Matches in SemOpenAlex for { <https://semopenalex.org/work/W2029382675> ?p ?o ?g. }
Showing items 1 to 51 of
51
with 100 items per page.
- W2029382675 endingPage "145" @default.
- W2029382675 startingPage "135" @default.
- W2029382675 abstract "Abstract A computer model was used to investigate the costs and returns from selecting pigs on growth rate and backfat thickness. The cases considered were (1) a closed herd with all parents selected from within the herd; and (2) a base herd where only females were homebred. In a closed herd, the cumulative discounted benefits over 15 years from a single cycle of selection exceeded costs for a large number of breeding strategies. The most profitable age structure was to use boars for 6 months and sows for two litters, but profits were reduced by only 5% when sows were kept for five litters, assuming a discount rate of 20%. The internal rate of return of a typical gilt selection program in an open herd is about 33% p.a. Using a discount rate of 20% p.a., the value of this gilt selection program is equivalent to about 16% of the selection response possible in a closed herd, and 17% of the total returns possible in the open herd when boars are obtained from a nucleus herd. The effects of selecting a proportion of the total boar requirements of the open herd from within the open herd itself, changes in the parental age structure in the open herd and the merit of individual nucleus boars are discussed." @default.
- W2029382675 created "2016-06-24" @default.
- W2029382675 creator A5013560213 @default.
- W2029382675 creator A5036821587 @default.
- W2029382675 date "1980-03-01" @default.
- W2029382675 modified "2023-09-26" @default.
- W2029382675 title "Estimates of costs and returns of selecting pigs on growth rate and backfat thickness" @default.
- W2029382675 cites W2118923595 @default.
- W2029382675 cites W2155414393 @default.
- W2029382675 cites W2160832918 @default.
- W2029382675 cites W2321763969 @default.
- W2029382675 cites W2329591480 @default.
- W2029382675 doi "https://doi.org/10.1016/0301-6226(80)90100-1" @default.
- W2029382675 hasPublicationYear "1980" @default.
- W2029382675 type Work @default.
- W2029382675 sameAs 2029382675 @default.
- W2029382675 citedByCount "3" @default.
- W2029382675 crossrefType "journal-article" @default.
- W2029382675 hasAuthorship W2029382675A5013560213 @default.
- W2029382675 hasAuthorship W2029382675A5036821587 @default.
- W2029382675 hasConcept C105795698 @default.
- W2029382675 hasConcept C140793950 @default.
- W2029382675 hasConcept C149782125 @default.
- W2029382675 hasConcept C33923547 @default.
- W2029382675 hasConcept C86803240 @default.
- W2029382675 hasConceptScore W2029382675C105795698 @default.
- W2029382675 hasConceptScore W2029382675C140793950 @default.
- W2029382675 hasConceptScore W2029382675C149782125 @default.
- W2029382675 hasConceptScore W2029382675C33923547 @default.
- W2029382675 hasConceptScore W2029382675C86803240 @default.
- W2029382675 hasIssue "2" @default.
- W2029382675 hasLocation W20293826751 @default.
- W2029382675 hasOpenAccess W2029382675 @default.
- W2029382675 hasPrimaryLocation W20293826751 @default.
- W2029382675 hasRelatedWork W2043099224 @default.
- W2029382675 hasRelatedWork W2067341816 @default.
- W2029382675 hasRelatedWork W2114668360 @default.
- W2029382675 hasRelatedWork W2330407128 @default.
- W2029382675 hasRelatedWork W2552050053 @default.
- W2029382675 hasRelatedWork W2952216749 @default.
- W2029382675 hasRelatedWork W2969635709 @default.
- W2029382675 hasRelatedWork W3037784022 @default.
- W2029382675 hasRelatedWork W4229963900 @default.
- W2029382675 hasRelatedWork W4234996786 @default.
- W2029382675 hasVolume "7" @default.
- W2029382675 isParatext "false" @default.
- W2029382675 isRetracted "false" @default.
- W2029382675 magId "2029382675" @default.
- W2029382675 workType "article" @default.