the 165 g/kg CP diet supplemented with glycine equivalents and threonine performed comparably to their 208 g/kg CP diet counterparts with numerical differences of 1.99% more weight gain, 3.03% higher feed intake and a 0.66% higher FCR. That tandem inclusions of glycine equivalents and threonine in the 165 g/kg CP diet condensed ileal starch:protein disappearance rate ratios diet largely stemmed from a 6.18% (0.842 versus 0.793; P<0.005) increase in ileal protein (N) digestibility coefficients and an increase of 10.1% (21.39 versus 19.42 g/bird/day; P<0.005) in ileal protein (N) disappearance rates. It is then relevant that the tandem inclusion increased mean apparent ileal amino acid digestibility coefficients by 7.99% (0.838 versus 0.776; P<0.01) where increases in threonine, glycine and serine digestibilities were pronounced. The possible mechanisms whereby tandem inclusions of glycine equivalents and threonine in a reduced-CP diet increased ileal amino acid digestibilities, and ultimately condensed starch:protein disappearance rate ratios, are discussed and may stem from the up-regulation of relevant amino acid transport systems with over-lapping specificities. | en |
dc.language | en | en |
dc.publisher | Elsevier BV | en |
dc.relation.ispartof | Animal Feed Science and Technology | en |
dc.title | Glycine equivalent and threonine inclusions in reduced-crude protein, maize-based diets impact on growth performance, fat deposition, starch-protein digestive dynamics and amino acid metabolism in broiler chickens | en |
dc.type | Journal Article | en |
dc.identifier.doi | 10.1016/j.anifeedsci.2019.114387 | en |
local.contributor.firstname | Peter V | en |
local.contributor.firstname | Amy F | en |
local.contributor.firstname | Dafei | en |
local.contributor.firstname | Ali | en |
local.contributor.firstname | Victor D | en |
local.contributor.firstname | Peter H | en |
local.contributor.firstname | Sonia Y | en |
local.subject.for2008 | 070204 Animal Nutrition | en |
local.subject.seo2008 | 830503 Live Animals | en |
local.profile.school | Environmental and Rural Science | en |
local.profile.email | amoss22@une.edu.au | en |
local.output.category | C1 | en |
local.record.place | au | en |
local.record.institution | University of New England | en |
local.publisher.place | Netherlands | en |
local.identifier.runningnumber | 114387 | en |
local.format.startpage | 1 | en |
local.format.endpage | 14 | en |
local.identifier.scopusid | 85077655322 | en |
local.peerreviewed | Yes | en |
local.identifier.volume | 261 | en |
local.contributor.lastname | Chrystal | en |
local.contributor.lastname | Moss | en |
local.contributor.lastname | Yin | en |
local.contributor.lastname | Khoddami | en |
local.contributor.lastname | Naranjo | en |
local.contributor.lastname | Selle | en |
local.contributor.lastname | Liu | en |
dc.identifier.staff | une-id:amoss22 | en |
local.profile.orcid | 0000-0002-8647-8448 | en |
local.profile.role | author | en |
local.profile.role | author | en |
local.profile.role | author | en |
local.profile.role | author | en |
local.profile.role | author | en |
local.profile.role | author | en |
local.profile.role | author | en |
local.identifier.unepublicationid | une:1959.11/29211 | en |
local.date.onlineversion | 2020-01-02 | - |
dc.identifier.academiclevel | Academic | en |
dc.identifier.academiclevel | Academic | en |
dc.identifier.academiclevel | Academic | en |
dc.identifier.academiclevel | Academic | en |
dc.identifier.academiclevel | Academic | en |
dc.identifier.academiclevel | Academic | en |
dc.identifier.academiclevel | Academic | en |
local.title.maintitle | Glycine equivalent and threonine inclusions in reduced-crude protein, maize-based diets impact on growth performance, fat deposition, starch-protein digestive dynamics and amino acid metabolism in broiler chickens | en |
local.output.categorydescription | C1 Refereed Article in a Scholarly Journal | en |
local.search.author | Chrystal, Peter V | en |
local.search.author | Moss, Amy F | en |
local.search.author | Yin, Dafei | en |
local.search.author | Khoddami, Ali | en |
local.search.author | Naranjo, Victor D | en |
local.search.author | Selle, Peter H | en |
local.search.author | Liu, Sonia Y | en |
local.uneassociation | Yes | en |
local.atsiresearch | No | en |
local.sensitive.cultural | No | en |
local.identifier.wosid | 000522386900005 | en |
local.year.available | 2020 | en |
local.year.published | 2020 | en |
local.fileurl.closedpublished | https://rune.une.edu.au/web/retrieve/0476b8e5-2a88-4fa4-af69-f7e5769e1cfd | en |
local.subject.for2020 | 300303 Animal nutrition | en |
local.subject.seo2020 | 100699 Primary products from animals not elsewhere classified | en |
Appears in Collections: | Journal Article School of Environmental and Rural Science |
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