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dc.contributor.authorBELTRAME, R. T.
dc.contributor.authorBARIONI, L. G.
dc.contributor.authorQUIRINO, C. R.
dc.contributor.authorSILVA, O. D. D. da
dc.date.accessioned2026-01-14T18:48:36Z-
dc.date.available2026-01-14T18:48:36Z-
dc.date.created2009-08-17
dc.date.issued2009
dc.identifier.citationScientia Agricola, Piracicaba, v. 66, n. 4, p. 447-450, July/Aug. 2009.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/572442-
dc.descriptionSeveral models have been developed to evalute reproductive status of cows through concentration of progesterone in milk, the effect of sex selection in the commercial production of herds and bioeconomic performance of the multiple ovulation and embryo transfer system in select herds. However, models describing the production of embryos in superovulated females have yet to be developed. A probability density function of the number of embryos collected by donors of the Nelore breed was determined. Records of 61,928 embryo collections from 26,767 donors from 1991 to 2005 were analyzed. Data were provided by the Brazilian Association of Creators of Zebu and Controlmax Consultoria e Sistemas Ltda. The probability density function density function of the number of viable embryos was modeled using exponential and gamma distributions. Parameter fitting was carried out for maximum likelihood using a non-linear gradient method. Both distributions presented similar level of precision: root mean square error (RMSE)=0.0072 and 0.00071 for the exponential and gamma distributions, respectively; both distributions are thus deemed suitable for representing the probability density function of embryo production by Nelore females.
dc.language.isoeng
dc.rightsopenAccess
dc.titleProbability density function of the number of embryos collected from superovulated Nelore breed donors.
dc.typeArtigo de periódico
dc.subject.thesagroGado de Corte
dc.subject.thesagroGado Nelore
dc.subject.thesagroReprodução
dc.description.notesTítulo em português: Função de densidade de probabilidade do número de embriões produzidos por doadoras da raça nelore.
riaa.ainfo.id572442
riaa.ainfo.lastupdate2026-01-14
dc.contributor.institutionRENATO TRAVASSOS BELTRAME, CENTRO DE CIÊNCIAS E TECNOLOGIAS AGROPECUÁRIAS; LUIS GUSTAVO BARIONI, CPAC; CELIA RAQUEL QUIRINO, LUIS GUSTAVO BARIONI; OZANIVAL DARIO DANTAS DA SILVA, CPAC.
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