Matches in SemOpenAlex for { <https://semopenalex.org/work/W3207994672> ?p ?o ?g. }
Showing items 1 to 94 of
94
with 100 items per page.
- W3207994672 abstract "Background: The Gyr breed is widely used in Colombian low tropic dairy production systems. During the last 10 years, the Asociación Colombiana de Criadores de Ganado Cebú† - ASOCEBU, has been leading a dairy milk control program which led to the creation of a dataset that permits to carry out the first analysis of milk yield in Gyr cattle in the country using records from several herds. Objectives: To study milk production dynamics of Gyr cattle in the Colombian low tropic through the estimation of lactation curves and four derived production parameters: total milk yield between 5 and 305 days (TMY305), peak milk yield (PMY), days at peak (DP) and persistency (P). Methods: 13,798 daily milk yield records from 1,510 cows performing in 103 herds were used; the total number of lactations was 2,480. Four models were considered: Wood, Wiltmink, Papajcsik & Bordero, and a second-degree polynomial. Mean square error, mean absolute error, mean square error of prediction, Akaike and Bayesian information criteria were used to select the model better describing each lactation using the majority rule, that is, the model selected by most criteria was the chosen one. The shape of each fitted lactation curve was checked using basic results from calculus which permitted the classification of the estimated curves into two groups: typical and atypical; only typical functions were used to compute the four aforementioned production parameters. Results: The second-order polynomial was the model most frequently selected, while the Papajcsik & Bordero model had the lowest frequency. Average TMY305, PMY, DP and P were 3,489.86 kg, 17.28 kg, 57.17 days, and 0.83, respectively, with coefficients of variation: 0.27, 0.21, 0.41, and 0.16. Conclusions: This study permitted to identify individuals with outstanding phenotypic performance. To the best of our knowledge, this is the first study of this kind involving thousands of lactations from Gyr cows performing in several regions of Colombian low tropic." @default.
- W3207994672 created "2021-11-08" @default.
- W3207994672 creator A5005313029 @default.
- W3207994672 creator A5015707689 @default.
- W3207994672 creator A5019275191 @default.
- W3207994672 creator A5054759627 @default.
- W3207994672 creator A5087465268 @default.
- W3207994672 date "2021-03-30" @default.
- W3207994672 modified "2023-09-25" @default.
- W3207994672 title "Estimation of lactation curves of Gyr cattle and some associated production parameters in the Colombian low tropic" @default.
- W3207994672 cites W1755854157 @default.
- W3207994672 cites W1968904140 @default.
- W3207994672 cites W1973712589 @default.
- W3207994672 cites W1976805128 @default.
- W3207994672 cites W1997716698 @default.
- W3207994672 cites W2041718728 @default.
- W3207994672 cites W2049812036 @default.
- W3207994672 cites W2061039468 @default.
- W3207994672 cites W2073656431 @default.
- W3207994672 cites W2078390887 @default.
- W3207994672 cites W2107066966 @default.
- W3207994672 cites W2142635246 @default.
- W3207994672 cites W2159092178 @default.
- W3207994672 cites W2314841307 @default.
- W3207994672 cites W24871369 @default.
- W3207994672 cites W2798102897 @default.
- W3207994672 doi "https://doi.org/10.17533/udea.rccp.v35n1a01" @default.
- W3207994672 hasPublicationYear "2021" @default.
- W3207994672 type Work @default.
- W3207994672 sameAs 3207994672 @default.
- W3207994672 citedByCount "0" @default.
- W3207994672 crossrefType "journal-article" @default.
- W3207994672 hasAuthorship W3207994672A5005313029 @default.
- W3207994672 hasAuthorship W3207994672A5015707689 @default.
- W3207994672 hasAuthorship W3207994672A5019275191 @default.
- W3207994672 hasAuthorship W3207994672A5054759627 @default.
- W3207994672 hasAuthorship W3207994672A5087465268 @default.
- W3207994672 hasBestOaLocation W32079946721 @default.
- W3207994672 hasConcept C105795698 @default.
- W3207994672 hasConcept C126674687 @default.
- W3207994672 hasConcept C139719470 @default.
- W3207994672 hasConcept C139945424 @default.
- W3207994672 hasConcept C140793950 @default.
- W3207994672 hasConcept C162324750 @default.
- W3207994672 hasConcept C168136583 @default.
- W3207994672 hasConcept C187736073 @default.
- W3207994672 hasConcept C194775826 @default.
- W3207994672 hasConcept C2776482104 @default.
- W3207994672 hasConcept C2776659692 @default.
- W3207994672 hasConcept C2776977481 @default.
- W3207994672 hasConcept C2778348673 @default.
- W3207994672 hasConcept C2779234561 @default.
- W3207994672 hasConcept C3020541086 @default.
- W3207994672 hasConcept C33923547 @default.
- W3207994672 hasConcept C54355233 @default.
- W3207994672 hasConcept C86803240 @default.
- W3207994672 hasConcept C96250715 @default.
- W3207994672 hasConceptScore W3207994672C105795698 @default.
- W3207994672 hasConceptScore W3207994672C126674687 @default.
- W3207994672 hasConceptScore W3207994672C139719470 @default.
- W3207994672 hasConceptScore W3207994672C139945424 @default.
- W3207994672 hasConceptScore W3207994672C140793950 @default.
- W3207994672 hasConceptScore W3207994672C162324750 @default.
- W3207994672 hasConceptScore W3207994672C168136583 @default.
- W3207994672 hasConceptScore W3207994672C187736073 @default.
- W3207994672 hasConceptScore W3207994672C194775826 @default.
- W3207994672 hasConceptScore W3207994672C2776482104 @default.
- W3207994672 hasConceptScore W3207994672C2776659692 @default.
- W3207994672 hasConceptScore W3207994672C2776977481 @default.
- W3207994672 hasConceptScore W3207994672C2778348673 @default.
- W3207994672 hasConceptScore W3207994672C2779234561 @default.
- W3207994672 hasConceptScore W3207994672C3020541086 @default.
- W3207994672 hasConceptScore W3207994672C33923547 @default.
- W3207994672 hasConceptScore W3207994672C54355233 @default.
- W3207994672 hasConceptScore W3207994672C86803240 @default.
- W3207994672 hasConceptScore W3207994672C96250715 @default.
- W3207994672 hasLocation W32079946721 @default.
- W3207994672 hasLocation W32079946722 @default.
- W3207994672 hasOpenAccess W3207994672 @default.
- W3207994672 hasPrimaryLocation W32079946721 @default.
- W3207994672 hasRelatedWork W1984912326 @default.
- W3207994672 hasRelatedWork W2007539288 @default.
- W3207994672 hasRelatedWork W2111081603 @default.
- W3207994672 hasRelatedWork W2112530613 @default.
- W3207994672 hasRelatedWork W2621340874 @default.
- W3207994672 hasRelatedWork W2730700994 @default.
- W3207994672 hasRelatedWork W2919752802 @default.
- W3207994672 hasRelatedWork W3191269460 @default.
- W3207994672 hasRelatedWork W4237242124 @default.
- W3207994672 hasRelatedWork W4302287930 @default.
- W3207994672 isParatext "false" @default.
- W3207994672 isRetracted "false" @default.
- W3207994672 magId "3207994672" @default.
- W3207994672 workType "article" @default.