Please use this identifier to cite or link to this item:
https://hdl.handle.net/1959.11/29235
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Moss, Amy F | en |
dc.contributor.author | Parkinson, Greg | en |
dc.contributor.author | Crowley, T M | en |
dc.contributor.author | Pesti, Gene M | en |
dc.date.accessioned | 2020-08-17T04:27:17Z | - |
dc.date.available | 2020-08-17T04:27:17Z | - |
dc.date.issued | 2020-07 | - |
dc.identifier.citation | Poultry Science, p. 23-23 | en |
dc.identifier.uri | https://hdl.handle.net/1959.11/29235 | - |
dc.description.abstract | Feed constitutes >65% of live production costs in poultry production; thus there is vast pressure to formulate ‘least-cost’ diets. The aim of commercial enterprises is usually to maximise profits with the inputs available. In this respect, least-cost feed formulation is limited as it does not account for the relationship between input cost and output value. While it was previously necessary due to the complexity of non-linear models, modern computing has made max-profit feed formulation achievable. Importantly, these models improve flexibility and economic sustainability which is particularly of interest during the recent market volatility. Therefore, this study compared diets formulated in traditional least-cost versus max-profit approaches via practical simulations. The layer hen simulation focuses on dietary methionine (Met) levels as it is an expensive dietary constituent and holds important implications for egg size. The response of intake, egg weight, total egg mass and percentage production of cage layers 52-58 weeks of age to 5 true digestible Met levels (0.13, 0.25, 0.37, 0.48, 0.6%) was sourced from Bregendahl et al. (2008) to model the response of layers over the 6 week period. Diets reported were reconstructed using modern prices (4th quarter 2019, $AUD) sourced from industry. The standard least-cost diet formulated to standard nutrient recommendations consisted of 0.48% Met costing $461.26, resulting in an estimated egg mass of 52 g/bird/day and an egg production of 83%. Therefore, a farm of 20,000 hens from 52-58 weeks of age (42 days) may expect to produce a total of 58,100 dozen eggs (on average 700g egg grade) with a sale price of $2.20/doz. Variable and fixed costs were calculated at $93,575 and revenue (egg sales + spend hens) at $128,220 giving a profit of $34,645 for the 6 week least-cost simulation. Calculations were repeated for all Met levels reported in Bregendahl et al. (2008) and the highest dietary Met level of 0.6% generated the greatest profit of $34,830. However, the maximal profit achievable is defined as the point at which more Met inclusion won’t generate any extra profit, or the point at which marginal costs equal marginal revenue. As the reference data did not cover this range, the response of layers to Met was modelled and the point at which marginal costs equal marginal revenues was estimated at 0.95% dietary Met. Thus, the most economic nutrient level may not correspond with the biological nutrient recommendation, and the greater flexibility and revenue provided by max-profit formulations may aid the poultry industry particularly during challenging economic periods. | en |
dc.language | en | en |
dc.publisher | Poultry Science Association (PSA) | en |
dc.relation.ispartof | Poultry Science | en |
dc.title | Possibilities for formulating layer diets beyond the traditional least-cost model | en |
dc.type | Conference Publication | en |
dc.relation.conference | PSA 2020: Poultry Science Association 109th Annual Meeting | en |
dcterms.accessRights | Bronze | en |
local.contributor.firstname | Amy F | en |
local.contributor.firstname | Greg | en |
local.contributor.firstname | T M | en |
local.contributor.firstname | Gene M | en |
local.subject.for2008 | 070204 Animal Nutrition | en |
local.subject.seo2008 | 830503 Live Animals | en |
local.profile.school | School of Environmental and Rural Science | en |
local.profile.school | Poultry Hub Australia | en |
local.profile.email | amoss22@une.edu.au | en |
local.profile.email | tcrowle5@une.edu.au | en |
local.output.category | E3 | en |
local.record.place | au | en |
local.record.institution | University of New England | en |
local.date.conference | 20th - 22nd July, 2020 | en |
local.conference.place | Online Event | en |
local.publisher.place | United Kingdom | en |
local.format.startpage | 23 | en |
local.format.endpage | 23 | en |
local.url.open | https://poultryscience.org/files/galleries/2020-PSA-Abstracts.pdf | en |
local.peerreviewed | Yes | en |
local.access.fulltext | Yes | en |
local.contributor.lastname | Moss | en |
local.contributor.lastname | Parkinson | en |
local.contributor.lastname | Crowley | en |
local.contributor.lastname | Pesti | en |
dc.identifier.staff | une-id:amoss22 | en |
dc.identifier.staff | une-id:tcrowle5 | 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.identifier.unepublicationid | une:1959.11/29235 | en |
dc.identifier.academiclevel | Academic | en |
dc.identifier.academiclevel | Academic | en |
dc.identifier.academiclevel | Academic | en |
dc.identifier.academiclevel | Academic | en |
local.title.maintitle | Possibilities for formulating layer diets beyond the traditional least-cost model | en |
local.output.categorydescription | E3 Extract of Scholarly Conference Publication | en |
local.relation.url | https://poultryscience.org/PSA-Annual-Meeting | en |
local.relation.url | https://poultryscience.org/Meetings-Past-Meetings | en |
local.conference.details | PSA 2020: Poultry Science Association 109th Annual Meeting, Online Event, 20th - 22nd July, 2020 | en |
local.search.author | Moss, Amy F | en |
local.search.author | Parkinson, Greg | en |
local.search.author | Crowley, T M | en |
local.search.author | Pesti, Gene M | en |
local.uneassociation | Yes | en |
dc.date.presented | 2020-07 | - |
local.atsiresearch | No | en |
local.conference.venue | Online Event | en |
local.sensitive.cultural | No | en |
local.year.published | 2020 | - |
local.year.presented | 2020 | en |
local.fileurl.closedpublished | https://rune.une.edu.au/web/retrieve/c4ad954a-4080-4b2e-9a43-d9be62ded99b | en |
local.subject.for2020 | 300303 Animal nutrition | en |
local.subject.seo2020 | 100699 Primary products from animals not elsewhere classified | en |
local.date.start | 2020-07-20 | - |
local.date.end | 2020-07-22 | - |
local.profile.affiliationtype | Unknown | en |
local.profile.affiliationtype | Unknown | en |
local.profile.affiliationtype | Unknown | en |
local.profile.affiliationtype | Unknown | en |
Appears in Collections: | Conference Publication School of Environmental and Rural Science |
Files in This Item:
File | Description | Size | Format |
---|
Page view(s)
2,456
checked on Aug 11, 2024
Download(s)
12
checked on Aug 11, 2024
Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.